Perhaps an optoisolator in series with the LED.
> Ray Rosler wrote: > >> ----- Original Message ----- From: Ray Rosler To: Repeater-Builder >> Moderator Sent: Wednesday, September 05, 2007 7:20 AM Subject: KDK >> UHF 7033 >> >> >> Good morning. I am going to try and make this unit into a link radio >> and I am in need to know just where to pick off the COS signal. The >> controller being used will be a cat-400. I have found that the >> receive led goes high when squelch is opened, but the level is to low >> to be of any use. any suggestions... >> >> Ray VE5RAE >> >> > >

