- Original Message -
From: "Elan Portnoy"
To:
Sent: Wednesday, November 04, 2009 6:24 AM
Subject: [amsat-bb] Please help me design a polarity switcher...
> I have both vertical and horizontal elements of my 70cm yagi coming into
the shack via separate runs of LM400. They meet in a box wi
For VHF/UHF you need proper good quality co-ax relays.
They're not cheap and those available surplus are often 28/48/110V coils.
Elan Portnoy wrote:
> I have both vertical and horizontal elements of my 70cm yagi coming into the
> shack via separate runs of LM400. They meet in a box with bits of c
Try this
http://www.kb0nly.net/ant%20switch.html
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Elan Portnoy
Sent: Tuesday, November 03, 2009 9:25 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] Please help me design a polarity switcher
