| MVT-9000 Owner's Guide |
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Introduction In an effort to better understand the operation of the Yupiteru MVT-9000 and to offer a valuable resource to other people who may be using this wonderful radio, I wrote this owner's guide. It does not hurt that the originally supplied manual that comes with the radio is just a step up from having nothing at all. The translation is terrible and there are lots of errors and omissions which only serve to further confuse the English reader. This guide goes through the operation of the MVT-9000 in a step by step process starting with the basics and builds up to the operation of the more advanced features. Feel free to make copies of this document and distribute as you see beneficial to the radio monitoring hobby. I simply ask that this information be kept intact. A lot of hard work and effort has gone into the writing of this guide. I would appreciate it if every effort is made to keep this document whole with me as the original author. If you would like to share your thoughts about this owner's guide, have suggestions for its improvement or have further questions, feel free to send me e-mail. Happy reading and strong signals!
Rich Wells |
If the radio is being used with standard alkaline batteries, do not use the AC or car power adapters. External power should only be applied to the radio when it has been equipped with rechargeable batteries or the batteries have been removed from the radio.
| Bank | Channels | Key |
|---|---|---|
| A | 0 - 49 | 1 |
| B | 50 - 099 | 2 |
| C | 100 - 149 | 3 |
| D | 150 - 199 | 4 |
| E | 200 - 249 | 5 |
| F | 250 - 299 | 6 |
| G | 300 - 349 | 7 |
| H | 350 - 399 | 8 |
| I | 400 - 449 | 9 |
| J | 450 - 499 | 0 |
| a | 500 - 549 | .1 |
| b | 550 - 599 | .2 |
| c | 600 - 649 | .3 |
| d | 650 - 699 | .4 |
| e | 700 - 749 | .5 |
| f | 750 - 799 | .6 |
| g | 800 - 849 | .7 |
| h | 850 - 899 | .8 |
| i | 900 - 949 | .9 |
| j | 950 - 999 | .0 |
| P | 1000 - 1009 |
A feature allowing you to create your own labels and assign them to various resources for easier identification. The MVT-9000 allows you to name memory banks, memory channels and search bands. There is also a message which is displayed when the radio is powered on which is also customizable.
A device which is used to diminish the strength of an incoming signal. This is typically used to alleviate overloading of the front end radio circuitry by very strong, and usually nearby, transmissions. The MVT-9000 allows you to set the attenuator for individual memory channels as well as while performing a search.
A feature allowing activity on adjacent frequencies to be displayed using a graphical representation. The MVT-9000 has a special marker function which can be used to aid in the numeric identification of adjacent frequencies as well as listen to them.
A lot of radio systems use one frequency for transmitting and another for receiving (usually the inputs and outputs to a repeater site). The difference between these two frequencies is referred to as the duplex shift width. The MVT-9000 allows this shift width to be programmed so that these two frequencies can be monitored easily with a simple keypress.
The MVT-9000 has a feature called index which allows a paused scan or search to resume after a fixed time. Normally, during a scan or search, if an active transmission is detected, the scanning or searching operation will be paused until the transmission ceases. Once the transmission goes away, the scanning or searching operation resumes. If you have the index feature enabled, scanning or searching will pause on an active transmission for at most 4 seconds before resuming.
An association of memory channels. This radio has 20 memory banks (A-J & a-j). Since it also has 1000 memory channels, this means there are 50 memory channels per memory bank.
A location used to store a frequency and its associated settings such as receive mode, attenuator, duplex width and alpha-tag. The MVT-9000 has 1000 memory channels which are divided into 20 banks.
Normally, the MVT-9000 will automatically round frequencies down to the closest integral frequency of the current step size. For example, if the step size were 5kHz and you were to enter 155.502MHz, the radio would round this to 155.500MHz (an integral multiple of 5kHz). If you wish to override this safety precaution, the OFFSET feature is used so that frequencies are kept exactly as they are entered.
Refers to scanning and searching operations. A memory channel can be passed so that it is not checked during a scan operation. A frequency can be passed so it is not checked during a search operation. See Scan Pass and Search Pass for more information.
This radio comes already programmed with regard to the receive mode, step size and duplex shift width that will be used dependent on the active frequency. When you key in a frequency, the radio will automatically select a receive mode and step size based on the range your frequency falls in. You will find a number of places where this data is not correct due to differences in national frequency bandplans. When the radio is in its "auto" mode, the PRESET indicator will be visible in the LCD. If you manually change the receive mode or step size from these auto settings, the PRESET indicator will disappear.
- NOTICE : It appears that units shipped for sale outside of Japan do NOT come with the PRESET feature. Unless you purchased this radio in/from Japan, you will have to ignore sections of this guide which pertain to the PRESET feature since your radio will NOT have it.
Special memory channels that can be checked on a periodic basis for active transmissions. These are usually programmed with very important frequencies that you do not want to miss activity on. The MVT-9000 has 10 priority channels which are collectively referred to as bank P.
The method by which radio transmissions will be demodulated so that the resultant audio portion may be directed to the speaker. Available receive modes are :
| Mode | Type | Services |
|---|---|---|
| AM | Amplitude Modulation | below 30MHz, amateur radio, commercial and military aircraft |
| NAM | Narrow AM | mainly used below 25MHz |
| FM | Frequency Modulation | most VHF/UHF communications |
| WFM | Wide FM | for FM radio and TV audio |
| USB | Upper Sideband | mainly below 25MHz & amateur radio bands |
| LSB | Lower Sideband | mainly below 25MHz & amateur radio bands |
| CW | Continuous Wave | amateur radio Morse code |
Most receivers refer to this feature as channel lockout. Once a frequency has been programmed into memory, a scanning operation will stop on this channel if an active transmission is detected. Certain frequencies may contain transmissions which are very or always active. To keep the scanning operation from stopping on these channels, they can be locked- out/skipped/passed during a scan.
