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[TenTec] AM Output Level 2.037j

To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Subject: [TenTec] AM Output Level 2.037j
From: "Grant Youngman" <nq5t@comcast.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 12 Sep 2006 21:12:55 -0500
List-post: <mailto:tentec@contesting.com>
Has anyone figured out what's going on with AM transmit with the new
release?

I get a resting power out level in the 10+ watt range, with upward carrier
shift with modulation (erratic with around 25% peak positive shift on a
Belar mod monitor).  The peak output with 100% modulation is running 70+
watts, or there 'bouts, which on average might imply the carrier is moving
up to something shy of 20 watts under modulation, give or take the side of a
barn.

This isn't all that terrific, if it's working the way it appears to be --
behavior more like a controlled-carrier modulation scheme (albeit with a
relatively slow time constant).  And given the output levels, it's
questionable whether this new version is going to fully drive my AL-1200.
Haven't put it on the air yet on AM, so don't know if it's going to play at
the other end like a loud DX-40 or what :-)

I almost think a bit of downward modulation might be a better answer rather
than the way it was 'fixed" in the new release.

Then again, maybe I'm just missing something ... 

Grant/NQ5T


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