It really depends on the degree of screening provided by the elevated radials and the distance in wavelengths the elevated radials are above the ground. If the screening is minimal (as is the case wi
Worth noting when evaluating the N2IC report is that the C31XR has an effective boom length of 25 feet on 20 meters, 22 feet on 15 meters, and 25 feet on 10 meters. The C31XR compares favorably with,
Here are some model comparisons for various SteppIR models vs. other "multi-monoband" yagis done at various times several (8 - 10) years ago: Here is a comparison of the three and four element SteppI
Unless you can derive an appropriate dielectric factor for the tubes used in your SteppIR, the element lengths derived from any modeling program will be too long. Years ago K7IR told me they worked
I'm happy with my 4L but it would be nice to have some more smoke. What might be interesting are some longer boom more limited band combinations, with higher performance e.g. 6 L on 15/12/10 or 5 L
If you are talking about a *new* antenna your choices are pretty much limited to the Cushcraft A3S and the HyGain TH-3MK4, EXP-14. If you push the price point a bit, you can add the HyGain TH-5MK2 ($
*ANY* horizontally polarized antenna will have similar vertical take off angles at similar heights. The vertical pattern is a simple matter of beam formation between the antenna and its "image". One
On 2015-04-12 2:56 PM, David Blake via TowerTalk wrote: and I on the other hand would suggest you look 1st for a used Mosley. With only Mosley yagi's I am #1 Honor Roll (all 340 DXCCs) and total DXCC
No Doug, your "facts" are opinions and wishes. Facts are backed up by objective proof - you have none. In objective head to head tests the Mosley antennas are repeatedly worst in class. That's not to
The main issue with the Mosley PRO antennas we tested was on 10 meters where gain and pattern were definitely below spec. Stan, Ward obviously failed to reread his document before making that statem
And the difference need not all be dissipation. Any antenna with "gain" concentrates its radiation in the desired direction(s) by "stealing" it from other directions. Not necessarily. At 1500 W from
Hy-Gain TH-3MK4 $499 from www.Hy-gain.com or $469 from www.dxengineering.com. While the multi-monoband antennas are undoubtedly better performers than the older trapped tribanders, the Hy-Gain design
I think the rule of thumb is to use a conduit twice the diameter of the cables. I remember having one heck of a time pulling two 7/8" hardlines through a 4" conduit for a C-band satellite installatio
Mosley's TA series antennas are not balanced feed points. They strap one side of the driven element to the boom - that severely unbalances the antenna *even if one uses a balun or choke*. Depending o
73, ... Joe, W4TV 73, Roger Mosley's TA series antennas are not balanced feed points. They strap one side of the driven element to the boom - that severely unbalances the antenna *even if one uses a
The Classic 33 and Classic 36 (along with the newer CL-33WARC and CL-39M) are a completely different design. The feed point is "balanced capacitive" with no ground strap like the MP, TA and PRO serie
Gerald, they typical solution is to cascade a 4:1 current balun *and* a high choking impedance common mode choke. The problem is maintaining the high impedance across the entire operating range of th
Absolutely! If the signal is at the noise level, 1.2 dB can make the difference between no QSO and easy copy. 73, ... Joe, W4TV Best regards - Brian Carling AF4K Crystals Co. 117 Sterling Pine St. Sa
The Rohn 25AG2 section has a 2' 9" length of 2.25" OD x 2.06" ID tubing for a "nose". The only place the AS25AG accessory shelf will fit is in the 1' 3 3/4" open space right below the top tube with t