Hello Ed, I can't follow you at the moment. My settings are now the following:
T855: PL100 1-2 PL101 2-3 PL102 2-3 PL103 1-2 PL104 1-2 Pl105 1-2 PL106 1-2 T856: PL100 3-4 PL101 5-6 PL102 5-6 PL103 1-2 The Audio is going from the T855 Pin 1 (Line I/P1) -> controller -> T856 Pin 6 (Audio 2). All other combinations won't give audio or this loud noise on the audio as I wrote before (Audio1->Audio1 (or Audio2, can't remember)) What did you mean with TB1-1...? The jumpers on the connetors are all open now. 73 Bernd DM5BM --- In [email protected], wa6rqd <[EMAIL PROTECTED]> wrote: > > Bernd Maestling wrote: > > Hello Ed, > > > > I'm using an external controller. > > I think the flat response sounds best. I wired T855 output > > PIN 1 (Line I/P1) via the controller to the T856 inputs > > Audio1/Audio2 (Pin6/5). If I use the RX's Audio 1/2 outputs > > I have a strange, loud noise on the audio. > > > > 73 > > Bernd > > > > As you are using an external controller, you should check to see that > the audio circuits within the controller are flat relative to frequency > (check AC voltage versus frequency) past the first stage (where > de-emphasis is usually located). If you are using flat audio on the > T855, you will be sending audio with pre-emphasis into the controller > and the controller will need to de-emphasise it. If you don't de-emp the > audio your touch tone decoder will not be happy as the audio will have a > large amount of twist. > > You might try driving the transmitter via its 600 input. If you are not > using the 600 input, you should remove the jumper between TX AF1&2 and > then drive TX AF2. Otherwise your controller output is also driving the > 600 transformer. > > Also make sure the jumpers are removed that connect the TX 600 to RX 600 > (look for four jumpers near TB1-1 > TB1-4) > > Ed Yoho > WA6RQD > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
