[VHFcontesting] 1296

[radioman01]

Hi Jamie..

a pre-amp is a must for that band, but im a little worried about 125 ft 
of coax on 1.2
thats a major run of cable for RG-8 type
have you looked at the losses at those freq for that cable?
according to the times microwave chart LMR-400 at 900meg at 100 feet is 
3.9db loss..
and at 1500mhz 5.10 db loss..
that means at 1.2 you could be loosing more then 1/2 the power before it 
gets to the antenna
if im wrong someone pse step in..

but a preamp even at a 40 ft run of LMR-400 cable that i have made the 
difference for the weak ones


Tony
NN1D



Jamie Dupree NS3T wrote:
> A question for you experts out there.  In the Spring, I plan to put 
> some small antennas up on the roof, including a 1296 loop beam.
> The coax run is straight to my rig with 125 feet of low loss coax (Bury Flex.)
>
> Forgive my rookie question - will I need a pre-amp on the mast
> for that band?
>
> 73 Jamie NS3T
>
>
>
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