---------- Original Message -----------
From: ac9s@mchsi.com
To: tentec@contesting.com
Sent: Sat, 12 Dec 2009 18:26:50 -0600 (CST)
Subject: [TenTec] Colliins SWR Bridge
> Jerry,
>
> You wrote: "Many a ham SWR meter is a very rough approximation of SWR and
> even
> when it shows matched, the impedance and reactance may be a ways from 50 ohms
> resistive. Birds aren't bad, Collins wattmeters I think have a much better
> design. But then I'm biased, I have one of their reject designs
> (I worked with the department that did ham gear designs in 1963) and its
> plenty good but not good enough for their specifications. There's a lot more
> shielding in their better design to control stray couplings that would make
> the readings wrong."
> > >
>
> Does the 312B-4 include the better bridge design?
Yes.
>
> Thanks --
>
> Keith
> AC9S
73, Jerry, K0CQ
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