[ICOM] RJ45 mic jack question

[D C *Mac* Macdonald]

Check and trace the schematic, John.

* * * * * * * * * * *
* 73 - Mac, K2GKK/5 *
* (Since 30 Nov 53) *
* Oklahoma City, OK *
* USAF, Ret (61-81) *
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> Date: Wed, 10 Aug 2011 09:10:32 -0500
> From: aa5jg at fidmail.com
> To: IC-706MKIIG at yahoogroups.com; ic706 at yahoogroups.com; icom at mailman.qth.net
> Subject: [ICOM] RJ45 mic jack question
> 
> I see from the manual for the Icom 706 original that the AF out audio is
> available from the mic connector, much like it is from the ACC connector.
> The manual doesn't state, though, if this audio is fixed level or controlled
> by the AF gain. Does anyone know this? I am trying to come up with a
> simple AFSK/digital interface using only the mic connector (and VOX). Has
> anyone designed one this way, or know of commercially available products
> using the mic connector for both audio in and out?
> 
> 73s John AA5JG