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Re: [TenTec] Corsair II DDS VFO

To: tentec@contesting.com
Subject: Re: [TenTec] Corsair II DDS VFO
From: Bryan Lee Cornwell <k2blc@embarqmail.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 21 Mar 2011 17:52:03 -0400
List-post: <mailto:tentec@contesting.com>
On 03/21/2011 4:59 PM, Steve Hunt wrote:
Perry,

I haven't tried it. If I get a chance over the next couple of days I'll
do some tests.

It would be nice to get some thorough testing done of Rx performance
when equipped with the DDS, but I don't have the kit to test things like
close-in DR. I can't say I've noticed any deterioration during my
"casual" operating, but I wouldn't be surprised if there was some
penalty compared to the PTO. I'm in the enviable position of having one
Corsair with the DDS, and another Corsair with the PTO plus remote VFO;
that's the way I intend to keep it for now.

73,
Steve G3TXQ

On 21/03/2011 18:37, w8au@sssnet.com wrote:
At 10:58 AM 3/21/2011, Steve Hunt wrote:
I replaced the PTO on one of my two Corsair IIs with the
N4YG DDS board. That provides two VFO functionality and Split operation;
it has transformed the tuning "feel". That Corsair is now the first I
switch on when I go into the shack, in preference to my other Corsair or
the Omni VI.
Steve:

Do you use split operation on CW?  Curious to know if the DDS osc can handle
the instantaneous shift of frequencies at a fast keying rate.  Obviously there
is a delay compared to the External VFO that runs constantly, but is the
shift noticeable either in a chirp, click or an "enabling delay" that shortens
the dots?

73,&   TIA
Perry  w8au

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Don't overlook the N3ZI DDS VFO.....It's a great product. I've used several in homebrew receiver projects

73
Lee

--
Bryan Lee Cornwell

k2blc@embarqmail.com

http://k2blcspace.embarqspace.com/



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