Simplex means the only one party in a conversation can talk while the other
listens, and they must trade off. Duplex means that both parties can talk
and the other will hear even if they are also talking (if they can actually
listen when talking!). Duplex is like a telephone (land line anyway) while
simplex is like a walkie-talkie. Duplex is much better, but requires two
channels active at the same time - one for each direction of the
communication.

Don
wrote in message
oups.com...
Guys,

does anybody know what difference it makes if a channel is simplex or
duplex? Seems to be that either way the result is the same?

Matt

does it make a difference with the regular small VHF? It seems mine can
only to the walkie talkie style anyways ....

Matt

On 9 Apr 2005 23:38:21 -0700, wrote:

does it make a difference with the regular small VHF? It seems mine can
only to the walkie talkie style anyways ....

This will explain it easily and quickly.

http://www.navcen.uscg.gov/marcomms/vhf.htm

Later,

Tom