Build Vehicular Repeater

Carl · Post by **Carl** » Mon Sep 24, 2001 8:15 am

i want to build a vehicular repeater with my Maxtrac300 vhf to my maxtrac100 uhf...what can i do ?they got 5 pin on the rear and i know threr is a way to do this without a RICK. Uhf will be for handheld radios.

NMFD · Post by **NMFD** » Mon Sep 24, 2001 8:33 am

have a look at this. http://Batlabs.com/maxrpt.html

stuartnj · Post by **stuartnj** » Thu Sep 27, 2001 3:47 am

some advise before you go out and buy the sutff:

Make sure the Maxtracs can be programmed to use the RICK in the RSS!! I tried doing this with two GM-300s, and let me tell you... the 8ch version can't be used because you can't program the external connector. Just make sure your radios can handle it before you go out and spend money.

JayE · Post by **JayE** » Fri Sep 28, 2001 5:24 am

If it is for your own use and you don't mind a little "monkey hamming" you can do it. Use a mic cord and wire it to a RJ45 (8 pin) phone jack. Plug your mic into that and wire from the screw terminals inside the jack. Use External speaker on the accessory jack after padding through a resistor, and to get a COR, tack solder a lead onto the transistor in the radio that turns the audio cicuit on when recieving. That will have to be buffered through a transistor and that is where you build in your hang time as well. Make sure you use low enough output power so you don't cause desense and keep antenna separation to a max. It will work. I have done it although I'm kind of embarrassed to admit it! If you have only the five pin accessory jack this is the only way. A RICK won't work on them.

<font size=-1>[ This Message was edited by: JayE on 2001-09-28 09:26 ]</font>

kgrmuc · Post by **kgrmuc** » Sun Sep 30, 2001 12:23 pm

I am currently using a 8 channel 40 watt UHF with standard accy connector with no problems. While you cant program the I/O on say Pin 8 the default is COR(TPL,DPL,CSQ Detect)
On 2001-09-27 07:47, stuartnj wrote:
some advise before you go out and buy the sutff:

Make sure the Maxtracs can be programmed to use the RICK in the RSS!! I tried doing this with two GM-300s, and let me tell you... the 8ch version can't be used because you can't program the external connector. Just make sure your radios can handle it before you go out and spend money.