Greetings all Elecrafters! First, i need to preface this with a sad confession: I don't have an Elecraft. :( But, by the time this is all finished, I'm pretty sure I will!
I am here on the advice that many of you are very much interested in radio experimentation, and i feel this group is particularly suited to doing some really significant radio science. We can get a lot more sophisticated as we move along, but here's something nearly every ham can do, and this will allow us to build up a really good baseline instrument for further experimentation with X and O mode propagation. It involves the construction of a very simple CPOL horizontal turnstile antenna, with switchable sense. For those with space limitations, this can be built as an inverted vee, with a single supporting pole. Two inverted vees at right angles, fed with transmission lines with a 90 degree phase shift. To keep things simple, we can start with a single frequency antenna, tuned for 15 MHZ, using WWV as the reference transmitter. Once you have this antenna in place, we need to do just one quick test. it is this: Do you see a significant difference in the signal strength of WWV when you switch from RH polarization to LH polarization. That's it. I'll tell you the implications in a later installment, but first I'd like to hear what YOUR observations are, AND your interpretation of what you see! I will need your QTH coordinates. I will guarantee you this will be FUN and informative! ERic -- Eric P. Nichols, KL7AJ, NNN0AKA, WD2XSH/27 P.O. Box 56235 North Pole, AK 99705 (907) 488-0483 [email protected] [email protected] [email protected] http://ericnichols.net ______________________________________________________________ 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
