Juan,

The instructions for the polarity switch were written for the shorter version of the antenna. There are some differences in the installation for the 42 element version. Attached to the direct mail is copy of a more recent version than you have. It helps with some, but not all, of the issues. The drawing has the new dimensions for the rear shorting bar. There is a note for the front shorting bar saying "Shorting bars remain here at 4.375 inches."

Hope this helps.

73s,

Alan WA4SCA

-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Juan Antonio Fernandez Sent: Sunday, August 14, 2011 1:36 PM To: amsat-bb Subject: [amsat-bb] 436CP42UG polarity switch update manual of M2 ???

In order to update the 436CP42UG M2 antenna with the 436 Polarity Switch, I can read in the 436 Polarity switch update Manual of 11-29-00 in the point 10. "Re-install the shorting bars on the rear driven element. Set de bars at the dimension shown on the "Antena dimensions" sheet. Note: On the 436CP42UG, the rear shorting bars are at a different dimension than the front driven element shorting bars".

In the 436CP42 U/G Assembly Manual Rev. 5-20-96 of 10-6-95, in the antenna dimensions sheet, I can read only one dimension for the shorting bars of both driven elements "4,375?".

Can somebody help me?

Please answers in -bb or at [email protected]

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