Topband: Relay bounce

John Battin jbattin at msn.com
Tue Feb 22 15:17:24 EST 2022



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From: Wayne Kline<mailto:w3ea at hotmail.com>
Sent: Tuesday, February 22, 2022 14:02
To: Steve London<mailto:n2icarrl at gmail.com>; Topband<mailto:topband at contesting.com>@contesting.com
Subject: Re: Topband: Relay bounce

Steve,
I am not sure it is contact bounce.  I look would at grounding or other issues that would conduct transients of the relay coils into the RF stream.
John k9dx


My frist thought is to clean the contacts ( there open frame relays)

   For changing the relays Direct replacement  difficult . The Co that makes them  produces them in limited runs for  Amerirtron

   GL


Wayne ,W3EA
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From: Steve London<mailto:n2icarrl at gmail.com>
Sent: Tuesday, February 22, 2022 1:05 PM
To: Topband<mailto:topband at contesting.com>
Subject: Topband: Relay bounce

I am using an Ameritron RCS-4 antenna switch to select between beverage
antennas. Recently, it has developed a bad case of relay bounce causing an
S9 spike every time I switch between antennas. Any suggestions on how to
improve this ? Since it's only used for RX antenna selection, I'm amenable
to replacing the relays with something else, although I have had issues
before with other relays due to no current going through the contacts.

Thanks and 73,
Steve, N2IC
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