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Interfacing a TK-880H-1 with a TKR-840


WRQU355

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Wondering has anyone done something like this? I want to turn off the 5 watt transmitter in the TKR-840 and use the 40 watt transmitter of the TK-880H. I am think all it takes is inhibit TX of the repeater, use the COR signal from the repeater to key the TK-880H and receive audio from the repeater to the microphone line of the 880. Is my thinking correct? Any insights? 

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you will need TOR low>PTT , RX aud> Mic Hi and as long as the ground is common. That should work but not 100% on it , its been a long time since I did something like this.
COR will key anything it hears that breaks squelch. Might need a pot and cap to fine tune the TX audio level.
Also as a side note an 840 should do 20W-25 W unless it's turned down

Edited by JohnE
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was thinking tk 840 mobile. TKR 850/ 851 are 40/25

19 minutes ago, gortex2 said:

It would be cheaper to add a PA to the TKR to be honest and clean way to do it. I run 2 of them for SAR work and its solid as a rock. Especially a 50 watt PA. They are out there.

agreed. get a mobile amp 5>50 and be done w/it

 

Edited by JohnE
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