[70cm] Pre-amp questions

[K2yaz at aol.com]

My question is, have any of you, or do you know of anyone who has tackled
a similar project?  I am also looking for suggestions on mast head antenna
switching and recommendations for pre-amps.

Hi Mike:

I Have 432, 1296 and a bunch of mw stuff( 2.3, 5.7, 10g, 24 g) with 144 IF.

All amps are on tower (power and preamps and T/R relays))

I run one run of  200 ft of cheap coax with a Comet Triplexer on each end. 
The Triplexers automatically switch 144, 432 and 1296

Advantage: one coax, no loss (amps on tower) - especially great if your going 
MW, automatic switching at shack and Tower (switching still required to 
switch power amps and preamps in and out)

Disadvantage: Have to climb tower to work on amps.


I do the same scenario for 50, 144, 222, 903 on another tower with a combo of 
triplexers/diplexers

Both towers are crank ups  ( thats my lightening solution)

Regards,

Bob