Add more short (50 - 60 foot) radials, IMHO. Some 45 years ago I worked as a wireless operator in fixed service on 60m band (my call has been 4NC24L) and we used L antennas. At my surprise, ground was just 3' of galvanized pipe knocked into the ground. At company's electrician workshop I got heap of scrap insulated copper wire different lengths which I used to lay down some 40 or 50 radials different lengths, (in a half circle due to building in which we were located). My signal improved so much net control asked me what I was done and was asked to travel to another stations to install radial systems there as well...
73, Mirko, S57AD V V pon., 2. sep. 2019 ob 21:08 je oseba N4ZR <[email protected]> napisala: > More as an experiment and a thought-provoker than anything else, I've > started adding 50-60-foot, on-the-ground radials to my 135-foot inverted > L. In the latest incarnation I'm up to 4 radials. On my ancient > MFJ-259B the lowest SWR is 1.3:1 at 1825 KHz, with an R of 77. X=0 (the > 259B doesn't give the sign of j) from 1808 to1894, which I assume is > roughly centered on the actual cross-over point. > > With my rudimentary knowledge of such things, I'm guessing that there > remains something on the order of 50 ohms of ground resistance to be > reduced for efficiency, through addition of radials. Question is, > would I profit most by adding another 4 50-60 foot radials, or 2 radials > each 100-120 feet? > > Comments appreciated. > > > -- > > 73, Pete N4ZR > Check out the Reverse Beacon Network > at <http://reversebeacon.net>, now > spotting RTTY activity worldwide. > For spots, please use your favorite > "retail" DX cluster. > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > -- Mirko S57AD _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
