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The wheels of technology are always in motion and most of the time that's a
good thing. Not content to stand still with their current high-end offering,
Alinco decided to revise it's well-received DJ-X10 wide range receiver in what
appears to be a direct effort to displace AOR's MkII handheld from the catbird
seat.
Dubbing their new DJ-X2000 as the "intelligent receiver," Alinco added more memory, improved the receiver specs, added a number of features that users crave and threw in some innovative technology for good measure. The result is a handhled, technological wonder which has been aimed directly at AOR's and Yupiteru's top gun offerings. How well did they do at hitting the intended mark? Just how "intelligent" is this receiver? Should AOR and Yupiteru be worried? Read on to find out... What follows are my personal impressions regarding the features and performance of this receiver. This, in no way, should be viewed as an endorsement to purchase this radio nor is it intended to discourage anyone from buying it. I have no personal or business relations with Alinco. These are simply thoughts offered to my fellow hobbyists who may be interested in purchasing this particular radio or simply want to know more about it. A lot of hard work and effort has gone into the testing and writing of this review. I would appreciate it if every effort is made to keep this document whole with me as the original author. Of course, it doesn't hurt that this document is copyrighted and therefore protected by US law and international treaties governing intellectual property. Except for personal use, and for the sake of brief passages quoted in reviews and given appropriate credit, no part of this work may be reproduced in any forms or by any means, or stored in a database or retrieval system, without prior written permission of the author. And if you want to share your thoughts about this review with me or have further questions, feel free to send e-mail. Thank you and enjoy!
Rich Wells |
| Channels | 2000 | |
|---|---|---|
| Banks | 5 groups (A-E) of 10 each (0-9) | |
| Coverage | 100 kHz - 2150 MHz | |
| Scan | 7 chan/sec | |
| Search | 28 steps/sec | |
| Steps | 5/6.25/9/10/12.5/15/20/25/30/50/100 kHz | |
| Modes | AM, FM, WFM, LSB, USB, CW | |
| Sensitivity | As listed in the manual: AM (at 10dB S/N): FM (12dB SINAD): WFM (12dB SINAD, typ): SSB/CW (at 10dB S/N): | |
| Conversion | Triple | |
| Priority | 1 channel | |
| Search limits | 20 | |
| Search skip | 1000 | |
| Auto-store | Yes | |
| S-meter | Yes | |
| Delay | Yes, Programmable | |
| Lockout | Yes | |
| Attenuator | 4 levels | |
| Lock | Yes | |
| Tone codes | Yes - CTCSS/PL | |
| Computer intf | Yes | |
| Rotary control | Yes | |
| Channel count | No | |
| Data skip | No | |
| Clock | No | |
| Timers | Yes, On/Off | |
| Weather | No | |
| Weather Alert | No | |
| Light | Display & Keypad | |
| Power | NiCd pack or 4 AAs | |
| Audio | 100mW at 10% THD | |
| Size | 2.2(W) x 5.9(H) x 1.1 (D) inches 57(W) x 150(H) x 27.5(D) mm | |
| Weight | 7.0 oz. (200 grams) | |
| Antenna | BNC, 50 ohm | |
| Interfaces | BNC, DC, earphone, PC | |
| Memory | non-volatile |
I was also provided with an early English translation which was largely a copy of the DJ-X10 manual with all the DJ-X10 references changed to DJ-X2000. Some sections were empty or incomplete so it's possible that I may have missed the finer details on some features.
What I will be able to comment on is the organization of the Japanese manual and if it's anything like the DJ-X10 version (which it appears it is), it should be fairly straightforward and useful to new users.
Like most RadioShack manuals, the first page or two lists the major features and specifications of the radio before listing the Table of Contents which is well detailed and helps to cut down on lookup time.
The manual is broken down into four chapters with most of the "meat" coming in Chapter 3. Chapter 1 concerns itself with introducing the new user to the radio's controls, LCD and accessories. The first diagram provides a comprehensive break down of all the controls, buttons and interfaces. Up next is a thorough review of the LCD and what all its various indicators are used to convey. The last section in this chapter deals with the accessories and provides much material on battery and charger use.
Chapter 2 concerns itself with introductory material and providing the basic operating instructions thus helping the new user come up to speed quickly. The topics begin with powering the unit on and how to adjust the volume and squelch controls. Next up are details on how to use the keypad to enter frequencies and then use the Up/Down and rotary controls to adjust it.
The manual then quickly covers doing searches from the VFO as well as using the band scope. Minor details such as using the backlight, key beep, keypad lock and on/off timers. The last section covers the major operating modes (VFO, search and memory) and what buttons are used to move between them.
Chapter 3 gets into the good stuff and covers all the nitty-gritty details. To be sure to get the most out of you radio, be sure to pay attention and don't be afraid to experiment as well as go through all procedures to learn everything you can.
Section 3.1 is broken down into a number of sub-sections. It starts off simply by covering how to manually set the receive mode, step size, attenuator and battery saver. Strangely, the next section covers the PC/clone interface and how to configure and use it. The next few sections cover a hodge podge of settings including battery voltage display, audio tone, LCD opening message and radio resets.
The manual then moves into explaining the various scan settings such as the resume condition and signal level. It then changes gears and covers the priority feature and its settings. The channel scope (band scope) feature is then covered followed by a number of sections which discuss the frequency counter. There are then individual sub-sections for the voice inverter, CTCSS, bug sweeper and digital recorder.
Section 3.2 covers various settings in VFO mode while 3.3 covers searching and 3.4 memory operations (of which there are a lot).
Chapter 4 is a typical ending chapter and contains the specifications, trouble shooting guidelines, available accessories and finally, a break down of the Set menu system.
Overall, the manual is well written and illustrated. Like many manuals, it wouldn't hurt from better organization which would only help new users better come to grip with such a feature filled radio.
Construction and Physical
The top panel rotary control is identical as is the rubber dust cap that
protects the speaker and interface jacks and a similar one on the side panel
which covers the DC power jack. If the user keeps the OEM antenna, it makes it
easier to tell the two models apart since the X2000 antenna is quite unique.
