[amsat-bb] Re: switch box

i8cvs domenico.i8cvs at tin.it
Fri Jan 22 13:24:40 PST 2010

  Hi Bob, W7LRD

  Your switching box is the KLM model CS2 suitable for 70 cm crossed yagi model 435-18CX or 435-40CX and it is enclosed into a completely sealed aluminum box so that a weep hole in the bottom is recommended to prevent umidity condensation inside of it.

  I have removed the above CS2 switching box for only RHCP and LHCP on my 435-40CX crossed yagi and I have designed and built e four polarizations switcher for V-H-RHCP and LHCP as described by my articles into the AMSAT Journal  March/April 2007 and May/June 2007 

  If you cannot get the above AMSAT-Journals please let me know and I will send to you a copy via Stan W1LI  because your provider @comcast.net rejects all emails coming from my provider @tin.it

  Best 73" de

  i8CVS Domenico

  ----- Original Message ----- 
  From: Bob- W7LRD 
  To: domenico.i8cvs at tin.it 
  Sent: Friday, January 22, 2010 7:21 PM
  Subject: switch box

  Hi Domenico

  Thanks for your pictures.  Attached are some pictures of my switch box. I am not sure what the brand of this antenna is.  It has been recommended that I have a weep hole in the bottom.  What do you think?  There is sealing material called 3M5200 a marine sealant, very nasty but almost permanent and very wx resistant.

  73 Bob W7LRD

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