I can't comment on the 922 or 80B with the 950sdx, but here is what I do for
keying any amp. I take the "+12VDC ON" signal from pin 7 of the remoter
connector. That feeds a series 10k resistor to the gate of a power mosfet I
bought at Radio Shack. I put a 100k resistor from the gate to ground. I use
the mosfet to key the amp. I have been using this on 930, 940, 950, and
751's to key Acom, Alpha, and Dentron amps. Don't hear the relay in the
transceiver and don't worry about the contact rating of the relay. I haven't
lost a relay with QSK doing this.
Tony
-----Original Message-----
From: owner-towertalk@contesting.com
[mailto:owner-towertalk@contesting.com]On Behalf Of Kevin Hemsley
Sent: Wednesday, November 07, 2001 14:28
To: towertalk@contesting.com
Subject: [TowerTalk] Amplifier Interface
I'm looking to use a Kenwood TS-950SDX to excite an Ameritron AL-80B and/or
a Kenwood TL-922 amplifier. Is an external relay, such as the Ameritron
ARB-702K a good idea, or unnecessary for the 950SDX? Any wisdom on this
would be greatly appreciated.
Thanks,
Kevin.
------------------------------------------------------
Kevin Hemsley
kev@ida.net
KB7TYA
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