Once subtle but appreciated change is that the light gray lettering of the X10
has been replaced by white lettering on the X2000 which increases contrast and
makes such text easier to read.
The front panel is laid out exactly the same and can be broken down into three
main sections. The top section is dominated by the speaker grill and is
surrounded by three, gray mode buttons and the easily distinguishable, orange
power button. At the very top of the panel are still the recessed reset button
and receive LED indicator.
The second section resides in the middle of the front panel and consists of the
multi-function LCD. Remember that the LCD is well detailed in the first few
pages of the manual making it easy to lookup items you will likely not be
familiar with until you have some time under your belt.
The top half of the LCD displays various indicators which include the volume
setting as well as memory/search/VFO mode, active timer, battery saver,
priority, skip, attenuator, signal level, CTCSS, keypad lock, low battery,
receive mode and S-meter.
The bottom half of the LCD is a two line, dot-matrix display used to convey
such information frequencies, alpha-tags, search band, bank/band linking
display, band scope and this is where the Set menu system display options which
are navigated using the arrow and ENT keys.
The third and last section of the front panel houses the keypad and, at the
very bottom, model labels and microphone grill. They keypad consists of gray
buttons arranged in four columns of four buttons each. Primary lettering
appears on the key in white and secondary text (accessed via the F key on the
side panel) appears above each key in gold.
The right side panel consists of the previously mentioned DC power jack covered
by a thoughtful rubber dust cap and imprinted with the plug polarity. The left
side panel is identical to the X10 and consists of a rubber strip housing four
buttons (Function, squelch monitor, band scope and lamp). Just in front of this
strip are two, rubber rocker switches. The top switch is for selecting volume
or squelch (for setting their level) while the bottom switch is the up/down
arrow keys used for selecting and adjusting various settings.
Like the X10, the bottom panel is actually the bottom of the battery pack and
not really the radio itself. This pack can be the supplied NiCd pack (or an
optional increased capacity pack) or 4-AA dry cell case. The top panel is also
the same and contains the rotary control, speaker and interface jacks (covered
by a rubber dust cap) and BNC antenna jack.
The back panel contains two screw holes at the very top to attach the rugged
(and very appreciated) metal belt clip. Beneath the holes is the radio ID label
which lists the make, model and serial number. Nearly half of the rear panel is
really the back of the battery pack. Just above where the battery pack meets
the rear panel of the radio is the release switch for the pack.
Sliding the switch to the right release the pack and allows it to slide down
and detach from the radio body. This reveals three metal prongs which come into
contact with the pack and provide the positive and negative terminals as well
as a third which is used for recharging NiCd packs.
Based on one of Alinco's amateur HT's, both the DJ-X10 and DJ-X2000 are very
well made. This is easily conveyed to the user the first time the radio is
held in the hand. The X2000 is very compact and solid. All of the buttons and
controls have a very nice feel and hold up well over time. You definitely get
your money's worth here and even the demanding user will be happy with the
physical aspects of this radio.
Pictures
Antenna
To see just what kind of performer this antenna was, I put it up against an
average performing model; the GRE A0337 which is supplied on many of the
GRE-made handheld models sold by RadioShack.
VHF-lo performance is pretty bad below 60 MHz. Things pick up and get better
by the VHF civil aero band and are quite stunning on VHF-hi. Over 200 MHz is
similar to VHF-lo while the mid 400s are quite good indeed. Unfortunately, by
the time 800 MHz rolls around, it once again turns in poor results from here
on up.
It's obvious that the X2000 antenna has been tuned to provide best results on
VHF-hi and UHF-T band. If you're looking for good reception outside of these
public safety bands, you'd better look into a replacement antenna. Of course
that's good advice for any handheld owner looking to get the best performance
out of their radio.
Features
The keys come in a variety of types from the buttons and rocker switches on the
side panel to the mode buttons around the speaker and the keypad itself.
The side panel keys are well spaced and have a decent feel. But since the
entire area is contained under one rubber panel, the text for each button is
difficult to read and since none of them light up via the backlight, users had
best memorize the location of each for use in dimly lit or dark areas.
The rocker switches for Volume/Squelch and Up/Down are pleasant to use as well
but those of us with wider thumbs find it a bit tricky to use due to their
proximity to the raised side panel.
The power and mode buttons around the speaker have a very good feel to them; a
short throw with a positive click when engaged. It's too bad that the keypad
keys aren't quite as nice to use. These keys have short throws as well but
there is no nice click when they make contact. This gives them a much more
mushy feel and makes it harder to use when multiple keys are used in sequence.
Luckily, each keypress is accompanied by a beep which helps provide better
feedback. The beep volume is not slaved to the audio volume and using the Set
menu system it can be set to a low or high volume or turned off altogether.
To prevent accidental activation of the keypad there is a lock function. When
activated, a key icon appears on the LCD and all keys are disabled except for
Volume/Squelch, Up/Down, Lamp, squelch monitor and power. Unfortunately, the
rotary control is not locked which means the current VFO frequency or memory
channel can be accidentally changed. While accidental activation of the rotary
control is not likely, I would prefer that this control be disabled as well.
One unique aspect of the X10 was that its LCD was colored green while the new
X2000 uses a typical gray colored version. Splitting the LCD horizontally in
half yields a custom-designed upper half and a two line "dot matrix" lower
half.
On the far left of the custom half is the volume setting which consists of
seven vertically stacked bars increasing in length as it goes up. Pressing the
Volume switch provides a numeric indication of the current setting which can
range from 0 - 32 (although 0 - 6 are essentially a mute setting). While the
setting is displayed, the Up/Down switch can be used to adjust the volume.
Similar in operation is the squelch control which is adjusted by pressing the
Squelch switch followed by Up/Down. The squelch can also be varied from 00 - 32
(which is much better than the 10 steps allowed on the X10). Accompanying the
squelch is the monitor button on the side panel. Holding it down forces the
squelch open allowing even the weakest of signals to be heard. Pressing
Function then Monitor locks the squelch open until is is manually closed by
repeating this keypress sequence.
