How are you measuring output power? If you use a peak-reading meter, you
should see the same PEP output as you do with the radio in CW, but I have
noticed, as have others on the list, that the average power on SSB is less
than from other rigs. I suspect this has to do with the digital software
ALC overriding the hardware analog ALC. Hardware ALC will give a higher
average output, especially when pushed hard, although this may come at the
expense of increased IMD and poor CW pulse shape causing key-clicks. I
think that the software ALC is rigged to pull back the drive and hold it
back just when the hardware ALC starts to activate.
I would like to see TT address this in an update since the current method,
while very conservative, may be more than is needed. Letting the hardware
ALC push higher into its range would increase average SSB power without
introducing distortion or splatter, although the action in CW seems to work
just fine.
Ron N6IE
www.N6IE.com
----- Original Message -----
From: "Michael W Elliott" <kq0b@sbcglobal.net>
To: <tentec@contesting.com>
Sent: Thursday, April 05, 2007 6:57 PM
Subject: [TenTec] AMP driveOrion II versus Icom Pro II
I am finding that the output drive from the Icom Pro
II produces better output to my Alpha 99 versus the
Orion II. THat is 35-38 watts from the PRO II. Only
diff is changing of the transceiver. I use a
Ameritron ARB-704 and a Nye Viking Tuner in the line.
What could be causing this to happen ??
I can consistently get 1500 out driving the Alpha 99.
Orion I do not get 1500.
Anyone else seen this ?? Is there a setting I am
missing with the Orion..
Please contact me offline if you have some
suggestions.
de
KQ0B
Michael W. Elliott, CISSP
(Certified Information Security Specialist Professional)
THE INSIDE ADVANTAGE -
RETIREMENT - LEISURE, REST and ONLY ELECTRONIC MAIL PAYMENTS
Servant to Bridgett, Collin and all my Creditors
St. Louis County Missouri
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