Hi Ken,
Shouldn't be a big problem if both repeaters have both
physical and electrical distance from each other. Both
would probably require dual port (min) circulators -
isolators and individual antennas with the mentioned
physical and electrical isolation.
The best option is a trade and also depends on
where you can put the antennas on the tower. You can
do it all on one antenna, but you'd be stuck with
using a hybrid and a net loss of 50% (min) power.
If you'd like the best receive option, duplex both
receivers off a top antenna with one transmitter.
Run a lower antenna for the second transmitter.
The frequency spacing would normally require a one
antenna hybrid, which eats about 50% of your power
into a termination or load port. Smart money would
just add a second antenna for the second transmitter.
cheers,
skipp
www.radiowrench.com/sonic
Ken Arck [EMAIL PROTECTED] wrote:
Hi folks
Imagine this scenario. 2 quality, UHF repeater colocated at
the same site. Both repeaters are higher power ( 50) out
of duplexers, duplexers are high quality BP/BR types. Here's
the kicker - they're spaced 25 Khz away from each other but
not inverted from each other.
Now, theory is one thing as to the interference potential
without resorting to mulicouplers and combiners. But what
is the real world problem potential? Anyone want to take
a stab at this one?
Ken
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