Running along the top of the LCD are two rows of indicators which convey such
information such as the mode, tone squelch, attenuator, battery saver, timers,
priority, key lock and low battery.
Below these indicators and just to the right of the Volume graph is displayed
the current receive mode. To the right of this is the S-meter which consists of
7 bars which increase in height as they progress to the right hand edge of the
display. When the current step size is being set, the receive mode and S-meter
are temporarily replaced by the step size selection menu.
The X2000 has an auto receive mode which is programmed to select a mode based
on the current operating frequency. This is easily overridden and allows users
to pick the receive mode from AM, FM, WFM, LSB, USB and CW. Also set for
automatic selection is the step size. This too can be manually selected from
one of the 23 supported step sizes (which includes the latest 8.33 kHz VHF
aero spacing). There is also a user-specified step size which can be set
between 50 Hz and 499.95 kHz in 50 Hz increments.
A note in the owner's manual mentions that the step size is fixed in the AM
broadcast band to 10 kHz for the North American version and 9 kHz for the
European version.
Overall, the LCD is easy to read and visibility holds up well when viewed from
almost all angles (and you'll likely have little use for the Contrast setting
under the Set menu). Due to the radio's small size, the numbers and indicators
are a bit on the small side which might be a consideration for some users.
For nighttime use, the X2000 provides a backlight for both the display and
the keypad. The backlight is adequate for both but could definitely be improved
upon. Of course what you gain in illumination is lost in battery drain so there
are always compromises to be reached.
The nicest thing about the backlight is its available settings. Using the Set
menu, it can be set to illuminate only when the LAMP key is depressed, to
alternate between on and off with LAMP presses or to automatically turn on for
five second intervals when a control or key is used.
Another light is the receive (RX) indicator which is the small LED located in
the upper right corner of the front panel. It is normally off but when a signal
is received, it glows green for regular HF/VHF/UHF monitoring. If the unit is
receiving a wide FM signal in stereo and headphones are plugged in, the LED
glows orange (while true stereo is piped out the speaker jack). On the Japanese
version, which contains the 250 - 260 MHz transmitter, the LED glows red while
transmitting.
Speaking of headphones (or earphones), it's unlikely that most users will be
thrilled with using them since there is a disturbing, low frequency "thump"
which occurs when the radio comes in and out of the battery saver. And there's
also some form of audio enable/disable since going in and out of the Set menu
while sitting in VFO mode causes the same thumping sound.
Audio on the X2000 is just like the X10; loud and crisp. Some early X2000 users
reported excessive audio hiss which, once returned to the factory for repair,
was removed. The crispness of the audio does tend to enhance noise components
and might annoy some users. Volume is plentiful and even when set at its
maximum level there was little distortion heard.
Located under the Set menu is an item to configure the audio tone for high or
low. While it's not specifically mentioned in the manual, I only found this
setting to effect the audio quality of wide FM signals.
The squelch tail burst of white noise heard at the end of all signals is
excessive on the X2000. For the money, one would expect a little better quality
from this part of the receive circuitry. Unfortunately the CTCSS circuitry
does not seem to be tied into the audio circuitry since enabling the CTCSS tone
made no discernible difference in the squelch tail length.
One function which is tied into the squelch operation is the Bell. When enabled
via the Set menu, the bell signal will be sounded for 10 seconds to let you
know when the squelch has opened. Also, the bell icon flashes on the screen
during these 10 seconds and then remains on (presumably as an indicator that
you received a signal should you be away from your X2000) ever after.
Not included on the North American T version (due to US laws) is the voice
descrambler feature which implements simple voice inversion which is used as a
security measure to help discourage eavesdropping. When enabled, the rotary
control allows the selection of the inversion point among 126 levels.
One feature found on all models is the digital recorder which can record up to
160 seconds of audio either from a received signal or via the built-in
microphone (should you decide to dictate your grocery list whilst out and
about, I guess). Recording can be started and stopped at will and as long as
you don't leave the record screen, it can be paused and resumed. It is nice
that when you're recording a received signal, the recording automatically
starts when the squelch breaks. Too bad it doesn't stop/pause when the squelch
closes!
Recorded audio fidelity is pretty good; it's just a bit muffled. The manual
states that sound can be recorded 10,000 times (due to limitations of all
read/write electronic media whose electrical properties eventually wear out).
A related audio function is the ability to pipe audio picked up from the
microphone to an attached earphone or headphones (this function does not work
unless there is something plugged into the speaker jack). Once this function is
engaged, only the volume, rotary and CLR controls are active.
While it does do a decent job of picking up and amplifying audio, it is not
directional and, even worse, any touch to the radio case or use of the rotary
control results in very loud sounds being heard.
While the DJ-X2000 did not retain the time of day clock (dang!), it does have
on and off timers. Both are simply 24 hour timers which can be set in 30
minute intervals and take effect from the point at which they are enabled.
Once they are started, the timers simply count down and when the specified
time has elapsed, they turn the X2000 on or off accordingly.
To help you make the batteries last as long as possible, the X2000 has an
adjustable battery saver which engages whenever the unit is not searching or
scanning and no signal has been received in a few seconds. Using the Set menu
system, the amount of time spent asleep between wake-up intervals to check for
signal activity can be specified as short, normal or long.
Another feature related to the battery is the X2000's ability to display the
voltage left in the batteries (down to a tenth of a volt as long as external
power is not used) and it's updated twice a second. This is a feature every
radio should have since it is an invaluable tool for keeping the user apprised
of how long it will be until the battery needs replacing.
And it will likely need replacing often if you stick with the stock NiCd
battery pack because of the high battery drain. Sitting on a frequency with
the squelch closed resulted in a 98 milliamps (ma) drain which dropped to 58 mA
when the battery saver kicked in.
With the X2000's robust audio, users will be tempted to crank up the volume to
fully appreciate it. But doing so will result in a hefty current drain. With
the volume set at 12 (a decent low but still usable value) the drain was 115
ma (max). At a volume setting of 20 the drain jumped to 203 ma (max) and at 30
it was 292 ma (max).
