If I remember correctly, the HyGain Explorer 14 used "Parasleeve" (their copyrighted name for open sleeve) 10M elements for the 10M DE which resulted in improved SWR Bandwidth on all 3 bands. The ful
If I remember correctly, the HyGain Explorer 14 used "Parasleeve" (their copyrighted name for open sleeve) 10M elements for the 10M DE which resulted in improved SWR Bandwidth on all 3 bands. The ful
I use 4 Johnson Matchboxes on various dipoles plus a couple of Drake MN2000 tuners on coax fed antennas for 80 and 40M. Here are 2 additional ways to tune antenna tuners: 1 - start on Receive and adj
If you mean FULL SIZE elements, most of the 40M beam that LAST start with 2 inch o.d. tubing at the center (some with fairly thick wall tubing) and use reducers. I'm VERY pleased with the performance
The SIMPLE solution is to take off the cover and LOOK at the output capacitor. Adjust the knob until the plates are fully meshed, and NOTE the position of the POINTER. Tom N4KG ______________________
Sometimes, Minimum Reflected power can also occur with Minimum (or reduced) FORWARD Power. That's why I like to start by tuning for Maximum Forward Power when using a solid state transmitter that has
The SIMPLE solution is to take off the cover and LOOK at the output capacitor. Adjust the knob until the plates are fully meshed, and NOTE the position of the POINTER. Tom N4KG ______________________
If you mean FULL SIZE elements, most of the 40M beam that LAST start with 2 inch o.d. tubing at the center (some with fairly thick wall tubing) and use reducers. I'm VERY pleased with the performance
Sometimes, Minimum Reflected power can also occur with Minimum (or reduced) FORWARD Power. That's why I like to start by tuning for Maximum Forward Power when using a solid state transmitter that has
I once put a 3L15 inside my Telrex 3L20. It played 'fair' but analysis showed it to be about 2 dB down from what could be achieved if the 3L15 were in the clear. The 20M director acts as an 'ineffici
It is also possible that the MAST is slipping in the U-bolts of the Rotor, OR, the BOOM is slipping on the Mast. I've had that problem when 'single' nuts worked loose on the U bolts. Tom N4KG On Tue,
A FULL SIZE 3L20 on a 24 ft boom MAY achieve 8-8.5 dBi gain. That is 6-6.5 dB over a dipole. And you believe the little A3 on a 14 ft boom might have the same gain in 20M? NO WAY. A FULL SIZE 3L20 on
As I posted MANY times, MOSLEY (and most of the other manufacturers) will send FREE antenna manuals just for the asking. WHY do so many ask others to go to the trouble of copying and sending manuals
Pete, Please explain WHY you would think a 24 ft boom TH7 would have a higher F/B than a 14 ft A3? It is a well known fact that 2L parasitic Yagi's have relatively LOW F/B (<15 dB, often <10 dB). If
Does this mean YOU would be willing to take the data and publish a FREE Antenna Comparison Report for the benefit of your fellow amateurs? When can we expect the results? Tom N4KG p.s. To what "real
I put my bare CATV hardline in shallow open trenches across the yard. I've run it both inside and outside the tower, strapped to the legs. Runs range from 200 to 600 ft. I live in the country and mow
I have long deleted your original post on this topic so I don't have a clue as to your first question. IMHO, your ATTITUDE still comes across as inconsiderate. You take a few seconds to whip off a qu
Rob, I've had considerable experience with single element Long Wire Antennas, mostly on the WARC Bands where an 80M dipole acts as a current fed Long Wire of odd multiples of 1/2 WL. These are VERY e
YES YOU DO ! (have the test equipment to determine it experimentally) Connect your amplifier and antenna to the switch. Connect a Wattmeter (or RF millivoltmeter) and Dummyload to the 'other radio' p
Actually, Rohn manufactures 5 different types of "pointy top" sections plus the "flat top" section. See the Rohn catalog for details, including the PIPE Diameter at the Top which range from 2.0 to 2.