The above series of radios all use similar internal computer control boards and the same RSS package. For this reason they are all contained in the same file.

NOTE: In regards to the Visar's, there is NO way to make them have more than 16 channels. Yes, we know the display looks pretty, and that must surely make the rest of the radio capable of 99 channels. WRONG! There is barely enough codeplug space to handle 16 channels with all the options, let alone any more. There is no provision in the radio's hardware or software to support any more than 16 channels.

How to program frequencies outside of the radios rated bandsplit

How to convert 2 and 8 channel HT1000's to 16 channel radios

The JT1000 Programming Key

Programming the JT1000 Out of Band

HT1000/JT1000 Programming Cable

HT1000/JT1000 Service Cable

Visar Programming Cable

Visar Accessory Connector Pinout

Visar Model Chart

If you have the accessory adapter for the side connector on the radio, the typical schematic of the speaker mic looks like this.

How to program frequencies outside of the radio's rated bandsplit:

This series of radios generally performs quite well outside of the standard rated bandsplit. Out of band programming can be quite useful. One such example would be the 450 to 520 split, with out of band programming you can use the radio in the 440 Mhz HAM band. Programming the radios outside of the bandsplit is very simple and requires no special software or hardware, all that is required is the standard Motorola RSS package (some versions may not allow the following thought). To get out of band frequencies follow the listed steps:

• Hold down the SHIFT key while entering the frequency you want (use the numbers along the top of the keyboard)
• You must fill the entire field with characters (add zeros until you've filled the field)
• Then press enter to goto the next field, it will display the frequency normally
• That's it!

How to convert 2 and 8 channel HT1000's to 16 channel radios:

All Visars and JT1000's are 16 channels, if yours has less you need to enable them using RSS.

The HT1000 is a different story though. The easy part of the conversion to 16 channels is to remove the channel selector knob, if you remove the notch on the knob you will then be able to rotate it all 16 channels.

The next step requires a HEX editor which you will use to edit the saved file (code plug) from your radio. Norton disk editor or Hex Workshop will do the job. Please only proceed if you are familiar with HEX editting!!! As well, you may want to keep a saved file in a different directory (then it will be easy to restore the radio to its original state). The steps listed below detail what to edit.

• Load the saved file into a HEX editor
• Ensure the editor is in overwrite mode, not insert mode
• Locate the byte at offset 0x27

• The value should be 0x01 for a 2 channels, 0x07 for 8 channels or 0x0F for 16 channels
• Change the byte to 0x0F

• Save the file and go back into the RSS
• When you load the file into RSS you will now have 16 channels
• Simply program them as if they were always there and load it into your radio.

The JT1000 Programming Key

As you are probably aware if you are a JT1000 owner, to program your radio you either need to do it via RSS or have a programming key. Motorola would like you to believe that the programming key is some hi-tech device, but as typical of Ma M, it isn't. Click here to see what is inside the JT1000 key.

If you really want to program without a key there is a way, but it will void your warranty as well as create some other problems. If you open your radio and solder the diode inside the radio you will be able to program off the keypad BUT you CANNOT use a speaker mic (if you do it will be permanently keyed down). If you really want to do some hacking around you inside the radio you could rewire the concentric switch so that instead of it being the keypad lock, have it put your diode across the accessory connector, just remember to take your speaker mic off when you want to go into programming mode.

Another note for programming using the key, it seems you can't program outside of the bandsplit of the radio, you'll have to use the RSS for those frequencies.

Programming the JT1000 Out of Band

To program the JT-1000 to be able to be field programmed out of band:

(For a UHF radio, but can be easily modified for other bands/splits) This is assuming that you want to make a 450-520 radio into a 440 (or lower) radio.

• Make a backup copy of the archive.
• Load the archive into your hex editor.
• Change byte at offset 0x06 from 53 to 52 (S to R)

Start your properly purchased and licensed copy of software RVN-4098G, version 03.02.01 or higher.

• Load the archive (F3-F3 from the main menu)
• Go to the JT-1000 option screen (F4-F3-F2-F3 from the main menu)
• Adjust the Freq. Range low limit to the low side that you want (the lowest it will go is 403.0000)
• Save the archive (F3-F7 from the main menu)
• Exit the RSS.

Load the archive into your text editor

• Change the byte at offset 0x06 from 52 to 53 (R to S)
• Go back into the RSS and program the radio with the modified codeplug.

The radio will now be able to be field programmed with out-of-band frequencies. Note that if you have a frequency out of the original programming band, and you load the archive and go to modify the frequencies in the RSS via F4-F4, it will give you an error. Ignore it. If you say OK, it won�t change anything.

Visar Model Chart

Below is a list of currently available Visar models as specified in the service manual:

Please note, in the above model numbers, the second to last digit refers to the version of the radio. "A" would denote the original version, "B" would be the next version of the radio released, and so on. I believe in most of the radios now have a "D" version released.

If you have any problems, email us and we'll try to help.

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