I would advocate "going clean" on the worst offender scenario and have pure coax going from the amp to the antenna. Same on the receive circuit and see if it goes away. You might hear a clean harmoni
Jim - K9YC stated: "You must have a LOT of separation. Where I think most of us run into trouble is between 80, 40, and 20 CW, because the harmonics end up where we're likely to want to operate on t
I do not have crane experience, but I am curious about one aspect by those that do. If you have a top assembly of a few tower sections, mast and long yagis all being hoisted as one assembly by a cran
I have dealt with this problem a couple of times on DXpeditions. Here is what worked for me and I use some of this solution today at my home station. I have found that central loading of elements tha
Isn't the point of a "crank up" tower to crank it up for activity and crank it down for wind and such? It may not come down when you frantically need it to, if its not come down in a long time. 73 Ed
Message: 5 To: w5prchuck@gmail.com Content-Type: text/plain; charset=utf-8 Paul, If you are driving around with an HF rig in your neighborhood, you will have a hard time finding interference that way
I have been using the MFJ998RT for 2 years now. Driving an 80M wire beam with nice gain but only 75khz bandwidth. I have separate stubs for CW and SSB but then tune for good SWR after that. The MFJ99
Is there an automatic tuner with an indoor power controller to supplement what is in the actual remote box? Would like to hear of that and what the cost is. I have essentially done what you are conce
Having owned Telrex from the 70s, F12 and M2 from the 90s, M2 and built my own currently, elements are not what they always seem. The 6 - 8 el 20M yagi discussion shows that clearly. An 8 el yagi on
Paul, Sounds like a great project ahead. In addition to HFTA, you need to ask yourself "what's my goal?". Is it DXing? DX Contesting? Domestic Contesting? A mix of all? No answer will be optimum for
Hard Line is available if you keep a sharp eye out for it and go to a few of the hamfests. I have 1500 ft of LDF5-50 and 300 ft of LDF4 here and my average cost is $1.50 a ft delivered or picked up.
John, If you can spread that need across a few years, you can keep the average price down on the used market. If you need 5000 ft today, then its going to be time to get the checkbook out. Ed N1UR I
I believe that in addition to seeing if there is local "ham club knowledge" you need to do a little sleuthing. PRB-1 says that a municipality cannot arbitrarily restrict ham antennas. So see what the
I agree with Alan if you can get it. If you can't - its decision time. Reduce the risk with the suggested investigation. Ed Do what Ed says, but also suggest that you include in any offer letter that
K6OK stated - "Wouldn't you want the opposite? If a county has a blanket height restriction on all types of structures, and that height limit is lower than my planned towers, then I would avoid that
I have climbed a lot of ham towers and seen many more. I can't ever recall seeing an anti-climb device being used. Texas, Michigan, all the New England States. Is it really that common? Funny that I
There is really no good substitute for low loss feedlines than hardline. Hardline uses a lot of copper and copper is not cheap (getting more expensive recently). An alternative would be to mount an a
Interestingly - none of Trilogy Coax's spec sheets are available? What is the loss per 100ft of 7/8 inch hard line at 28Mhz? For LDF5-50A its 0.19db. Ed N1UR _________________________________________
John. Most of us would run 2 radios worth of hard line to a central spot and then have a 2 x 6 - 2 x 10 antenna switch that feed all the antennas in the field. This cuts the feed line expense substan
There is no one perfect height for the "South facing yagi" for DX Contesting. Is it a Carib antenna, a zone 7 antenna, a PY/LU/CE antenna? Those are different heights for optimum angle for each band.