Motorola Maxtrac 300 Programming Software
Motorola Radius Programming Software
Motorola Radius Gm300 Radio
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• GM300 Mobile Radios Operating Instructions. •, Motorola, Radius, RapidCall, Private-Line, Digital-Private Line, and Touch Code are trademarks of Motorola, Inc.

• GM300 Mobile Radios Computer Software Copyrights. 2 Introduction. 3 Features List. 3 Radio Self-Check. 3 Dealer Programmable Features. 4 Field Programming Capabilities.

4 RapidCall Signalling. 4 Time-Out Timer.

4 Accessories. 6 Operating Instructions. Steinberg key usb elicenser emulator. 7 8 Channel Operating Instructions. Furthermore, the pur- chase of Motorola products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents, or patent applications of Motorola, except for the normal non-exclusive, royalty fee license to use that arises by operation of law in the sale of a product.

• 5 second warning tone unlike the chirp tone nor- mally heard at power-up. This is an indication that the radio is no longer operating at the exact parameters set in the factory or by a Motorola Radius dealer and should be serviced immediately. • Dealer Programmable Features Field Programming Capabilities The Radius GM300 mobile uses non-volatile memory to store customer unique information. If a frequency, squelch code or channel-slaved scan list needs to be changed, it can be done at a service location with Radio Service Software (RSS). • GM300 Mobile Radios Accessories Radius offers several accessories to increase communications efﬁciency. Many of the accessories available are listed below, but for a complete list, consult your Radius dealer. Antennas: HAD4006_R VHF 136-144 MHz, 1/4 wave roof mount HAD4007_R VHF 146-150.8 MHz, 1/4 wave roof mount HAD4008_R VHF 150.8-162 MHz, 1/4 wave roof mount HAD4009_R.

• Accessories Control Station Accessories: HKN9088_R Mini-U Antenna Adapter with 8 ft. Cable (WSAPD) HLN5292_R Base Tray for Control Station HMN1038_R Desk Microphone (beige) HMN3000_R Desk Microphone (black) HKN4139_R Low Power Control Station Power Cable (1-10 W/10-25 W models) HKN9455_R High Power Control Station Power Cable (25-45 W models) HPN4001_R Power Supply and Cable (25-40 W models) HPN4002_R.

GM300/M120

General Information

The GM300 and the M120 are the same series of radio. The M120 is just the limited version, not unlike the Maxtrac 50 compared with the Maxtrac 300.

Look here for the pinout of the accessory connector for the 8 channel radio (which use a masked logic board) or 16 channel radio (which use an expanded logic board).

If you want an easy way to connect to the Accessory Connector on these radios, you can order the HLN9242A or HLN9457A Accessory Connector kits. These include an accessory connector housing, some pins, and some wires with pins already attached. One thing to note, the HLN9242A kit also includes a pin extractor for removing previously installed pins.

Here is the pinout of the microphone connector.

Are you having problems getting your radio to power up? Well, check here for some information that might help.

This radio can decode and display up to 126 PTT IDs. But how, you ask, since it only has a 2 digit display? It encodes (in HEX) the first two numbers of the PTT ID. See below:

Good luck in adding scan to a GM300 8 Channel radio, tried it by editing the .mdf file, and the RSS just crashes when you try to load a codeplug. You may find that the radio already has user-selectable scan, enabled off the front panel. Try it and see if it works.

If you happen to mess up the codeplug in your radio, and for some reason consider it necessary to make it into a Maxtrac... you can follow this procedure to do the conversion.

If you want to build a nice little programmer for the GM300/M120 radios, one that does not require a RIB, check out this link. Just connect the BUS+ and GND wires from the circuit to the appropriate pins on the microphone connector as shown in the programming cable schematic. You can also check the RIB page for some additional circuits.

Linking Radios for Repeater/Crossband Operation

If you need a repeater interface cable to connect a couple of GM300, M120, or M10 radios together, look here.

Need to connect a couple of GM300 radios together? Here is a schematic of the R.I.C.K. (Repeater Interface Controller Kit) to get you started. Order the service manual part number 6880901Z79 from Motorola. Note: If you try and print this schematic with your brower, it probably won't work. So, save the image and print it using a graphics program.

9600 Baud Packet Modifications

The GM300 Series are 9600 baud packet capable. They do need a minor modification though. For RX, its no big deal, just take RX audio from PIN 11 of the Accessory Connector and swing JU551 to the (A) position (Flat RX Unmuted).

For TX audio, you will have to run a jumper to the junction of R223, C228, R222 on the RF board to inject the data (if applicable you may need to set the deviation pot in the radio to maximum). You might want to put a pot on your TX line somewhat like the setup Motorola uses (voltage divider) to adjust the deviation.

It would be wise to do some measurements to make sure you have the deviation correct. You might also want run the RX and TX pins to the unused pins on the front mic connector after the mods are done.

Out of band programming

To program frequencies outside of the rated bandsplit in the GM300 can be very simple, follow the listed steps:

Hold the shift key down while entering the frequency you want
You MUST release the shift key when you enter the decimal point
You MUST fill the entire field -use zeros (while holding down shift)
When you are done, hit enter like normal, and the frequency you entered will appear in regular decimal like any other frequency.

If you are in need of the programming cable, look here.

Out of band by modifying the .MDF file

There is another method of programming the radio out of band, it is a little more complicated than the method described above, but it will work just fine.

In the GM300.MDF file make a Checksum-16 of the whole file (the F12 option in Hex Workshop), in our case we ended up with 0x5D53 (RSS V 05.00), write this down, you might need it later.

Look starting at about offset 0x2AC, you should see something like:

The highlighted area contains all the possible bandsplits that a GM300 could be.

A single bandsplit entry looks like:

The bytes to take note of are:

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05 00 = Bandsplit identifier (Note: the bandsplit identifier is at the end of the frequency list)

94 11 = 4500 in decimal, ie 450.0000 MHz

5C 12 = 4700 in decimal, ie 470.0000 MHz

Motorola Maxtrac 300 Programming Software

Note there are 3 occurances of the strings 94 11 and 5C 12, the first set is the limits displayed in the Radio Wide menu (F4-F2). The second set are the TX limits for the radio. The third set are the

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