#Motorola radio programming kit how to#
#Motorola radio programming kit serial#
#Motorola radio programming kit portable#
#Motorola radio programming kit mods#

Edit the '08' to '10' (note 10 in Hex is equal to 16 in decimal).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.When you press 'Find Next', you will see your model number highlighted.When you enter the model number leave off the last two letters(AB on my radio).Make sure 'ASCII' is ticked.You need to enter the model number of your radio.Press 'Cancel' to return to the main window and your next step.Write this number down, as you need it later.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).Make sure 'Entire Document' and also 'Decimal' are ticked.Go to 'Tools', and the 'Generate Checksum'.Start the Hex Workshop program and open the file GP300.MDF to begin editing.This should help you understand the procedure of editing the file which when complete will give you 16 channels. I have made a small video that shows the Hex Workshop screen during the modification. Keep a backup of your original GP300.MDF file, just in case you make a mistake. The file you need to modify is called GP300.MDF and can be found in the main directory of the Motorola software. You then need to 'Hack' a file called GP300.MDF with the help of a Hex editor such as Hex Workshop. You will now find the radio then switches 16 positions instead of the original 8 channels. Cut this off with a sharp knife and replace the knob. On the underside of the channel selector knob you will see a small black 'Stop'. To program the radio for 16 channels you need to first of all, pull the channel selector knob off the radio. This example is the same for both the VHF and UHF GP300's.ДЎ6 Channel conversion. Fill all of the 0's in the frequency field. For example to program 433.500MHz you will enter the following: $ВЈВЈ.%)) on a English layout keyboard. You must release the key when entering the decimal point. However this depends on your version of software, if it's a un-hacked version then you have to press the key down when entering the frequency. To program the radio onto the Amateur band, you can find some versions of software that have been hacked into allowing frequencies to be entered to bring the radio into the amateur bands which normally are just bellow the original working frequency. You also have to make an interface, or purchase one. If you can't find it then try your local Motorola dealer who should be able to help at a small cost. The radio requires the Motorola Software which can be found if you ask around or search for it on the FTP sites on the Internet.

#Motorola radio programming kit serial#

All it consists of is a RS232 to TTL level converter, that connects between the serial port of your PC and the radio. The programming interface can be made for a low cost. These can be modified to operate on 16 channels quite easily. Most of the radio's I have worked on have originally been 8 channel units.

#Motorola radio programming kit portable#

The radio is made in both a VHF and UHF versions, and makes an excellent 2mtr or 70cms portable radio. The Motorola GP300 can be re-programmed quite easily to allow use on our Amateur Radio bands.

Motorola GP 300 (GP300 GP-300) technical specifications Motorola GP 300 (GP300 GP-300) technical specifications : Motorola GP 300 (GP300 GP-300) RIB-IVG (Programming Interface MkII) Motorola GP 300 (GP300 GP-300) Radio Programming, 8 to 16 channel expansion

#Motorola radio programming kit how to#

Motorola GP 300 (GP300 GP-300) How to program the radio Motorola GP 300 (GP300 GP-300) TX out of band limits Motorola GP 300 (GP300 GP-300) VHF hi-band portable Motorola GP 300 (GP300 GP-300) gp300/5 Tone out of band

#Motorola radio programming kit mods#

Mods for Mods for Motorola GP 300 (GP300 GP-300) :

Schematics for Motorola GP 300 (GP300 GP-300) : Motorola GP 350 Dos RSS programming software (R08.01.00) Motorola GP 300 Dos RSS programming software (R07.00.00) Programming software for Motorola GP 300 (GP300 GP-300) : Programming interfaces schematics for Motorola: Motorola MAX232 programming