I am new to this list and did check the archives to see if perhaps this was
specifically covered by others. While there were references to drift
correction in the Corsair's, I did not see this cure mentioned.
Earlier this year I purchased a Corsair one that I would call in "medium" shape
and was generally pleased with the purchase save for the drift problem that
would take about 2 hours to finally stop drifting. But it was the the drift
in the first half hour that was a killer. Keeping the rig powered on all of the
time was not optimal. There are several manufacturers of "vfo stabilizers"
including rolling your own.
I decided to try a product from the UK called the X-Lock 2 which will be
discontinued this month to make way for X-Lock 3. Now I can turn on the Corsair
and after about 2 seconds it will lock on frequency and stay there. The kit
price depends on the exchange rate but typically is around $40. I have no
affiliation with the company but have included a link on my website so you can
see how it was installed.
5 wires are used for the interface with two of those being power which is
tapped into the Corsair rear apron aux power. 2 connections for the coax that
samples the RF output and a 1 connection to the Offset pin on the PTO. There is
a tri color led that shows the lock / unlock status and that I simply routed
out the bottom of the Corsair Case and taped it to the bottom of the case. The
range of the Offset is somewhat less with this fix but I am happy to forego a
smaller range to gain the frequency stability. YMMV but I am only sharing what
I experienced.
see: http://www.jessystems.com/X-Lock%20(rev%201).pdf
The manufacturer is Cumbria Designs, Ron Taylor G4GXO
http://www.cumbriadesigns.co.uk/x-lock.htm
73's
Pete N6QW
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|