Why not use outdoor romex cable to extend AC power, and move the repeater closer to the antenna - loss would then be in the AC power line, and not in the transmission line. Assumes you can find a suitable and secure outdoor enclosure....
Steve NU5D
On 5/30/06, skipp025 <[EMAIL PROTECTED]> wrote:
The common answer is probably no... you can't run a remote
preamp as described in your post. There is always a "but"
There is a yes answer, but it takes quite a bit of hardware,
which doesn't seem practical except in very special cases. It's
a hardware layout of an rf tower mounted rx preamp diplex
filtered with tx path signal hardware, but you would really
have to know the costs and performance trades for buying and
using one.
It would be more practical to remote locate the repeater in
a small weather proof box closer to the antenna.
The best bang for your buck would be to invest in some really
good hard line for the long feedline run. 1-5/8 hard line is
cheap on the surplus market right now...
cheers,
skipp
> "danryant" <[EMAIL PROTECTED]> wrote:
>
> I am using a pair of GM300 radios hooked up to a duplexer and getting
> a repeater controller. The problem that I am having is the 250' run
> of coax to get from the shack to the antenna.
> My question is this. Can a preamp and dc injector be used when the
> antenna it is hookup up to is both the tx and the rx antenna? I am
> going to be running a amp for tx power as well. (100 watt) My
> understanding is that I will be down to about 12.5 watts at the
> antenna on the tx side. Is this correct math?
> Thanks again for your help and continued support for those of us who
> are not radio literate.
>
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