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" <stevek@jmr.com>
To: "'KG4QDZ'" <kg4qdz@arrl.net>; <towertalk@contesting.com>
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
UHF.
> Relay and wiring reactance takes over pretty quickly. Even using small
form
> 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
worse.
>
> For VHF-UHF remote antenna switching, I'd go with surplus Transco
motorized
> coaxial switches. Pretty much what everybody uses at VHF and above, most
of
> 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 [SMTP:kg4qdz@arrl.net]
> > Sent: Tuesday, February 04, 2003 9:46 AM
> > To: towertalk@contesting.com
> > Subject: Re: [TowerTalk] Remote Antenna Switches
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