One attractive trait of the X2000 to some is its huge memory capacity. With
2000 channels, it can take a while to fill it all up! Unfortunately the X2000
does not have a "true" computer interface but it does have a cloning feature
which can be tricked into doing memory upload/download. The cloning feature was
designed to allow one user to clone the contents of one X2000 into another. If
you're interested in this, you'll just have to obtain the proper computer
cable to connect to your PC and download the X2000 freeware from Alinco's
web site.
Being the all-programmable device that it is, the X2000 allows its owner to
program the LCD contents that are displayed when it is powered up. This
consists of any characters in 3 rows of 12 characters each.
The last item to cover here are the radio resets of which there are two. The
first is a system reset which resets user-adjustable features and settings but
does not touch memory contents. The "all" reset does a system reset as well as
erasing the entire memory contents.
Set Mode
On the X2000, the Function key is pressed followed by the SET key which
displays the top level of menu choices. The arrow keys or rotary control, along
with the ENT key are then used to navigate through the menus until the desired
item is located.
What follows is a breakdown of the Set menus to give you an idea of the
type and number of options available:
Related to the Set menu system is the Help menu system. After pressing the HELP
key, a menu is presented allowing you to ask for help on the function of a key
or how to use a particular feature. Most items have English descriptions and
most features will actually engage the feature once selected (just as though
you had pressed the right key(s) on your own).
VFO
Entering VFO mode is as simple as pressing the VFO key. Since the X2000 only
has one receiver, only one of the VFOs is active at a time. The active VFO is
displayed on the upper line and its letter, A or B, is printed in upper case
while the inactive VFO appears on the lower line with its letter in lower case.
Swapping active VFOs while in VFO mode is achieved by simply pressing the VFO
key.
To tune to any frequency, simply key it in via the keypad followed by ENT.
Changing the frequency, by the currently selected step size, can be done via
the Up/Down keys or the rotary control. Large frequency changes can be made by
first selecting the 1, 10 or 100 MHz digit and then turning the rotary control
to effect the desired change.
VFO features include the ability to copy the active frequency to the inactive
VFO and link the two VFOs together. When the VFOs are linked, the difference
between the two VFOs is maintained regardless of how the active frequency is
changed. This should be a beneficial feature for those who like to track both
sides of a repeater system.
Like any good communications receivers, you have the ability to override the
programmed bandplan by altering the receive mode and step size. Available
receive modes include FM, WFM, AM, LSB, USB and CW. Too bad there was no
narrow AM for those who are heavy into HF. As mentioned earlier, there are
23 available step sizes which includes the new 8.33 kHz aero spacing and a
very flexible user-defined size.
For those users who have to deal with hostile RF environments, an attenuator
to weaken all incoming signals can be a great blessing. Luckily, the X2000 not
only contains an attenuator but one with two levels; 10 and 20 dB. The down
side is that the LCD only shows you that the attenuator is on but not at what
level.
Another feature which comes in handy in RF-saturated monitoring locations is
CTCSS. The X2000 has both CTCSS squelch control as well as CTCSS scan decode.
Once enabled, one of the 38 supported tones can be used to condition the
squelch so that only signals with the matching tone are received. There is
also a very handy reverse function that, when enabled, receives all signals
except for ones with the specified tone.
The X2000 comes with a useful CTCSS decode to help you determine if any
transmission uses a CTCSS tone. Unfortunately it's Uniden-like and takes a
while (it can scan about 2-3 tones per second) to ferret out if any tone is
being used.
One feature I was disappointed to see missing was some form of step offset
adjustment. I found this by tuning to the start of the FM broadcast band at
88.1 MHz and setting the step size to 200 MHz. But when I tuned to the next
step, instead of ending up on 88.3 where I wanted to be, the tuner rounded it
off to an even multiple of the step size and went to 88.2 MHz. An "intelligent"
receive would not do this.
RF Features
It was quite a surprise to learn that Alinco had included a frequency counter
in their latest high-end model. Many hobbyists use frequency counters to help
them grab the frequency of unknown transmitters. The biggest problem with such
a device is getting close enough to the transmitter to register the frequency
being used. To have such a handy device built into a radio also cuts down on
the number of gadgets one needs to take into the field.
The X2000's frequency counter can be accessed via two features; Flash Tune and
Frequency Counter. Both features can operate between 50 and 1300 MHz, and
signal intervals must be greater than 0.1 seconds in duration.
In the frequency counting mode the X2000 constantly samples for the strongest
signal and updates the display accordingly. This mode makes it easy to bring
the X2000 around devices and watching the display readout it's easy to find
the frequencies being used by your favorite RF devices. In this mode, no audio
is displayed since the radio is simply busy sweeping for the strong signal.
Without an antenna attached, my X2000 constantly displayed 886.4 MHz.
When the X2000 is put into flash tune mode, it basically sits there with the
word CHECKING appearing on the display. Should a strong enough signal be
registered, the X2000 will beep and tune to that frequency allowing the audio
to be heard.
For testing purposes, I attached the same copy of an antenna to both the X2000
and my Optoelectronics Scout frequency counter. Using varying distances and
power levels, I transmitted a signal in various amateur radio bands and noted
how well both units received. My empirical results indicate that the X2000 is
about half as sensitive as the Scout.
The X2000's frequency counter is indeed a useful tool but only if it is used
properly and with the right frame of mind. Most of us who use such a device
understand how they work and why, for best results, different filters and
antennas help get the job done quickly and easily. It is not some sort of
magical device, as many seem to think, which will provide you the information
that you seek simply by pressing a button.
One interesting drawback of the X2000 was that on some tests, it liked to
display a frequency value which was twice the actual value.
Related to the frequency counter would be the electric field strength meter
which basically serves to display the relative strength of a signal. In the
RF Checker mode, it uses the S-meter to indicate the strength of a nearby
signals. In RF Level mode, a signal level is specified and the unit remains
quiet until a signal stronger than that level is detected which then alerts
the user by buzzing for 10 seconds and flashing the bell LCD icon.
