Going from loop to vertical involves two very different lob patterns. It was never mentioned if the antenna performance was to favor local or DX. Here is one which it does not matter as it adapts for both. A nice compromise antenna which takes into account: ---high and low angle lobe patterns ---good match (resonant on 80m) ---small footprint ======DESCRIPTION===============================
INVERTED-L: 33 ft vertical, 33 ft top wire, feed at base against 12 16ft radials. I use Radio Shack low loss 300 ohm tv wire for feed According to calculations EZNEC had a 40ft top wire. In the field I trimmed it until we got an acceptable match on several bands For supports I have used the DK9SQ mast as the main and used the Black Widow 20ft for the end support with great success ---------------------------------------------------- I use RCA connectors for many of my antennas. I install male RCAs on wires and interconnect with using DOUBLE FEMALES. For 300 ohm TV wire I will solder short piece of speaker wire to each of the conductors and then securely tape the soldered area to the ribbon insulator body . To the end of each speaker wire I afix a MALE RCA. Generally I will make one speaker wire on each end a little shorter (3/4 inch) so I can tell easily identify which wire is which. The RCAs work great and it they break off in the field I carry wire nuts for emergencies ---------------------------------------------------- I have EZNEC pattern (PDF) for several bands and also a sketch for the 300 ohm connection if you want more details ---------------------------------------------------- Note at the QTH I have used this for 80 and 160m with good success including contacts with Japan on 160m. I am sure the key is the other fellows has HUGE arrays but it worked. Hope this helps Alan KB7MBI ______________________________________________________________ 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
