[ICOM] Amp Keying Question Again

[David J. Ring, Jr.]

There are some ideas for QSK and speeding up transceiver switching (namely 
eliminating the relays) for some transceivers.

http://www.somis.org/QSK922.html

I am not the author of the page, but the author is held in high regard by 
many.

73

David N1EA

----- Original Message ----- 
From: "Adam Farson" <farson at shaw.ca>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Monday, June 20, 2005 1:56 PM
Subject: RE: [ICOM] Amp Keying Question Again


Hi Joe,

The amplifier keying relay in an Icom transceiver cannot be disabled, but
you may be able to connect ACC(2) Pin 3 (SEND) to the AmpKeyer input. The
SEND line is bi-directional; it goes low on transmit, and grounding it
externally keys the transceiver. The relay will still operate, but keying
from the SEND line eliminates the relay's 1 mS latency.

Cheers for now, 73,
Adam VA7OJ/AB4OJ