[CQ-Contest] HF Triplexers

[Aldewey at aol.com]

Jim;
 
I've been using the INRAD Triplexer with switchable Dunestar filters on  
each radio for about a year now and have been happy with the results.  As a  
low power contester with a single 4 band yagi, it's almost like adding two  
additional yagis to my station.  I get a lot better results with SO2R now  
than I did using a vertical or dipole on the second radio.
 
You do need to be sure you have low SWR on all 3 bands and, of course, be  
sure to use some type of bandpass filters with them.
 
I did notice that the attenuation on the direct harmonic band near the  
harmonic frequency was not as good as I would have liked (i.e listening on 10  
while transmitting on 20).  Other than that, this setup works  great.  
 
If interested, I did a short article on this in the TCDXA Newsletter  at:
 
http://www.tcdxa.org/Newsletters/December2012Grayline.pdf
 
See Page 5.
 
Good luck, Jim.
 
73,
 
AL, K0AD
 
 
In a message dated 12/26/2013 8:22:57 P.M. Central Standard Time,  
Jimk8mr at aol.com writes:

I have  the good fortune of needing to acquire an HF triplexer for the   
upcoming WRTC2014 in July.

I know of Inrad and Dunestar (plus the  4O3A high power one, which is  out 
of my price class). Any others  available in the market? Does  anyone have 
any 
experience or other  informed opinions on this subject?


73  &   HNY,

Jim    K8MR


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