[amsat-bb] Re: Diplexer
Nigel Gunn G8IFF/W8IFF
nigel at ngunn.net
Sat Apr 9 07:11:29 PDT 2011
Either term is equally correct.
The prefixes di and du both indicate TWO, so it multiplexes two signals. A triplexer multiplexes three.
On 09-Apr-11 13:36, Gordon JC Pearce wrote:
> On Sat, 2011-04-09 at 12:22 +1000, Andrew Rich wrote:
>> Duplexor = tx rx more than one freq
>> Diplexor = rx only more than one freq
> Not quite; a duplexer is typically used where you want to TX and RX
> simultaneously on quite close frequencies like in a repeater, and a
> diplexer is more commonly used where you want to TX *or* RX on two
> different bands.
> So for combining a VHF and UHF aerial into a dual-band receiver, you'd
> use a diplexer. For separating the TX and RX frequencies at a repeater,
> you'd use a duplexer.
> Gordon MM0YEQ (who is getting sick of having to tune 456MHz/461MHz
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF 9H3GN), e-mail nigel at ngunn.net www http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club International #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC, GCARES, XWARN, EAA382.
More information about the AMSAT-BB