The M120 radio is just about the same as a GM300 but has 'less features' - this would be the 2-channel version, equivalent to a MaxTrac 50. There is also an M10 single-channel radio, and an M130 2-channel radio that is an M120 with the GM300's signaling capabilities. Cheap Sale Buy Online Home Motorola Maxtrac Programming Software Download. GM300 Radio Doctor Programming Software GM300 OD for Vista.

Programming / Service software for the Motorola Radius GM300 It has been pointed out to me that this software only works with the GM300 so I have adjusted the page. After searching for the genuine Motorola program I came across Motorola Radius GM300 Radio Doctor. This program runs fine under Windows XP and will do all the functions that the genuine Motorola radio service software does.

Here is the main screen. See a video of the software in use If you want a copy of Motorola Doctor software just join the following group You will also need a simple interface to connect the radio to your PC. You can make your own or just search on Ebay for 'GM300 programming' or make programming interface from below 'at your own risk' GM300 programming connection When looking at the radio here are the numbers As you can see to make the programming interface for your GM300 is very basic. Connection your Motorola GM300 for Echolink or IRLP etc. If you want to use the COS/COR output from your GM300 the COS/COR on pin 8 is (active low). Many interfaces need a COS/COR input that is (active high) at 2 to 5vdc.

You can make up a circuit to convert the output from pin 8 or take a COS/COR output from inside the radio that will give you a (active high) output. You will need to access the logic board on the underside of the radio.

Remove the front of radio and the bottom cover and lift off the RF shield. See photo below. If you use thin wire you will be able to feed this out the edge of the 16 way connector.

I tied a knot round the connector on the board to stop it being pulled off the board. Take care not to short this COS/COR out because it will damage the radio.

Motorola GM300 Programming - FJ45.COM FJ45.COM Tip on using the RPC-M300 '3 in 1' programming cable: I was inspired to create this page because I got a programming interface for a GM300 which came with no documentation. I ordered the interface off of eBay and it came with no documentation and I would later learn that the interface requires a 9 volt input to work. I started out with a GM300 radio, it came to me with no documetation about the radio and how to use it and no documentation on how it was currently programmed.

I only knew that it was programmed for the HAM bands. I used a frequency counter and guessed based upon the standard repeater offset what the receive frequencies were. However this did not give me any information on what if any CTCSS tone programming had been done on thoe frequencies. I joined the Yahoo Group and downloaded the Radio Doctor software from the files section of the Yahoo Group. I also ordered from eBay a '3 IN 1 Programming Cable' which is an RPC-M300 or a clone of that unit (see photos below to find a similar unit) which had the RJ-45 Crystal plug or whatever Motorola calls their RJ45 connector on the GM300 radio. The '3 IN 1 Programming Cable' shipped from China and arrived within a few days of the estimate in the eBay listing. The Interface came with no documentation at all.

I contacted the seller with specific questions about how to connect the interface and whether the red and black wire-pigtail on the adapter also required power and if so how much power. They replied with a semi-coherent reply which essentially told me that it was radio and the PC. They did not in anyway answer my question. I bit of digging and I found on web site an answer; these '3 in 1 programming cable' units require a nominal 9 volts DC to the red and black pigtail.

Once I applied power to the pigtail the Radio Doctor software worked as it should and I was able to retrieve the radio's configuration and figure out which repeaters were still current and which ones were not. With the power applied to the red & black pigtail the Radio Doctor software worked just fine.

Autodesk maya 2009 portable download. Be aware that the Motorola pin numbering convention on the RJ45 connector is the reverse sequence from the standard pin numbering convention. Lira sapr 2015 torrent software. So if you make your own cable make sure to use the Motorola pin numbering convention. Very helpful GM300 web sites: • • • • • FJ45 Webmaster.