Topband: 160 meter 1/4 vertical

Hi guys, currently working on getting a radial net worked into my garden & pavement. Appr 40 radials ranging from 10 to 40+ meters. I can raise vertical to appr 37 meters. main interest is 160 meters. I would liketo use this vertical for 80, 60 and 40 meters. Considering end-fed configuration for 8

Re: Topband: 160 meter 1/4 vertical

Forget about the high impedance issues on 40 and also 80. IMHO the best and easiest solution for you is to make some simple wire decoupling sleeves or wire cage for the higher bands and they could be current fed like 160 meters and much less complicated to feed without extensive matching. Also 1/

Re: Topband: 160 meter 1/4 vertical

The free-space pattern of current in a vertical (and also horizontal) antenna is crescent shaped with its maximum at the midpoint, and a minimum at each end. It shows nothing that could be termed an extraneous lobe. Any such lobes would seem to be the result of improper matching, or more like

Re: Topband: 160 meter 1/4 vertical

Respectfully, there's a lot of misinformation here. "Clearly, size matters." If you are saying that the taller a vertical then the better the signal, then that is simply *not the case*. It is a very well established fact that a 160m vertical taller than λ/4 has little --IF ANY-- DX advantage. (Rat

Re: Topband: 160 meter 1/4 vertical

Please check the pattern on 60 and 40m where the 37m high vertical is going to be used. You certainly will see the high angle lobes. 73 Peter -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Charles Moizeau Sent: Dienstag, 4. Juli 2017 00:10 To: Herber

Re: Topband: 160 meter 1/4 vertical

Here's some interesting comparisons of the patterns of 1/4λ vs. 5/8λ mobile antennas. www.w8ji.com/VHF%20mobile%20vertical.htm 73, Mike www.w0btu.com _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: 160 meter 1/4 vertical

Many have tried balloon or kite supported 5/8 wave verticals on 160 with disappointing results. I used to have a 308 self supporting tower which i could use at night on 160 but it never ever beat a corner fed delta loop supported by the same tower. On Mon, Jul 3, 2017 at 6:38 PM, Peter Voelpel

Re: Topband: 160 meter 1/4 vertical

Hi Herb, just curious. I presume that was essentially a full wave delta loop. How was it on 169M on receive? Compared to Beverage? Other? 73, Joe K2XX Herbert Schoenbohm Monday, July 3, 2017 7:00 PM Many have tried balloon or kite supported 5/8 wave ve

Re: Topband: 160 meter 1/4 vertical

We've run balloon supported 1/4 wave and 3/8 wave wires over our buried radial field with great results for contests. The balloon is a pain with any weather or wind but loads of fun. Cecil K5DL > On Jul 3, 2017, at 6:00 PM, Herbert Schoenbohm > wrote: > > Many have tried balloon or kite sup

Re: Topband: 160 meter 1/4 vertical

The delta loop corner fed. Which corner? Makes a huge difference, doesn't it? Make this a great day Dale > On Jul 3, 2017, at 5:34 PM, Cecil Acuff wrote: > > We've run balloon supported 1/4 wave and 3/8 wave wires over our buried > radial field with great results for contests. The balloon is a

Re: Topband: 160 meter 1/4 vertical

I erected a 50 ft self-supporting grounded aluminum tower last fall, with a triband beam as a top load. I installed 137 radials 30m long (because I could!). I first shunt fed it on 160m and it works well. I added 80m shunt feed this spring and it is superb. I modeled 40m and 30m in NEC4.2.