Hi Bob: Not sure by your description , what type of CP antenna you have. Here is a link for the common old KLM. http://download.qrz.ru/pub/hamradio/antenna/klm/KLM-2M-22C.pdf
You have 3 options. 1. Surf the web for info, on how to rebuild the box and water proof it. 2. Surf for tips on how best to rewire the antenna for Fixed Right-Hand-CP. By removing the switch you maybe able to improve you gain and reduce switch induced losses. 3. Replace it with a M2, 2MCP22 I use to have the KLM 2m-22CP. I found the switch box unreliable and had high loss. The Driven elements were hollow aluminum tubes that would fill with water, Freeze and crack. After a few years I took it down and replaced it with the 2MCP22. I have had good luck with it and I do not miss the polarity switch. And I do not have problems with water getting into the switch or connector junction blocks. wf1f Miles > From: Bob- W7LRD <w7...@comcast.net> > Subject: [amsat-bb] 18 el cp yagi > To: amsat-bb@amsat.org > Date: Thursday, January 21, 2010, 1:49 AM > > > Hello > > I am refurbishing a 18 element CP yagi. I am not sure of > the manufacturer. I opened up the relay switching box and > found a lot of moisture (Yes I live near Seattle) in the > box. Lots of yuck and rust, on non stainless steel > hardware.. The 12V connector is a simple phono plug, which > should never be used outside. Before I reinvent the wheel > has anyone been here before? Replace the phono plug, > sealing everything. In the past I have used a material > called 3M5200, a marine sealant, nasty but almost > permanent. Suggestions please. > > > > 73 Bob W7LRD > > Seattle > _______________________________________________ > Sent via amsat...@amsat.org. > Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur > satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
