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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 -- -------------------------------------- Diagnosed Type II Diabetes March 5 2001 Beating it with diet and exercise! 297/215/210 (to be revised lower) 58"/43"(!)/44" (already lower too!) -------------------------------------- Visit my HomePage at http://members.shaw.ca/finkirv/index.html Visit my Baby Sofia website at http://members.shaw.ca/finkirv4/index.htm Visit my OLDTIMERS website at http://members.shaw.ca/finkirv5/index.htm -------------------- Irv Finkleman, Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP Calgary, Alberta, Canada |