[PVRCNC] FS 6 position antenna switch

alsopb alsopb at gloryroad.net
Fri Apr 29 07:39:25 EDT 2005


Guys,

I have one of those 6 position antenna switches FS.  It was an April 
QST feature.  I built two and need only one.  Sell for price of parts.
$40.

Description:
1) 12 VDC relays
2) 160 - 6M
3) about 1000 w PEP but really unknown.  Relays have a 20 amp contact 
rating
4) unused positions ungrounded
5) multiple positions can be switched (stack???)
6) operates of 10-20 volt DC power plug.  About 30 ma for each 
switched relay.

The reason that the second is for sale is that it was too lossy at 2M 
and above.  The QST article sort of implies it could be used there.
The tech who wanted it couldn't tolerate the VHF loss.

Here are some measurements done on it:
SWR all six ports < 1.2 :1 at 28.5 MHz.
Best ports 1:1 at 28.5 MHz
6M loss 0.2 db
2M loss 5 db

Assembled PCB and 6 position switch only.  No enclosure.  Author put 
his in a plastic kids lunch pail for remote use.  Requires one wire 
per port plus ground plus a 6 position switch.  One might get away 
with using coax ground.

73 de Brian/K3KO



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