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RE: ICOM 910H reply



Joe,
I understand your concern. I solved the problem and also created a nice
arrangement for QSOs.
I use a foot peddle with a DPDT switch within. I use one pole to key the
910H via the PTT connector of the Heil BM-10 Icom Mic adapter and the second
pole to key the 23cm brick. Works great... The necessity to use the PTT
within the mic connector was not a problem because I wanted to replace the
good for nothing mic which comes with the 910H. Heil has just the answer in
the BM-10 and it comes with an Icom adapter including a phone jack for PTT.
Gunther Meisse
W8GSM


-----Original Message-----
From: owner-AMSAT-BB@amsat.org [mailto:owner-AMSAT-BB@amsat.org]On
Behalf Of Joe Steinmetz
Sent: Sunday, September 15, 2002 11:19 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] ICOM 910H


Hello,

I own an IC-821H and would like to replace it with something than can do
23cm. I have been looking at the 910H. One of the issues I had with the
821H was that it did not have separate ground-on-transmit signals for
each band (like the Yaesu 736R does). It appears from the ICOM 910H
manual (available here
http://www.icomamerica.com/SUPPORT/DOCUMENTS/manuals/ic-910H.pdf ) that
this shortcoming (in my opinion) has not been corrected. To make things
worse I don't even see a single ground-on-transmit signal available (the
ACC and DATA sockets list PTT and SEND as inputs). While I can justify
not using an external linear for 2m and 70cm, 23cm is a different story.
I don't like to use RF sensed switching of linear amplifiers - I like to
use a ground-on-transmit signal from the radio. So, what am I missing?
How does one accomplish this with the 910H and an external 23cm linear
AMP without RF sensing?

thanks.

Joe
k6sat

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