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UT1HZM > ALL 04.05.25 14:43z 24 Lines 736 Bytes #195 (0) @ WW
BID : 34053_UT1HZM
Subj: Re: Interface TNC & Soundmodem
Path: HB9ON<DK0WUE<PD0LPM<VE3CGR<KB5YZB<W0ARP<WW4BSA<N3HYM<IW2OHX<UT1HZM
Sent: 250504/1416Z 34053@UT1HZM.KREM.POL.UKR.EU BPQ6.0.24
>R:250503/1322Z 39253@N9SEO.#NAR.AR.USA.NOAM LinBPQ6.0.24
>Interesting, I was (probably) overthinking it?
Kayne, I'm was same, even was going to design some splitter/buffer
on OP-amps but not complete it. Interest and time forced me to try
just parallel connection and it showed no problems and works well
for some years already.
TNC and soundcard audio lines seems to be quite high impedance,
so its not overload ACC out.
And vice-versa on rig's ACC input, its enough to set drive level with
soundcards s/w mixer and with TNC out level adjust too.
Decoupling dc caps are already exist in rig and soundcard/tnc.
At least known to me few European HF multi-mode node/bbs stations
thats too use same way no problem.
73, Sergej.
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