[Elecraft] [OT] Duplexer/Diplexer

[Fred C. Jensen]

Used triplexers for years, HF, 2, 70 cm, one run to tower, worked great. I think mine were Comet. Just watch the SEE with higher power.

Fred K6DGW

George Pasek <pasek001 at umn.edu> wrote:
>2 Radios, 2 Antennas, 1 Coax.
>
>That pretty much says it all.  I currently have a KX3 and a 2-meter rig (but I’ll probably be outfitting the KX3 with 2m’s in the future) and I use a HamSticks for HF or a 1/4 wave GP for 2 meters.  Running another coax here is not a option (apartment) so I have been swapping radios/antennas.  Now I’m thinking of using two HF/VHF Duplexers (or Diplexer as they are also called) to join/split the RF.  For example using two of the MFJ-4916S, one port is 1.6-56mHz and the other is 140-540mHz.  Hf power output is limited to the KX3 (12w?) and VHF is currently the IC-2300H at 65w.  I understand that there will be insertion loss/isolation issues.  I have never pursued using splitters on a coax feed before and tho two simple A/B switches (manual or remote) would work better, I’d just like to keep things simple.
>
>From what I have been reading, the Diplexer route looks like it should work fine given the above?
>
>tnx
>de George
>WD0AKZ
>dit – dit
>
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