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[TowerTalk] Remote Antenna Switches

To: <>
Subject: [TowerTalk] Remote Antenna Switches
From: (Mark)
Date: Tue Feb 4 22:37:08 2003
Hmmm, -- who told you that?  I have a home-brew I bought from an old-timer a
year ago or so, and it works swell! I've swept it's frequency w/ MFJ 259 ..
and put in/out into dummy ... NO loss detected, no impedance bumps I can
discern on 80 through 10 .. (I am sure there are some, always is, but .. NOT
apparent .. soooooo?)  Has super duper professional relays .. I will have to
dig up the original info if I can find it, and .. it is fed 12 V up the
feedline, which I did not like .. but, guess what .. worky worky, stick 1500
watts there, and it dobedo just fine... NOT made out of junque, simply the
best of home-brew...   73 --- Mark  AA6DX
 Original Message -----
From: "Steve Katz" <>
To: "'KG4QDZ'" <>; <>
Sent: Tuesday, February 04, 2003 11:01 AM
Subject: RE: [TowerTalk] Remote Antenna Switches

> Homebrew switches using relays do not fare well at VHF, and less so at
> Relay and wiring reactance takes over pretty quickly.  Even using small
> factor relays interconnected by a good circuit board layout such as
> Ameritron does, performance drops off pretty quickly above 144 MHz for the
> "control line" version, and the "biased through the coax" version is
> For VHF-UHF remote antenna switching, I'd go with surplus Transco
> coaxial switches.  Pretty much what everybody uses at VHF and above, most
> the Transcos are good to at least 2 GHz, some higher.
> -WB2WIK/6
> "Success is the ability to go from failure to failure with no loss of
> enthusiasm." -Winston Churchill
> > -----Original Message-----
> > From: KG4QDZ []
> > Sent: Tuesday, February 04, 2003 9:46 AM
> > To:
> > Subject: Re: [TowerTalk] Remote Antenna Switches

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