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1. [TenTec] Tech Question (score: 1): Author: d.e.warnick@comcast.net; Date: Wed, 12 Dec 2012 15:35:11 +0000 (UTC); I am keying my CW from an RS-232 port, and my PTT line when using RTTY FSK from an RS-232 port The rig is an Orion II My interface from the RS-232 to the Orion II is an Opto-Isolator (I use the W3YY; /archives//html/TenTec/2012-12/msg00054.html (7,754 bytes)
2. Re: [TenTec] Tech Question (score: 1): Author: "Lee WA3FIY" <wa3fiy@radioadv.com>; Date: Wed, 12 Dec 2012 16:20:57 -0500; Dave, The simple answer is Yes. The opto isolators appear to be open collector. If that is so, you can treat them like switches and can parallel them as desired. I feed my PTT line with a PTT switch,; /archives//html/TenTec/2012-12/msg00058.html (9,436 bytes)
3. Re: [TenTec] Tech Question (score: 1): Author: d.e.warnick@comcast.net; Date: Thu, 13 Dec 2012 21:02:30 +0000 (UTC); Thanks, Lee. This morning I drew the circuit and it all made sense. I just had to see it and have a sanity check. For some reason, when it was not drawn, I had a problem with separate grounds coming; /archives//html/TenTec/2012-12/msg00063.html (10,990 bytes)

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