Since the same contact surfaces are used to handle transmitter power they
are "cleaned" by the higher current during transmit. In an amp, different
sides of the contact are used in transmit versus receive, so the receive
side never sees the "benefit" of high current cleaning.
Hank
AA4HP
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To: <amps@contesting.com>
>Date: Sat, 12 Aug 2000 11:25:25 +0000
>To: amps@contesting.com
>From: Pete Smith <n4zr@contesting.com>
>Subject: Re: [AMPS] Relays hanging up
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>
>At 06:58 AM 8/12/00 -0400, you wrote:
> >The ideal amplifier open-frame relay would use low current small
> >surface area contacts on the receive side, with high current
> >contacts on the transmit side.
>
>It puzzles me that we don't seem more of these problems with remote antenna
>switches, where you're receiving through contacts that must also be able to
>handle transmitting power.
>
>
>
>73, Pete Smith N4ZR
>
>The World Contest Station Database
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>
>
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