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GB300 Repeater information required
Posted: Wed Aug 14, 2013 9:24 pm
by respondernz
Hello, I have a GB300 repeater, basically two GM300/M120 mounted with out heads in a 19" rack. Conducted to an interface. I'm wanting to know what the jumpers (2 of with A or B options) on the interface board are for and also the 25?pin connector on the rear.
I gather it is programmed with GM300 or M120 RSS or CPS S/W?
I have minimal experience with Motorola, been dealing with Tait mainly.
Any assistance greatly appreciated.
Re: GB300 Repeater information required
Posted: Sat Aug 17, 2013 3:13 am
by respondernz
Anybody know about these?
Re: GB300 Repeater information required
Posted: Mon Aug 19, 2013 2:39 am
by wavetar
I've never heard of the GB300, or seen anything like it. It very likely uses GM300 software by what you describe, but who knows? Hopefully someone here can help you.
Re: GB300 Repeater information required
Posted: Mon Aug 19, 2013 5:57 am
by Satelite
Hello:
I myself am not familiar with the GB300 either but I did search a bit and found the following info.
The GB300 is a 19 inch rack mount configuration and was made in VHF and UHF freqs.
It was not sold in the USA but was manufactured for the Australia/China/Hong Kong/India/Indonesia/
Korea/Malaysia/New Zeland/Philipines/Singapore/Taiwan/Thailand and Vietnam markets .
Interesting that doing a search here on batlabs did bring up some postings and info on the GB300
as to the pins on it per hook up and uses.
Im not saying this info is correct just info I found so use it as such.
Thank you
Satelite
Re: GB300 Repeater information required
Posted: Sat Aug 24, 2013 2:13 am
by respondernz
SOLVED
Re: GB300 Repeater information required
Posted: Sat Aug 24, 2013 8:25 am
by wavetar
respondernz wrote:SOLVED
Umm, would you mind sharing details for the benefit of everyone else?
Re: GB300 Repeater information required
Posted: Fri Aug 30, 2013 2:35 pm
by respondernz
Discovered the rear 15 pin plug is used to activate the repeater, pins are soldered together and there is a small link wire, bit of an odd way really. Other pins appear to be PTT (remote PTT keying??) 12v out, not sure on others. Links A/B on the board are used for duplex repeater or cross band linking. Found out by changing them around.
Repeater contains 2 x M120 radios. And yes the GM300 RSS version 5 worked.
The repeater has 2 M120 radios with no heads, connected to a board at the front that has the mic plug, leds for rx/tx and switch for rx/tx that you use when programming. And volume. At the rear of the there is another board connected to the external power supply, also connects to the externally fixed 15pin plug. The board also links the 2 radios via the accessory 16 pin plug.
Cheers