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Re: LF: RE: SWR Bridge Diode Failures

To: [email protected]
Subject: Re: LF: RE: SWR Bridge Diode Failures
From: "Rik Strobbe" <[email protected]>
Date: Tue, 19 Jun 2001 11:10:10
In-reply-to: <[email protected] v.uk>
Reply-to: [email protected]
Sender: <[email protected]>
I am using a bleed resistor (2 times 47k/2W in parallel). The resistors get
handwarm after a long QRSS session (at 350W RF), they consume less than 1W
(there goes another 0.01dB of my signal).
I tried a choke but even a 20mH choke affected the antenna resonance too
much and got pretty hot while transmitting so I trew it out.
For savety reasons the antenna is grounded when I am not QRV on 136,
especialy in summer.

73, Rik  ON7YD

At 10:26 19/06/01 +0100, you wrote:
Wouldn't you be better off feeding a bleed resistor as well, to stop the
static building up in the first place ? Or better still, a choke to make sure there is a proper DC path.
Andy  G4JNT

I have now fitted a 300 VRMS varistor (capable of passing 8000 amps
peak!) across the antenna connector on the SWR bridge. Nothing will
protect against a direct strike but perhaps this will discharge some of the static build up on my 1100 ft wire.

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