More info: the problem is I want isolate, but I want not to have a power
supply on the rtx side.
(for 1k2 the interface is powered on the PTT line, but on the tnc line!).
Sorry.

Massimo I0MCF


"Massimo I0MCF" ha scritto nel messaggio
...
I want to electrically isolate the transceiver from the tnc.
On 1k2 the job is easy: two audio transformers and an optocoupler work
well.
But for 9k6 ? How to get rid of square wave translation ?
73


Massimo I0MCF