Hi Chris,
Sure you can do both transmitters at the same
time using a hybrid tx combiner panel and a
matching combo notch pass receiver preselector.
Not a lot of hams do this type of setup, but it's
done all the time at commercial sites.
The fly in the soup is an instant half power lost
from each transmitter via the hybrid network.
You can also close space combine with very high Q
cavities (and a lot of them), but it will be touch
and go and possibly not work well.
I'd throw the LMR-400 idea away and use actual
hardline. It's real cheap on the surplus market.
LM-400 has caused more problems for me than it's
worth in the initial purchase "cost savings".
cheers,
Skipp
skipp025 at yahoo.com
www.radiowrench.com
> "Chris Peterson" <[EMAIL PROTECTED]> wrote:
> Hi all,
>
> My repeater is moving to a watter tower which will double it's
coverage
> area.
>
> Here is the problem. The feed line path up the tower is full enough
that we
> can probably fit only one run of feedline up the tower.
>
> The link radio is on 443.025/448.025 and the repeater is on
442.750/447.750.
>
> With this small split, is it remotely possible to combine the link
radio and
> the repeater to use the same antenna?
>
> Another option may be to run a fairly small feedline for the link
radio,
> I.E. LMR-400. This is about a 200 ft run of cable so I imagine the
LMR400
> would be pretty lossy.
>
> Any thoughts?
>
> Thanks,
> Chris, KG0BP
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