One feature which was copied from its diminutive sibling, the X2, was the
Transweeper. What this is advertised as is a bug detection system. By emitting
an audio tone, the X2000 can check a frequency for the presence of this same
tone and alert the user accordingly.
Use of the Transweeper can be done from VFO, memory or search modes. In VFO
mode, only the active frequency is checked for this audio tone detection. In
memory mode, the current bank of frequencies is scanned to try and detect the
tone. In search mode every frequency is checked as the X2000 sweeps through the
programmed range.
Memory
Well, the X2000 has gone one step farther and contains as many channels as its
model number indicates. The provided 2000 memory channels are broken up into
five alphabetic banks (A - E) which are each divided up into 10 numeric banks
of 40 channels each.
Each channel is capable of storing a frequency, receive mode, step size, 8
character alpha-tag, CTCSS data and attenuator setting. Most of these are set
while in VFO mode and are simply copied over on the memory write operation.
Once the data is specified in the VFO, the memory write operation is begun by
pressing F and MW. The X2000 then prompts for the memory location to write to.
The decimal (.) key is used to select the major bank (A - E) and the minor bank
(0 - 9) is specified by using the rotary control. To specify the channel within
the bank, the Down arrow key is used to move the cursor to the channel field
and then the rotary control selects which one. Pressing ENT finishes the
transaction while CLR aborts it.
Sadly, the X2000 does NOT remember the last channel that was programmed (this
is NOT intelligent). Instead, when the memory write operation is begun, it
displays the first empty location thinking that's what you wish to program.
With 2000 channels and 50 banks to program, it's not likely that the very
first empty memory channel is where you want to write. This becomes all too
apparent when programming the higher numbered/lettered banks and have to do a
lot of repetitive key presses and rotary twists to get where you want to go.
Do yourself a favor and retain your sanity by using the optional freeware for
programming the X2000's contents.
One protective feature to be aware of early on is Direct Write. If Direct Write
is turned off, then you can only change a memory channel's frequency value and
alpha-tag but not its other settings.
Once memory begins filling up, it's easy to go into memory mode and look
around at what's stored there. Pressing the MR key puts the X2000 in memory
read mode and from there, the major bank can be changed by pressing the decimal
(.) key, the minor bank changed by pressing its numeric key and the channel
within a bank is changed by using the rotary control or Up/Down keys.
The X2000 contains a rich set of memory operations designed to help you get
the most out of the programmed contents. For starters, a handy VFO write
feature allows the currently displayed memory channel contents to be copied
directly to the last used VFO. It's also possible to use the tune function and
use the rotary control or arrow keys to tune away from the displayed memory
channel frequency.
Other useful memory functions include the ability to copy, move or delete a
memory channel or an entire memory bank. Two bugs I noticed right off were the
fact that the bank delete function to note erase the channel alpha-tags and
the channel delete function only clears the frequency and alpha-tag (not the
other settings like attenuator, CTCSS, etc.)
The absent-minded will also appreciate the channel restore feature which allows
a deleted channel's contents to be recalled.
Those who find the 2000 channels intimidating or hard to keep track of should
make good use of the channel alpha-tags (too band that there are no provided
for the major or minor banks). If descriptive alpha-tags are used, then it will
likely be possible to track down a misplaced entry using the tag search
function.
Scanning
Right out of the box, scanning can be easily started by going into memory mode,
positioning the radio within the desired bank and then pressing the SCN key.
Besides the constantly updating bank and channel info, which includes the
channel frequency and alpha-tag, the only indication that a scan is in progress
is an arrow which appears next to the bank number.
When scanning stops on an active signal, it will stay there until the requested
resume condition is met. Like the X10, the X2000 has three resume modes to
choose from. The first is BUSY and when selected, this modes instructs the scan
to stay on the active frequency until the transmission ends and then resume
scanning.
The second resume mode is STOP and when an active signal is found, the scan
operation stops on that memory channel and stays there. The third resume
condition is TIMER and in this mode, scanning only stops on an active signal
for a specified amount of time before forcing the scan to resume. This time
period is set separately and can be between 1 and 12 seconds.
If scanning does stop on an active signal, you can manually force the scan to
resume in BUSY and TIMER modes by simply twisting the rotary key or pressing
the Up/Down key. These same keys are used to change the direction of the scan
while scanning is in progress (you'll learn to use the arrow key on the display
to tell which direction it's going at any given time). And scanning can be
stopped at any time by pressing the SCN key. Scanning can also be transferred
to another bank by simply pressing the decimal (.) and numeric keys.
It's also possible to lock a channel out of the scanning sequence by turning on
its SKIP setting. This can be done manually while in memory mode or if scanning
stops on an undesired channel.
Another semi-useful setting is the scan level feature. This Set menu option
allows a minimum S-meter level that a signal must meet before the scan will
stop on it. It's similar to raising the squelch level but in a more
deterministic way since the specified levels (1-7) relate directly to the bars
displayed on the LCD S-meter.
Another scanning function which I don't personally use on any radio is that
of mode scanning. Using the Set menu, it's possible to specify a receive mode
and only those channels with a matching mode will be scanned.
As mentioned earlier, the X2000 comes ready to scan the bank of the currently
display channel while in memory mode. To be more useful, a radio must have the
ability to scan more than one bank. On the X2000 this is done using the Bank
Link function.
The Bank Linking screen is straightforward to use but takes a little work to
navigate down through the Set menu to get at it. Once there, the decimal key
is used to specify the major/alpha bank and then the numeric keys are used
toggle on or off the minor/numeric banks. And you can always come to this
screen simply to verify which banks are currently linked for scanning.
One feature related to bank linking is that of the Preferential Memory Scan
(PMR). This feature allows you to specially tag up to 200 memory channels and
thus include them in an exclusive list which can be scanned apart from the
normal bank scheme. This PMR supports 10 banks of 20 channels each.
In the programming phase, you select a PMR bank to work with and then link any
of that bank's 20 channels to any normal memory channel. Once programmed, a
PMR scan can be started which then prompts for which of the 10 banks are to be
scanned and then scanning starts.
