In responding to the querry about what type of coax to use, KC5UOO
suggested running 110 Vac to the top of a tower to operate an antenna
switch. Please note that this is potentially LETHAL unless industrial
grade installation guidelines are used throughout the project. That
means running metal-type conduit up the tower for the AC power line.
It is far safer to run 12 Volts ac or dc to the top of a tower to
operate switches, so long as the relay coils are consistent with
that voltage.
Just a word of caution........Avoid running 110 Vac up to the top of
a tower if at all possible, or if you EVER intend to climb that tower
with the AC power on!!
73
Dale K5MM
*************************************************************************
At 07:27 PM 12/1/97 -0600, KC5UOO wrote:
>I would run the *BEST* stuff I could afford...to a Transco or
>Thompson-Ramo RF switch at the top. These units have either 5 or 6
>outlets using waterproof n-connectors & are virtually lossless at HF.
>They usually go for $40-$100 at hamfests. My Thompson uses 110v & is
>usable to 12ghz. Or, you can look around for the one Drake used to
>make.Hope this helps..John KC5UOO
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