Motorola Gp300 Gm300 Software
Name motorola m1225 programming software file size 14 mb date added january 8, 2013 price free operating system windows xp/vista/7/8 total downloads 1416. 3 in 1 programming cable for motorola gp300 gp68 gm300 radioshop888 rt roip1 rt roip2 repeater controller zello mic voice over ip two way radio earpiece. Free software gm300 download software at UpdateStar. » rss software motorola gm300 windows 10. » gm300 programming software » cps gp300-gm300 version 4. 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. Here's a front view photo of a 16-channel MaxTrac, a 16-channel GM300, and a 2-channel MaxTrac: Maxtrac Index Motorola index Home page Motorola GM300 Information Page By Robert W. Jun 01, 2017 The Motorola GM300 can be re-programmed quite easily to allow use on our Amateur Radio. Click below to download. The Motorola MaxTrac, Radius, GM300. The GM300 Radio Doctor piece of software did a good job at being able to program this ancient. Document/File: motorola-radio-doctor-gm300.pdf, filesize: n/a. Motorola GP 300 Dos RSS programming software (R07.00.00) Motorola GP 350 Dos RSS programming software (R08.01.00). Band for HT50 / P100/ P110 / GP300 / GM300.
- Motorola Gp300 Gm300 Software
- Motorola Gp300 Gm300 Software Update
- Free Gm300 Software
- Motorola Gm300 Software
GP300
Radio Programming,
8 to 16 channel expansion.
RIB-IVG (Radio ProgrammingInterface)
Introduction.
The Motorola GP300 can bere-programmed quite easily to allow use on our Amateur Radio bands. The radio is made inboth a VHF and UHF versions, and makes an excellent 2mtr or 70cms portable radio.
Most of the radio's I have worked onhave originally been 8 channel units. These can be modified to operate on 16 channelsquite easily.
The programming interface can bemade for a low cost. All it consists of is a RS232 to TTL level converter, that connectsbetween the serial port of your PC and the radio.
Amateur Radio Conversion.
The radio requires theMotorola Software which can be found if you ask around or search for it on the FTP siteson the Internet. If you can't find it then try your local Motorola dealer who should beable to help at a small cost.
You also have to makean interface, or purchase one.
To program the radioonto the Amateur band, you can find some versions of software that have been hacked intoallowing frequencies to be entered to bring the radio into the amateur bands whichnormally are just bellow the original working frequency. However this depends on yourversion of software, if it's a un-hacked version then you have to press the <SHIFT>key down when entering the frequency. You must release the <SHIFT> key when enteringthe decimal point. For example to program 433.500MHz you will enter thefollowing: $££.%)) on a English layout keyboard. (This is 433.500 with the <SHIFT> held down. Fill all of the 0's in the frequencyfield. This example is the same for both the VHF and UHF GP300's.
16 Channel conversion. (for 8 channelradio's only)
To program the radio for 16 channelsyou need to first of all, pull the channel selector knob off the radio. On the undersideof the channel selector knob you will see a small black 'Stop'. Cut this offwith a sharp knife and replace the knob. You will now find the radio then switches 16positions instead of the original 8 channels.
To program the radio for 16 channelsall you need to do is edit a file called GP300.MDF. You do this with the help of a Hexeditor such as Hex Workshop This can be foundand downloaded on http://www.bpsoft.com
The file you need to modify iscalled GP300.MDF and can be found in the main directory of the Motorola software. Keep abackup of your original GP300.MDF file, just in case you make a mistake.
I have made a small video that showsthe Hex Workshop screen during the modification. This should help you understand theprocedure of editing the file which when complete will give you 16 channels. Click belowto download.
gp300mdf.zip(364Kb)
Procedure
Get a copy of Hex Workshop. ( http://www.bpsoft.com )
Start the Hex Workshop program and open the file GP300.MDF to begin editing.
Go to 'Tools', and the 'Generate Checksum'.
Make sure 'Entire Document' and also 'Decimal' are ticked. Then press 'Generate'.
Look in the 'Checksum-16' box, in my version of software for example, this results in a checksum of 53454 (yours may be a different number depending on the version of Motorola software)
Write this number down, as you need it later.
Press 'Cancel' to return to the main window and your next step.
Go to 'Edit' and then 'Find'. A pop-up window appears.
You need to enter the model number of your radio. For e.g. P93YPC00D2AB.
When you enter the model number leave off the last two letters(AB on my radio).Make sure 'ASCII' is ticked.
When you press 'Find Next', you will see your model number highlighted.
