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[Amps] VHF engineering

To: <amps@contesting.com>
Subject: [Amps] VHF engineering
From: stevek@jmr.com (Steve Katz)
Date: Wed, 6 Nov 2002 14:30:20 -0800
Isn't the "BLC" amplifier already on two meters?  I thought it was.

If this is a 2m amp and you only want to peak it up at 144.1, that's
possible by adjusting the trimmer caps on both input and output of the PA
transistors.  However, if you peak _everything_, you can achieve an
undesirable very narrowband match that will drift with temperature and time,
and possibly even become unstable due to excessive gain.

I generally tune for a broadband match, and max output over a "range" of my
choice, which might be 144-145 or so (or maybe even 143-145), to keep it
stable.

WB2WIK/6

"If everything seems under control, you're just not going fast enough." -
Mario Andretti

> -----Original Message-----
> From: LU6KK . [SMTP:lu6kk@hotmail.com]
> Sent: Wednesday, November 06, 2002 2:19 PM
> To:   amps@contesting.com
> Subject:      [Amps] VHF engineering
> 
> 
> Hello ...
> I have VHF Engineering model BLC10/150 and need adjust (optimize)the power
> 
> output for 144.1Mhz, anyone have info for this? its possible this?.
> I dnot have manuals.
> 
> 
> Thanks .
> Fred LU6KK
> www.lu6kk.8k.com
> 
> 
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