Hello John; The short verticals (I use 23 feet) used for RX only - are not resonant, so they are not nearly as affected as full size (1/4 wavelength) verticals. There is some concern with "active" verticals - those that use a high impedance buffer amplifier and how close to buildings, towers and trees they can be and still work well.
"Passive" antennas like Beverages and the VE3DO loop appear to work ok - close to other objects - like being in the middle of a tree forest. 73 Tim K3LR -----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, October 3, 2024 11:59 PM To: [email protected] Subject: Re: Topband: Low frequency RX antenna Wow, I had no idea that K3LR is not using Beverages! Don't verticals need to also be away from towers to keep from having their pattern skewed? I had a small lot at my P40A station and I used a K6SE Pennant. I liked that it was ground independent. The Pennant was definitely better on RX than my transmitting vertical however stations with Beverages heard much better. John KK9A Tim Duffy k3lr wrote; Hello Lee; Great to hear from you. Yes - I have a pair of VE3DO loops - spaced 5/8 wave length - aimed at Europe (also can be switched to 225). Then a single VE3DO loop for 135/315 degrees. It is all about more choices. I have a HI-Z 8 circle and a HI-Z 4 square - also spaced 500 feet apart - broadside on Europe. There is a 5 element parasitic vertical Yagi for 160 that we use for TX and RX - that has tremendous F/B (for 15 KHz of the band). This was published in the Yagi chapter of the last three editions of the Low Band DXing book. So 3 main sets of RX antennas. Any two of these RX antenna arrays can be fed to the DX Engineering NCC-2 for antenna combining to develop incredible directive patterns. Beverages need to be away from towers and other antennas to work well. I just cannot get them far enough away on this property to work - so they are gone. The short vertical arrays work great. Twice we have worked over 100 countries in a weekend on 160 meters with this setup. I am 1 mile from Ohio J 73 Tim K3LR _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
