2006年9月28日 · The GM300 was Motorola's next step in the MaxTrac / Radius mobile product lines. The schematics are remarkably similar. You can even interchange some boards between the GM300 and MaxTrac radios. Like the MaxTrac, …

2007年5月15日 · This article describes one reliable, simple, and universal method of interfacing MaxTrac, Radius, and GM300 series of Motorola mobile radios to common repeater controllers. Most of this information also applies to radio interfaces that are used with IRLP or EchoLink.

TONTON JUGA https://youtu.be/4jtPiljxbH8Beli cor maxton https://shope.ee/40IQu1N9w9 / https://tokopedia.link/JLFgnYZ2nKbCOR MAXTON : COR Interface Repeater M...

2013年11月20日 · 用gm300搭建的数字中继可自动兼容模拟和数字方式，支持目前所有4fsk调制方式的数字信号转发，如moto xts2500/3000 p25手台、国内所有dpmr手台等（注：须去掉中继的id管理功能，或在下面的方案二中自己分析协议在控制板上加入中继id管理功能）

This article describes one reliable, simple, and universal method of interfacing MaxTrac, Radius, and GM300 series of Motorola mobile radios to common repeater controllers. Most of this information also applies to radio interfaces that are used with IRLP or EchoLink.

2009年4月11日 · We are trying to set up some repeaters with GM300s. I have one RICK and a few of the radio-radio interface cables. How do we program the accesory cable to make it work as a repeater? I believe pin 8 is programmed for COR, but have lost my notes and am having issues searching. Mahalo. by Doug » Sat Apr 11, 2009 9:26 pm.

2012年4月15日 · To add a COR circuit to a MaxTrac the only parts needed are a 10k resistor, and a common NPN transistor, for example a 2N2222 or a 2N3904. In the text and drawings below this new transistor is called Q1, not to be confused with any existing Q1 in the radio. First thing you need to do is disassemble the radio.

GM300 mobile radios cover the VHF (136-174 MHz in two ranges) and UHF (403-520 MHz in four ranges) bands, with 8 or 16 channels, 12.5 or 20/25/30 kHz channel spacing, and 10, 25, and 35-45 watt power levels.

2007年3月20日 · The GM-300 should not need a pull-up resistor. As long as you can set a programable pin as cor or cor+pl it should interface to a cat 1000 no problem. If a pin is not programable or you are using an older maxtrac or something like that, I find that that the audio PA enable voltage makes a OK logic signal for cor+pl.

The ST-M16-COS/COR is an interface module. It is used to connect most Motorola mobile radios to Solidtronic RoIP gateways and INNOTEK repeater controller modules. The ST-M16-COS/COR Radio Transceiver Connection Module supports most Motorola mobile radios with 16-pin or 20-pin accessory connector including but not limit to below list of models: