To Test diversity, take an A/B switch and connect to (example) a traditional 20 meter dipole on position A, and a vertically oriented dipole on position B.
Use separate coaxial feeds. If the antennaa are low (example feedpoints at 25 feet) and the building you are in is close to the antenna you will find that one of the antennas or the other can be 2 or more S-units stronger than the other even though they are both effectively at the same height. This is because at low elevations the antenna often gets the signal from some kind of a reflection. The advantage of one antenna over the next will last only a few seconds before the roles switch. This is a very simple example of the of diversity. N1EU and others use variations of this idea with longer antennas at lower frequencies to optimize LF DX. [Elecraft] K3 Diversity Lyle Johnson kk7p at wavecable.com Fri Jul 4 15:48:19 EDT 2008 Previous message: [Elecraft] K3 Diversity Next message: [Elecraft] K3: KRX3 question Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] -------------------------------------------------------------------------------- > OK, I have to ask. WHAT is diversity? Two receivers tuned to the same > signal, what is the advantage gained? If each receiver is attached to a different antenna, perhaps one horizontally and one vertically polarized, you might hear better in one or the other as propagation shifts. If both are attached to the same antenna, there isn't much gain to be had :-) Lyle KK7P _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
