[TenTec] Amplifier Question

[Bob McGraw - K4TAX]

There's nothing like a full QSK amp to solve the problem.

The relay in the Omni VI+, when used to key the amp, does not provide delay 
for RF output thus the amp is likely to switch hot.  The TX EN is the 
correct way to delay the RF output from the Omni VI+ when using the internal 
keyer.

73
Bob, K4TAX


----- Original Message ----- 
From: "Rick NJ0IP / DJ0IP" <Rick at DJ0IP.de>
To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
Sent: Tuesday, August 28, 2007 9:52 AM
Subject: Re: [TenTec] Amplifier Question


>I operated my Omni V, Omni VI, and Omni VI+ with the Ameritron AL-80A, 
>which
> is pretty much identical to the SB-1000 linear.
>
> It worked great on SSB, but initially I had a lot of trouble with arcing
> relay contacts (inside the amp) when working CW at anything close to QSK.
> I had to burnish the relay contacts every month or two.
>
> I solved the problem by using a home-brew time sequencing device which 
> keyed
> the amp's TR relay about 10ms before passing the keying signal on to the
> Omni.  It also had an adjustable delay (max about 1 second) working like a
> VOX "hang".  This eliminated the relay following the keying signal (also
> eliminated full QSK), but it did solve my problem completely. This 
> required
> using an external keyer rather than the Omni's built-in keyer, but after
> that, I never had relay problems again.
>
> 73
> Rick
> NJ0IP / DJ0IP
>
> -----Original Message-----
> From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
> On Behalf Of Steve Berg
> Sent: Monday, August 27, 2007 11:41 PM
> To: TenTec at contesting.com
> Subject: [TenTec] Amplifier Question
>
> Has anyone here hooked up a Heath SB-1000 linear amplifier to an Omni V?
>    If so, how well did it work?
>
> 73,
>
> Steve WA9JML
>
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