Steve Nosko wrote:

"crb" wrote in message ...
What are the functions of each of these?

Are they used on TX or RX circuits?

I know a cell site uses a duplexer so that it
has an extra RX antenna for diversity. How
does this work? Is the duplexer on the antenna
that transmit/receive combo antenna notching
out the TX frequency so the receiver doesn't get
overloaded by it?

Crb,

These are basically filters. The terminology varies sometimes
for "diplexer" and "duplexer", and they are both used to describe the same
or different things. I'll give the way they are used in my field - two-way
radio and cell phone systems.

(Snipped for Brevity)

Hope this helps.

73, Steve, K,9.D;C'I

Nice answer Steve! I learned a few things myself!

Irv VE6BP
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