Considering the amount of data the X2000 can store, I found it rather
unintelligent that Alinco did not take a cue from AOR and provide the user with
several bank link settings. Given that the X2000 has 50 banks, there are a LOT
of combinations to scan things and it gets to be a pain to dig through the Set
menu and change the linkings when circumstances dictate the need to do so.
It would be much better if there were 10 or so link settings which would allow
10 or so linkings to be set up ahead of time. Then it would be only a matter of
programming the linkings one time and selecting the desired configuration
thereafter. Hopefully we can look forward to that in the X3000.
Another issue which can hopefully be addressed is the X2000's pitiful scan
rate. While the rest of this high-end Alinco is state of the art, the rate at
which memory channels is indicative of scanners made 15 years ago. Scanning all
the channels I had programmed into major bank A (which was 116) took 17 seconds
which comes out to almost 7 channels/second. That is kind of a worst case
scenario since both AM and FM were programmed and frequencies spanned 42 to 868
MHz and there were not in ascending order by any means and none of them were
using CTCSS.
For testing purposes I did scan some channels with CTCSS enabled and noted how
much of a delay occurred when scanning hit a channel with an active frequency
but the wrong tone. Scanning resumed quit quickly, just enough to let me see
the channel data on the LCD before scanning resumed, so figure as a rough guess
that only a couple hundred milliseconds were needed to determine the tone.
Searching
While in VFO mode, a simple press of the SCN key is enough to start a search
increasing in frequency according to the current step size. The search
continues until a signal is found and then it pauses to allow reception of
the signal. The search can be stopped at any time by pressing the SCN key and
the direction of the search changed by the arrow keys or rotary control.
Like the VFO search, the VFO range search is basically a limit search which is
defined by the frequencies in the two VFOs and using the mode and step of the
current VFO. Once started, the search is confined to the range between the two
VFO frequencies and wraps when either end is reached.
The last type of search is the limit search which Alinco refers to as PMS
(Programmable Memory Scanning?) mode. The X2000 is quite flexible in that it
provides 20 programmable band limits. These 20 bands are broken up into two
major bands, P and p, with each broken up into 10 (0 - 9) minor bands.
Each band is easily programmed by using a step-by-step menu system which
prompts for each piece of data. This starts with the major and minor band
numbers followed by start frequency, end frequency, receive mode, step size
and alpha-tag. These bands come pre-programmed from the factory which gives
new users something to play with out of the box but you'll likely want to
define ranges of your own.
PMS mode is entered by pressing the PMS key and using the decimal (.) key to
select the major bank and the numeric key to specify the minor. This is enough
to start a single band search but the X2000 also provides for multiple band
searching using the PMS LINK function. This allows any of the 20 bands to be
linked together and searched consecutively.
Just like memory mode, PMS mode supports a number of useful operations for
managing the bands. These include the ability to copy, move, and delete bands
using SET menu functions.
Like any good communications receiver, the X2000 has the ability to lock out
up to 50 frequencies per band. Unwanted frequencies are placed into this pass
memory by simply pressing SKIP while paused on the undesired frequency in
PMS mode. Once passed, there is a special pass memory recall screen where the
locked out frequencies are displayed and can easily be removed from the list.
Since Alinco refers to searching operations as scanning, the scan settings for
minimum signal level and resume condition apply to PMS mode as well. It would
have been nice if there were separate settings for search mode since they are
usually different needs while searching.
Regardless of the search mode employed, if an active frequency is detected, the
X2000 can be put into tune mode to hold on that frequency by pressing the ENT
key. The rotary control or arrow keys can then be used to tune around and
you're also free to change the mode, step, attenuator, etc. This tuned
frequency and its settings can be easily copied to the active VFO and returning
to search mode is as simple as pressing the PMS key.
The last item to cover in searching is a feature usually found on the high-end
receivers, auto-store. When enabled, this advanced feature automatically
stores into one memory bank of your choosing all of the active frequencies
that are encountered.
Unfortunately, my X2000 had a firmware bug which caused it to turn off the
auto-store after it found the very first "hit." Between this anomoly and the
fact that the radio automatically deletes all data from the auto-store
memory bank, it made it impossible to tell if the auto-store operation was
"dumb" (stores duplicate hit frequencies) or "smart" (doesn't store duplicate
hit frequencies). I can only hope that for an intelligent receiver that it
uses the "smart" variety.
And while the auto-delete operation of memory bank contents is open to debate,
I would like to see this intelligent receiver provide an option to allow me to
override the default behavior if desired (i.e. disable the auto-delete).
The X2000 is no speed demon as far as search performance goes but it's nowhere
near as bad as the scanning rate either. It manages to search about four times
as fast as it scan since my emprical measurements put the search speed at
roughly 28 channels/second.
Priority
The sampling period is specified by a dedicated priority setting and can be set
between 1 and 12 seconds in 1 second intervals.
There is also a priority mode which instructs the priority function how to
operate once the priority frequency becomes active. In BUSY mode, the priority
frequency is tuned as long as a signal is active and then returns to the
previous mode. In STOP mode, the priority frequency remains tuned even after
the signal goes away. In TIMER mode, the priority frequency is only tuned for
at most a specified period of time before control returns to the previous mode.
Bandscope
Using the currently displayed frequency as a center point, a number of
frequencies are tested either side of this center point to detect activity. If
any activity is found, it shows up on the LCD as a vertical bar with its
height indicative of its strength. The final result, if there's sufficient
activity on the test frequencies, is a bar graph showing activity in the
surrounding spectrum.
The X2000 allows either 7 or 40 channels to be displayed (centered around the
current frequency). Just keep in mind that at 40 channels it can take a while
to update the entire display due to the X2000's slow speed.
While the band scope is enabled audio is muted. There is also a
user-selectable option to control when the searching takes place. When the
scope is first activated using the SRCH key, the spectrum is sampled and the
results displayed immediately. What happens next is controlled by the Channel
Scope SET menu setting. In SINGLE mode, the first "sweep" is the only one done
and the scope must be re-triggerd to sweep again.
