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Re: [TenTec] Nother' discovery about the Corsair & Titan

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] Nother' discovery about the Corsair & Titan
From: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 31 Dec 2007 14:20:00 -0600
List-post: <mailto:tentec@contesting.com>
As I recall, the Delta 580 that I had behaved about the same way. If I didn't turn the ALC back on some bands it would trip the power supply on voice peaks. I struggled with this for some time before I figured what was happening. {i.e. Finally read the manual.}

73
Bob, K4TAX


----- Original Message ----- From: <OTAKEBI@aol.com>
To: <tentec@contesting.com>
Sent: Monday, December 31, 2007 2:06 PM
Subject: Re: [TenTec] Nother' discovery about the Corsair & Titan


Don't know what happened the email went out before I was done  fellows.
ALC is set in the radio at 14.05 for 100 watts when the ALC lamp just
flickers.
I agree that 10 meter is usually the most inefficient band as to power
output, but Ten Tec says to set the low level driver board R15 and R11 at 14.05.
Page 3-23 of the Ten Tec owners manual say how to do the process.
Had to do it to mine when I first got the rig used.
Carl is right.
On 80 meters I could, if I wanted to, crank the drive control full clockwise
and get 120 watts output.
Not a good idea.
You might want to use a good meter, Bird type, and make sure that the
Corsair II meter is giving you good information.
If it is not I would calibrate that first on the SWR board R2.
Then set the ALC on 14.05.
When I turn up the power on mine I turn the drive control to 100 watts I
then turn the ALC control back until the ALC light just flickers and your peaks
should not go over 100 watts on the peaks.
On 10 meter my drive control can be turned full clockwise and the ALC light does not come on, but I show peaks of about 110 on SSB so I still turn down
the  ALC pot until I get a flicker and I get no distortion on peaks.
You will get distortion if you don't do that.
It will sow on a scope and you will be told you are popping or edgy.
Good luck,
Dan/N4VET




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