[AMPS] Tuned Input, what me worry

[Steve Thompson]

-----Original Message-----
From: Steve Katz <stevek@jmr.com>
To: 'KG6DV@cs.com' <KG6DV@cs.com>; amps@contesting.com <amps@contesting.com>
Date: 09 October 2001 00:03
Subject: RE: [AMPS] Tuned Input, what me worry


>
>Ron, doesn't a 1dB pad only provide 1dB of impedance stabilization?
>
>Think about it, and then have a beer.  I'll have one, too!
Nonono, beer first!

Anyway, a 1dB pad provides a 2dB improvement - drive power goes through the
pad, some or all gets reflected, goes through the pad again before the
driver sees it. With 3 dB pad, you can't get worse than 3:1 VSWR, even if
the output end is open/short/any phase. A 6dB pad guarantees you about 2:1
max.

Steve


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