The act whereby memory channels are successively checked for active radio transmissions of their programmed frequencies.
A feature which allows a pre-defined frequency range to be programmed so that it can be repeatedly searched for active transmissions. Stored with each search band are a starting frequency, ending frequency, receive mode, step size, attenuator, alpha-tag and more. The MVT-9000 has 20 search bands.
Some receivers refer to this feature as search-skip. If you have a known frequency which you would like to skip while performing a search, it can be placed in a special memory. Yupiteru refers to this as the Search Pass Memory. Once placed in this memory, this frequency will not be tested for an active transmission, or in other words it's skipped/passed when performing a search. The MVT-9000 has 500 search pass frequencies.
The act whereby a frequency is incremented or decremented successively to detect active radio transmissions in a given frequency range. Searching is usually performed on a programmed Search Band.
A value in Hertz (Hz) or kiloHertz (kHz) that indicates the amount by which a frequency will be changed due to user or radio control while searching for active transmissions or using a VFO. Available step sizes are :
| Hz | 50/100/200/500 |
|---|---|
| kHz | 1/5/6.25/8/9/10/12.5/15/20/25/30/50/100/125 |
A feature used to graphically represent the strength of the signal being received. It is usually calibrated to a dB (logarithmic) scale. A bar graph is used where more bars indicate a stronger signal.
A temporary location to store a frequency so that a memory channel does not have to be programmed. Associated with this frequency are various settings such as receive mode, step size, attenuator, preset, offset, etc. The MVT-9000 has 2 VFOs (A & B).
The radio is in Bandscope mode when the bandscope is displayed at the bottom of the LCD in place of the bank/band name and S-meter. This is a sub-mode of VFO, Memory, Scan and Search modes.
The radio is in Marker mode when the CENT and MARK indicators are displayed along with the bandscope display. This is a sub-mode of Bandscope mode.
The radio is in Memory mode when a memory channel number is visible in the upper left corner next to the CH indicator. Pressing the MR key toggles between Memory and VFO modes.
Priority mode is enabled when the PRI indicator is visible. This is a mode independent of the VFO, Memory, Scanning or Searching modes.
In this mode, the scanning operation checks the specified banks for active transmissions on the programmed frequencies within those banks. There are three scanning modes with three scanning sub-modes for a total of nine different types of scan that can be performed.
- The three modes are :
- Continuous : scanning of all non-empty banks
- Bank : quick and dirty scanning of up to four banks
- Select Bank : scanning any combination of the 20 banks
- The three sub-modes are :
- Normal : a normal scan
- Mode : scans only those channels with the specified receive mode
- Program : scans only those channels which have been program tagged
- This gives us the following nine scan mode types :
- Continuous Normal
- Continuous Mode
- Continuous Program
- Bank Normal
- Bank Mode
- Bank Program
- Select Bank Normal
- Select Bank Mode
- Select Bank Program
In this mode, the search bands (A-J, a-j) used to perform searches are programmed with starting and ending frequencies as well as step sizes and receive modes.
In this mode, the searching operation checks for active transmissions on the frequencies in the specified search range. There are three searching modes and two searching sub-modes for a total of six different types of search to be performed.
- The three modes are :
- VFO : starts searching from the current VFO frequency
- Band : quick and dirty search of up to 4 search bands
- Select Band : searching any combination of the 20 search bands
- The two sub-modes are :
- Normal : a normal search
- Auto-Store : stores active transmissions in Bank j
- This gives us the following six search mode types :
- VFO Normal
- Auto-Store
- Band Normal
- Band Auto-Store
- Select Band Normal
- Select Band Auto-Store
The radio is in Search Pass mode when a blinking P indicator is visible and the contents of the Search Pass memory are being displayed.
The radio is in VFO mode when VFOA & VFOB are displayed. Pressing the MR key toggles between VFO and Memory modes.
| Mode | Step | Standard | Narrow |
|---|---|---|---|
| Not WFM | 25kHz | 65 | 33 |
| Not WFM | 30/50kHz | 33 | 15 |
| Not WFM | 100kHz | 15 | 15 |
| Not WFM | 125kHz | 13 | 13 |
| WFM | 25kHz | 65 | 33 |
| WFM | 30/50kHz | 33 | 33 |
| WFM | 100kHz | 15 | 33 |
| WFM | 125kHz | 13 | 33 |
NOTE : Priority channels can not be copied to the VFO.
NOTE : Memory channels can not be copied to priority channels and vice versa.
NOTE : When all channels have been erased from a bank, the alpha-tag for that bank will also be erased.
NOTE : When in Memory mode, duplex shifting is enabled or disabled for all channels.
NOTE : The duplex frequency can not be received for a memory channel which has PRESET on.
NOTE : Be sure to see the disclaimer for PRESET in the Definitions & Terms section of this guide.
NOTE : Priority channels can not set scan pass.
NOTE : Priority channels do not support program scan and therefore can not be tagged.
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Copyright © 2001 by Richard J. Wells Last updated December 31, 1999 |
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