TenTec
[Top] [All Lists]

Re: [TenTec] Omni-VI QSK with Alpha 87A

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Omni-VI QSK with Alpha 87A
From: Glenn AE0Q <gm5bkc@gmail.com>
Reply-to: gm5bkc@gmail.com, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 6 Dec 2011 12:42:24 -0700
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
The note specifically states that the connection described (a diode off the
TX EN loop) is only for the Alpha 87A and 89, which use PIN diode switching
with almost no delay times.
  It wasn't intended for amps with T/R relays!

Glenn AE0Q


On Tue, Dec 6, 2011 at 8:18 AM, Paul Christensen <w9ac@arrl.net> wrote:

> I really wish that information would disappear, but the Internet is
> forever...
>
> Barry and other's -- Please be careful with this set-up. I was part of the
> original discussion back in 1998 together with Terry, W6RU.  The concept
> looks great on paper, but results in hot-switching on the trailing RF
> envelope with some Alpha amps.  I detected the problem when the Jennings
> RJ-1A failed in my Alpha 77Dx.
>


-- 
"Remember, any tool can be the right tool!"   Red Green

     AE0Q           ex: GM5BKC, ZB2WZ, V31RY, SV0WY, WA0VPK
ae0q@arrl.net    --SOWP 5558-M, ARRL LM, QCWA LM, OOTC, NCVA--
http://www.radiotipsandtales.com
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec

<Prev in Thread] Current Thread [Next in Thread>