[TowerTalk] Antenna Swittch - Grounded or Open Unused Contacts

Hector Garcia XE2K j_hector_garcia at sbcglobal.net
Wed Sep 8 20:27:45 PDT 2010


Keith

grounded  for my DXE  and open for the ameritron with my  5 band Quad

Is how works for me.

 J.Hector Garcia  XE2K / AD6D
Mexicali B.C  DM22fp
P.O.Box 73 
El Centro CA 92244-0073
http://xe2k.net
http://dxxe.org






________________________________
From: "ac9s at mchsi.com" <ac9s at mchsi.com>
To: towertalk at contesting.com
Sent: Wed, September 8, 2010 7:18:24 PM
Subject: [TowerTalk] Antenna Swittch - Grounded or Open Unused Contacts

I am about to replace my 30 year old Ameritron antenna switch with a DX 
Engineering unit.  It will be placed at the top of the tower to select between 
the various antennas - wire slopers for 160 and 80, inverted vees for 75 and 40, 
and the Steppir ( currently under repair) for the rest of HF.  I will not have 
multiple antennas selected at the same time.  What is best - to wire the switch 
so that unused ports are normally grounded or open?  My inclination would be to 
ground all the unused antennas, but since the switch is shipped normally open I 
have an element of doubt.

Thanks --

Keith
AC9S
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