Hi Howard, VE4ISP
In a separate email I have sent to you the zipped files of the first and second part of my article: "Switching Four Polarizations on a 70 cm Crossed Yagi" that was published into the AMSAT Journal March/April 2007 and May/June 2007 The article is for a 70 cm crossed yagi with the elements spaced 1/4 wavelenght over the boom but you can scale the lenght of the coax lines and delay lines also for 2 meters. You will get four polarizations, H-V-RHCP and LHCP good for Tropo and Satellite use.
If someone is interested in the above articles please let me know off line.
73" de
i8CVS Domenico
----- Original Message ----- From: "Howard Kowall" [email protected] To: "AMSAT BB" [email protected] Sent: Saturday, March 26, 2011 7:50 PM Subject: [amsat-bb] (no subject)
Hello All Before I start I am not cheap just frugal Want to make my antenna polarization selectable with relays LHCP or RHCP For both UHF and VHF I really don't want to buy a commercial ones Does anyone know what type or where I can purchase theses types of relays I would like to have them rated for aprox 50w for UHF and VHF 12vdc coil would be nice,I plan on energizing them with a separate power
supply
Thanks to all who read and respond to this Howard VE4ISP _______________________________________________ Sent via [email protected]. 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