If you count 8 numbers after the highlighted section, you should see the number '08' as long your radio is originally a 8 channel set.
Edit the '08' to '10' (note 10 in Hex is equal to 16 in decimal).
You now need to edit the start of the program, to allow the software to run.
In the first few lines look for a Hex number that you can easily take away 8 from.
In my software at address 00000040 you will see the number '78' on the right.
Edit this to be '70'.
Now you must do a final checksum and make sure it equals the original value.
If this is the same, then replace you original file with the modified file.
Try to reprogram your radio with the extra 8 channels to give you 16 channels.
RIB-IVG(Programming Interface MkII) by G1IVG.
(withspecial thanks to Roberto EB4EQA for supplying the drawings below).
WARNING:
In order to build the interface described below, you will atleast require some basic electronics experience. If you don't understand, how thedescribed circuitry works, it's best not to build it. Although the described procedure isrelatively simple, you could cause serious problems to both your PC and your Motorolaradio. So please build the interface and use it at your own risk.
Pay attention to the polarity of the capacitors these are markedwith a + in the diagram next to each capacitor. You will find that in some cases thecapacitors appear to be the wrong way around, however this is not the case, as they mustbe configured this way to generate the correct voltages within the MAX232.
Interface Parts List.
Item Qty Description
- 1 PCB (Single sided prototype board)
- 1 IC MAX232
- 1 IC 7407
- 1 IC 7805 (5v regulator)
- 5 Capacitors 1uf, 16v electrolytic
- 2 Resistors 680 ohm 1/4 watt
- 1 LED Green
- 1 LED Red
Component Side View
Track Side View
Click here to download a zip file that contains
an AutoCAD 14 file
of the images above.
PC Connection.
In the interface drawing above youwill see the numbers 2,3,4,5 & 9. These numbers represent the 9pin serial port foundon most PC's today. If you only have a 25pin serial port then see below for the pin-outtranslation.
9 pin to 25 pin conversion information.
9 pin25 pin
2---------------------------3
3---------------------------2
4---------------------------20
5---------------------------7
9---------------------------22
Radio Connection (GP300).
To connect to your GP300, all you haveto do is temporarily connect your interface to the GND and BUS+ on the back of the radio.these connections are visible when the battery is removed.
You will also need a external 7.5vdcsupply to power the radio when you are programming it. This is connected between the 7.5volt and GND connection on the radio.
Notes:
If you have problems getting thisinterface to work on your GP300, then try replacing the two 680 ohm resistors that feedthe LED's. If you use 4.7k ohm it should work OK. I found that when using versionR01.00.00 software I have no problems with the 680 ohm resistors, but for some reason whenI ran the newer software (R08.02.00) I had problems reading the codeplug etc. All I havedone is replaced the 680 ohm with 4.7k ohm and it works fine now with both versions ofsoftware. You will have to experiment a little and let me know what resistors work foryou.
Simon VK4TSC encountered a problem where the GP300 beingprogrammed/read will fail to pass data to/from the computer with an Error #2 (Serial BusError). After checking the BUS+ line with a CRO it was found that the GP300 could notproperly switch the data bus, this being caused by the led/resistor combination onthe data bus drawing a little more current than the radio could supply. By changing theseries resistor to 1K ohm instead of 680 ohm the problem was overcome
The better solution maybe to use a spare gate fromthe 7407 to drive the led separately. Disconnect led cathode and link it to pin 4 of7407, isolate pin 3 of 7407 from 5V and link it to pin 2 of same chip. The original 680ohm series resistor can be left as is. BUS+ is now isolated from the data led.
The Interface design above has been tested on thefollowing radio's:
GM300 (Connect to the Mic socket on the front panel of theGM300)
GM350 (Connect to the Mic socket on the front panel of theGM350)
GP300 (See this page for info etc.)
Maxtrac 840 - 800 MHz Truncking Radio (Try http://www.batlabs.com for connections).
Motorola Gp300 Gm300 Software
Maxtrac 300, VHF 16 ch.
(sh_gp300.zip 395KB)
Sandy Ganz's RIB CardPCB.
Motorola Gp300 Gm300 Software Update
You can buy the RIB Card PCB directfrom Sany Ganz in the form of a bare PCB. It cost me $20 plus $5 Overseas shipping. Forfurther detailed information you can e-mail Sandy on the following address : motradio@pacbell.net All you need to do is purchase the components locally.Sandy also includes a parts list and information on a supplier for the components if youcan't find them locally.
Free Gm300 Software
73 de Colin inBarcelona Spain.