[CQ-Contest] Triplexer/combiners 20-15-10 meters

Mark n2qt n2qt.va at gmail.com
Mon Jan 2 11:34:52 EST 2017

I chose the inrad version based on the better isolation figures in the QST review. Also the
Inrad uses toroidal rather than the dunestar's air wound coils which I liked better. (I had
tried a home brew version with air wound coils and found it difficult to eliminate coupling
enough to allow stable tuning. The dune star has this figured out no doubt but I figured it
was one less thing).

I run 100 watt rtty with no issues.  It is also somewhat easy to repair (haven't had to retune) 
when you forget and put a kw through it. 

I do believe you need better bandpass filters than the ICE 419 variety to be safe. (I ended up
adding coaxial stubs to help it in my set up). 

Mark. N2QT

> On Jan 2, 2017, at 1:24 AM, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:
> Does anyone have any comparative knowledge on Dunestar/Inrad/VE6AM  triplexers?
> The Dunestar is considerably cheaper than the others.  I have very good band pass filters from Array Solutions so I just need the box.
> Thanks in advance!
> W0MU
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