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CROSS BAND REPEATER WITH 2 BTECH MOBILES
WHAT’S NEEDED:
RJ-45 CABLE (Diagram on Page 4)
2 BTECH MOBILES
The frequencies used in this guide are for illustrative purposes only. It is the responsibility of the user to program frequencies that he(she) has been granted the authority to use.
This Illustration Example Uses:
136.025MHz to 465.025MHz – PL (CTCSS) 74.4Hz
1: First set the parameters on the two mobiles. On the first mobile select the lower display (with the A/B Button). Set the frequency to 465.025MHz (or your own UHF frequency)
On the other radio select the upper display (with the A/B Button). Set the frequency to 136.025MHz (or your own VHF frequency)
2: On both BTECH mobile radios set the PL Tones with MENUS 11 and 13. In this example set R-CTCS (Menu 11) to 74.4Hz and T-CTCS (Menu 13) to 74.4Hz
3: Enter MENU 43 REP-M and select CTDCS for two mobiles – this will require the repeater forwarding (X-Band Repeat) to activate once the confirmed PL signal (CTCSS or DCS) is received will transmit it on.
4: Exit the Menus and connect the radios with a RJ-45 cable (diagram on page 4). Insure your external antennas are not in close proximity to avoid interference.
5: If the radio receives the carrier frequency with the required CTCSS or DCS tone (depending on your configuration) the radios will now pass along and transmit the signal from VHF-UHF or vice versa as a cross-band repeater[/vc_column_text]
THIS IS ONLY RECOMMENDED TO SUPPORT CROSS–BAND REPEATING – DO
NOT USE 2 VHF OR 2 UHF FREQUENCIES
MAKE SURE THE TWO ANTENNAS ARE FAR AWAY IN ORDER TO PREVENT
THE INTERFERENCE BETWEEN THE TWO BTECH MOBILES
Comments (8)
Hi all, I recently tried the CROSS BAND REPEATER WITH 2 BTECH MOBILES. I have 2 Btech UV25x2. I made sure to follow the instructions and to make a RJ-45 cable. Also have a tester to make sure the Cable was configured correctly. It did not work and when plugging back the 2 microphones like it was, the lights and the buttons don’t work anymore on both of them. But the PTT and modulation is ok. Tried to do a reset and reprogram the radio with chirp did not fix it. Did something burn out in the radio’s ?? Please help!
Can this cable be used if we will be using the in SAME band like the UHF band? Or any modification with the pin assignments on the UTP Cable? Anyone…?
You obviously didn’t read this, did you?
Does this REP-M mode exist on any of your current radios in your stable? It seems the model at the time of this article is no longer around.
What would be really cool is if you could do this with two different models. A 50w for the VHF and low watt for the UHF.
All BTECH mobiles (excluding the UV-50X3) support the REP-M menu
So….
If I add an external duplexer, if there any reason I can’t build a UHF/UHF GMRS repeater using the REP-M feature and cable?
Would this work for 2 50v2 as a gmrs repeater with full duplexer setup.
fyi tunned duplexer with single antenna