In CONTINUOUS mode, the sweep runs continuously and the scope must be
deactivated for it to stop. In INTERVAL mode, the sweep runs once every ten
seconds. Just be advised that in this mode, if there's not a lot of activity on
the tested frequencies, it's hard to tell when the scope is running and when
it's waiting to run again.
Once activity has been displayed, the center frequency can be easily changed
using the arrow keys or rotary control. You can even enter an entirely new
frequency using the keypad. But using the arrow keys or rotary control allows
displayed signals to be put under the center marker and thus have their
frequencies identified.
HF Performance
I next decided to see how well the X2000 did on MW (AM broadcast). The results
were not promising. In short, the AR8200 with its diminutive MW antenna easily
outperformed the X2000 using a 19 inch whip antenna.
While this initial testing was not good, it was not to be indicative of the
rest of HF. Testing against the same AR8200 MkII proved that the X200 was the
clear winner on all frequencies. The X2000 is very sensitive on HF making the
bigger challenge one of selecting the right antenna and judicious use of the
attenuator to avoid signal overload.
Tuning the HF bands was enjoyable with this sensitive receiver. SSB reception
was good as well when combined with the small tuning steps and squelch fully
opened. The only real problem was the lack of a narrower AM filter when the
bands got crowded with strong signals. This omission is strange given the
offerings of it two, main competitors.
VHF/UHF Performance
The good news is that nearly a third of those found were above 1 GHz. Of those
which may impact some listeners, one birdie was found in the VHF aero band,
three were found on VHF-hi and one more was found in the 452s. And none were
found in the 800s.
For the next test, I removed the stock antenna and replaced it with the 19"
whip I usually use while testing at home. Sweeping the 30 to 1300 MHz range, I
compiled a list of all frequencies on which images or intermodulation was
detected. The overall results were very good, especially when considering the
wide receive range.
It was now time to put the X2000 up against AOR's leading handheld to see who
would come out on top. Testing consisted of comparing both radios on the same
frequencies using the same antenna. The range of frequencies tested spanned
from 42 to 937 MHz and AM, FM and WFM modes were used. Here are the results:
Considering the results, the X2000 proves it is a very sensitive radio but it
is just a step behind the AR8200 MkII overall. There's not a real big
difference between the two and some users might not even hear the difference,
depending on which bands are most listened to.
Ranking
While the X2000 does not have all of the "tweakable" features of its main
competitor, AOR's AR8200 MkII, it does come close. One thing is sure, it is
much easier to use than AOR's model due to the menu system. But this ease of
use is paid for by having to slog through several levels of menus at times
which can be bothersome. In the end though, ease of use is the key target and
Alinco has definitely hit the mark. The built-in help system is also to be
applauded.
No one radio can please everyone and that explains why so many of us have more
than one model in our collections. But the X2000 is the latest attempt at being
a do-it-all choice for those who can afford its luxuries. It definitely scores
top marks in construction, ergonomics, audio, feature set, memory capacity and
most importantly, performance.
At the very top of the to-do list is the poor scan/search rate. Many potential
buyers will love the X2000 for its wide frequency tuning and massive memory
capacity but wonder what is it all for when it's light years behind its
competition in terms of scan/search speed. If the user is to keep abreast of
the variety of signals they wish to monitor or sweep a frequency range for new
hits then they must have a piece of equipment that can keep up.
Billed as the "intelligent" receiver, Alinco surely can not be faulted for
false advertising when you consider all it can do and how well it scores
overall. And let's not forget that the price of admission, while high, is
definitely a value when all things issues are considered and the X2000 is held
up to the competition's offerings.
While there is always room for improvement, the X2000 would make a worthy
addition to any listener's monitoring arsenal. Used to its full potential, the
DJ-X2000 would make any owner beam with pride.
Recommendations
Relatively equal in price, the buyer must turn to a comparison of features,
ergonomics and performance to select the radio that best suits their needs.
The X2000 would surely win the "best built" category with the AOR and Yupi
tying for second place. The X2000 and AOR would win out over the Yupi in terms
of portability and "stealthiness" due to their much smaller size. The Alinco
would also gain a few more points due to its thin profile.
In the audio category, I would have to give the nod to the 9000 with the Alinco
in second and the AOR third. The 9000 would also win best LCD, keypad and
backlight. The AOR's LCD is bigger than the X2000 which makes it easier on the
eyes as well as a slightly better and much brighter backlight.
While the 9000 would win in the HF reception department, the Alinco wouldn't be
far behind with the AOR drawing up a distant third. The X2000 is definitely a
winner on VHF/UHF and tied with the 9000 but the X2000 has fewer birdies and
fewer problems with overload. The AR8200 is less sensitive than either but has
very good interference rejection. The AOR is also the clear winner when it
comes to receive modes with the Yupi in second and the Alinco in a close third.
The non-US X2000 and 9000 come with a standard descrambler while it is a pricey
upgrade on the AR8200. A similar wallet hit is needed to add CTCSS capability
to the AOR and it's not even an option on the Yupi while the X2000 is good to
go right out of the box. Once again, a separate slot card is needed to add the
digital recorder to the AOR while the Yupi has none. Even worse, you have to
power down the radio and swap cards to get the descrambler, CTCSS decoder and
digital recorder on the AOR!
One of the big clinchers is that the Yupi has no computer interface which is a
BIG turnoff to some buyers. AOR definitely has the lead in this category due to
the number of programs that supports its interface while Alinco remains
secretive with the X2000's protocol. Both AOR and Alinco offer freeware for
their radios right on their web site but Alinco's offering is much more stable
than what AOR offers.
Alinco definitely takes a hit when comparing scan/search speeds but partially
redeems itself thanks to the frequency counter and other RF features which are
unmatched thus far. Kudos to the Alinco designers for also adding in true FM
stereo capability and two-level attenuator.
