Not to pick nits, but to clear up a point Eric. While radials are not required for a center fed vertical the salt water surrounding the antenna is still important and the vertical will work much better on a beach than in the desert. The intermediate field conductivity is very important to the take off angle of any vertical, but the only thing you can do about it is to move. The US Navy is fond of the center fed vertical for ship board use, even when they have a great built in ground plane. The Force 12 is an antenna that I have not looked at carefully. I will have to do that. Willis 'Cookie' Cooke K5EWJ
________________________________ From: eric manning <[email protected]> To: [email protected] Sent: Mon, August 2, 2010 12:23:17 AM Subject: [Elecraft] antennas for Susan Susan Said: the antenna farm will most likely be vertical and located right at the shore line. What suggestions do you have for me to construct for antennas? ________ I had very good luck with a Force 12 Sigma 5, a CENTRE-FED inductively loaded short half-wave vertical [i.e., a short centre-fed dipole tipped up on one end ] on the Bay of Bengal shoreline. It being a centre-fed half-wave, not an end-fed quarter-wave, I didn't have to worry about an efficient ground-plane,so no lossy radials, and on the shoreline of salt water it really got out. Very good reports with a K2 at 10w. It also fits into a gym bag. I think a Caribbean DXpedition also used similar antennas and K2s near salt water. eric VA7DZ -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
