<But with conditions like this as a regular thing,the band would not be the <topband any more. happy new year de wolf -df2py Yeah, but could I just have the 1997 conditions for a few nights to get 20
While sunrise peaks are common here in central Florida, they die quickly and the band quietens & dies for the day. On the morning of Jan. 14, I had sunrise at 0718 EST, noticed no sunrise peaking sig
OK, I am convinced to try replacing my FT140-43 core with some of the smaller and higher permeability cores, as a test. Ordered some FT114-77. But the following still needs to be taken into consider
produce Mesh should probably be used only as a ground reflection enhancer under a small elevated radial system, with the mesh connected to NOTHING. Since the inverse square formula is at work here,
torch. I think you have found the problem Don. It's the LEAD! I just went out to shop & am looking at a roll of copper pipe solder from Lowes. It is Oatey brand solder & says 95/tin, 5/ant. I assume
one. these The easy way to protect the RX only front end is to shunt the receive only jack externally, with two switching diodes connected polarity reversed. I.C.E. uses this config. successfully in
Jay, Anyone looking for new ideas gets my attention. Keep it up. My opinion is that radials can only function below the vertical. The wave radiated from the vertical must immediately become 511 feet
Gentlemen: It is generally accepted that low gain receive antenna coax lead-ins, from Beverages to Flags, must be well shielded, balanced and choked, to prevent unwanted signals and noise from enteri
separate Don & David & others, The single coax shield with twin center conductors would be excellent, if available. A multitude of problems now faced with the darn unbalanced feedlines would be solv
Thanks guys for all the advice & offers for cable. There is Belden 1808A, Twinax & several rip coax cables that will work. These are quite expensive compared to just using two RG-58's for the balance
Thanks Tom for the clear "balanced vs. unbalanced" treatise. I had planned to ask questions about shielded Flags on down the log, but decided to it now, while the iron is hot. The Little Gunn despera
distance is I used a series of RF relay points to disconnect a 20 ft tall (100ft wire) zig-zag topload from a 60 ft tower, expecting to get resonance on 80m. Due to the capacitance through the open
Paul is QRT for now, but what a summertime show he has put on for us! Last night I was working on my PC's bios, saw it was 0255z, so connected vertical & had a copy for first time on ET3PMW thru loca
certain characteristic. In ON4UN's book on page 7-6 are 160m patterns for 292, 577 & 879 foot long beverages. The first has a very broad pattern similar to a Pennant antenna, the second & third beve
If ground is excellent, reduced wavefront inclination deminishes signal strength received. A steel wire(s), or coiled copper wire under the Beverage length could likely increase inclination by slowi
When it rains, the usual 1.5:1 SWR rises to 1.7, & drops back to 1.5 as the ground dries out. Recently I gave the lawn its quarterly "dose" of lime & 10-10-10 fertilizer. After big rains, I could sud
Earl, K6SE: Per NASA commissioned study back in the 80's, most lightning strikes are from the ground up. Two metal poles were erected a short distance apart, one grounded, the other base-insulated. T
jelly Squirrels hate the taste of coax! But they are apparently driven by nature to intake compounds missing in their diet. After rains I have noticed the squirrels licking my coax, and the treated