Most new users will likely find the X2000 easiest to use out of the box with
the 9000 in second place and the AOR falling way back there. The Alinco manual
is quite comprehensive (as is AOR's) but suffers in comparison when it comes
to organizational structure. And I won't even get into the mess that Yupi
passes off with their fine receiver.
When all is said and done, it's no easy choice picking between these three.
There is still no one radio which does it all and there likely never will be.
It therefore remains to each buyer to make a list of all important categories
and rank each radio accordingly to see which comes out on top for their
particular needs. That is, unless you have money to buy them all!
If you are interested in ordering one of these radios or simply want more
information, please stop by the
Javiation web site
or write Jonathan at
info@javiation.co.uk.
If you look quickly, you'll think you're looking at the older DJ-X10. They are
housed in an identical case and use the same color scheme and materials. All
that's different between the two are a handful of markings. The Alinco label
has been moved from above the speaker to just below the LCD. The X10 tag at
the very bottom has been replaced with a microphone pickup and DJ-X2000 is
found just to the left.
Surprisingly, the antenna supplied with the X2000 is physically different from
the one supplied with the X10. Roughly 1.5" longer, it is the same basic shape
but the base coil is covered in a smoother and longer plastic cover.
Here is a list of features which were added to the X10 to create the X2000:
Here is a list of features which were changed for the X2000:
Here is a list of features which were removed from the X10 to create the X2000:
As mentioned earlier, the X2000 has a very solid feel to it thanks to its
amateur radio HT heritage. This quality feeling extends to the controls and
keys as well. The only real control is the rotary dial on the top panel and
it's a good size with very nice feedback when turned. Unfortunately it's not
the most precise since it can easily skip or miss "clicks" which is very
frustrating.
With more and more features being crammed into today's radios, manufacturers
have turned to a menu system to alleviate the task of overburdening the keys
and the functions they perform. A typical menu system is like the menu bar
found in most software programs which groups functions into a hierarchy. All it
takes is some time to familiarize yourself with where to find everything.
Like any good communications receiver, the X2000 comes with a VFO which is used
to tune to any frequency you desire and then manually configure various
settings. In fact, the X2000 has two VFOS, A and B, which appear on the two
lines at the bottom of the LCD.
The X2000 contains some interesting features which set it apart from all other
receivers in its class. And I'm sure it will "raise the bar" when it comes time
for Alinco's competitors to think about their next offerings.
When the DJ-X10 was released, many thought it overkill that it provided 1200
memory channels. While that number was likely chosen to assume bragging rights
and outdo the competition, Alinco was smart enough to organize all of this
memory into a very useful configuration.
With the memory contents programmed accordingly, it's now possible to put the
X2000 through its paces where scanning is concerned. While Alinco likes to
refer to all frequency operations as scanning, I like to break them up into
scanning (of pre-programmed memory contents) and searching (of a specified
frequency range).
For exploring portions of the spectrum for new signals, the X2000 comes with
three types of search options: VFO, VFO range and limit. As was mentioned
earlier, the Alinco manual refers to all operations as scanning while this
review differentiates between searching and scanning.
The priority function on the X2000 consists of a single location which holds
one frequency of your choice. This can be a frequency of your choosing or one
of the 2000 memory channels. Once enabled, the priority operation will sample
this frequency at regular intervals for activity regardless of whether the
radio is scanning, searching or VFO mode.
What would a high-end model be without a band scope? Alinco likes to call it
Channel Scope while using a key labeled SRCH (for searching) to activate it.
Regardless of what it's called, it's the same function that is found on the X10
and allows a graphical plot of a small piece of the frequency spectrum to be
displayed on the LCD.
The first test was for birdie frequencies to see how well the internal
circuitry was shielded from spurious emissions emitted by the radio itself. The
results were very good with only 6 such frequencies detected. And these were
only in two groups of three consecutive frequencies.
Again we started testing of this part of the spectrum by searching for birdies
in the 30 - 1300 MHz range just like we do for all radios. Results were good
but not outstanding. The total number of birdies found was 41 with 13 on VHF
and 22 on UHF.
Freq X2000 8200 42 1 2 60 2 1 72 1 1 88 2 1 101 2 1 107 - 1 117 1 1 124 1 1 127 1 1 132 1 1 147 1 1 155 1 1 162 1 2 221 2 1 308 1 1 410 1 1 450 1 1 453 1 2 460 2 1 462 2 1 851 1 1 857 1 1 863 1 1 936 2 1 937 2 1
Category Score Out of Sensitivity 25 25 Selectivity 15 15 Interference rejection 20 20 Coverage 90 90 Channels 15 15 Channels per bank 15 15 Ease of use 20 20 Scan/Search speed 0 10 Receive modes 15 15 Step sizes 25 25 Conversion 10 10 Audio 20 20 Antenna 10 20 Construction 20 20 Size 10 15 Search 30 35 Attenuator 20 20 Auto-store 20 20 Search frequency lockout 15 15 Backlight 25 30 Alpha-tagging 20 20 VFO 10 10 Squelch tail 0 10 Priority 15 20 Delay 10 15 Hold 10 10 Rotary Control 10 10 S-meter 10 10 Power-on resume 10 10 Computer Interface 10 20 Tone Decode 10 15 Battery indicator 10 10 Channel count 0 5 Tape record control 0 5 Clock 0 5 Timers 5 5 Weather programmed 0 5 Weather alert 0 5 Data skip 0 5 Bank delete 5 5 Bank sort 0 5 Total 555 670 Total 83 100
Summary
Alinco has definitely served notice to their competitors that they are aiming
to be the top dog in high-end handheld market. Combining great performance and
construction with mucho memory data storage, a desirable list of features and
an innovative design and execution, the X2000 is sure to top the wish list of
many hobbyists. Even though it is priced outside the reach of many, this is to
be expected of such a new and advanced model but even so, considering all that
is packed into this small case it is still a great value.
For those in the US, the X2000's only real competition comes from AOR's latest
AR8200 MkII. Outside the US, buyers must also consider Yupiteru's second
revision MVT-9000 and its silver livery.
Copyright © 2010 by Richard J. Wells
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