> Kris Kirby <[EMAIL PROTECTED]> wrote:
> For my 900MHz repeater, I'm looking at using hardline
> from the transmitter, to the duplexer, to the case of
> the repeater and out to the antenna.
Don't go overboard thinking hard line is a must have. If
your 900Mhz repeater system is a portable setup it might
be better to have good quality flexible line (coax).
> The RX will most likely be simple RG58 (since I have
> miles of it already with BNC and N connectors)
Forget the rg-58 at 900Mhz unless you want to numb up
your receiver for no good reason. Use some better coax
or feed line that might be rated for the higher
frequency range. Even mil spec rg-214 or 9913 is
much better than rg-58.
> and since there is additional filtering in the RX
> chain(s).
Relative to the big picture, the addition filtering
is nice but won't do a lot to help the crappy performance
of any rg-58 feedlines you use at 900MHz. Deep six
using the rg-58 idea.
> Since I only have to worry about the TX eating up
> the RX inside the box, I figure I'm pretty safe,
> even if the loss is slightly higher.
You've got to worry about a lot more than "only the
tx eating up the Rx inside the box".
cheers,
skipp
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