[Antennas] Butternut Vertical

2002年8月18日 15:01:34 +0000

Yes what you say is partially true .....
But between Jan 2000 and Apr 2000 (just 4 months) I worked 5 Band DXCC and 
210 countries with a ground mounted HF6-V with thirty two 66' radials. Yes 
you can work em without the radials but it is a whole lot easier and a 
WHOLE LOT LESS FRUSTRATING with the radials 8^)
The moral is spend your time catching the last rays of summer and plant 
some radials , you won't sit in line as long when it comes to working the 
pile up later and you just might work one of those rare ones that you would 
chance missing when your signal is down another 10db (at least) with out them .
As a long time planter of radials I've never been able to understand 
peoples aversion to doing it.
Dave
PS: I gave up on raised ground planes years ago not because of they were 
better or worse performance wise (please lets don't open that debate 
again...although its been a while) but because they became a maintenance 
nightmare every time the wind blew, not to mention deer and large birds and 
the occasional human who got garreted!
At 10:09 AM 8/18/02 -0400, Jim Dockery wrote:
>Well put.
>>Jim, WB2HBZ
>>>-----Original Message-----
>From: [email protected]
>[mailto:[email protected]]On Behalf Of Nelson Moyer
>Sent: Sunday, August 18, 2002 10:09 AM
>To: [email protected]; George, W5YR
>Cc: Jim Boyd; Antenna Net
>Subject: RE: [Antennas] Butternut Vertical
>>>While I grant you that ground mounted verticals operate most efficiently
>with radials, I think it's a stretch to state to a new HF operator that they
>MUST have radials to work. I worked 305 countries on the DXCC list and
>5BDXCC in 10 years using the Butternut HF6V, mostly ground mounted, with
>nothing but one 8 foot ground rod driven all the way into Iowa clay. I would
>love to have 120 radials attached to my vertical, but the reality of living
>on a 60'x120' town lot preclude the luxury. I didn't let that stop me from
>working DX. I mounted my HF6V on a roof tripod with a counterpoise for two
>low band seasons, and it didn't work any better elevated than when it was
>ground mounted. Because ground mounting makes maintenance easier, I moved it
>back off the roof. Most of the time I operated running 100 watts, with up to
>500 watts for major pileups. Most antennas are compromised by tradeoffs,
>e.g. gain vs. front to back, etc. The same applies to verticals; efficiency
>is improved, and bandwidth is narrowed, using radials, but you can work a
>lot of DX with nothing but a ground rod. Let's not discourage new HF ops by
>telling them they need to start at the top, i.e fully optimized radial
>system, no surrounding metal objects or trees, etc. Could I have worked
>5BDXCC faster using radials on my vertical? Maybe. Could I have worked it
>faster with a yagi at 70 feet? You bet!. It's OK to use suboptimal antennas,
>the point is to get on the air.
>>Nelson, KU0A
>>-----Original Message-----
>From: [email protected]
>[mailto:[email protected]]On Behalf Of [email protected]
>Sent: Saturday, August 17, 2002 10:45 PM
>To: George, W5YR
>Cc: Jim Boyd; Antenna Net
>Subject: Re: [Antennas] Butternut Vertical
>>>All ground mounted verticals must have radials....BUT a vertical
>mounted at or >.07wl above ground will work 99% as well with only
>FOUR radials that are AT LEAST 1/4wl long at lowest freq...
>This was stated on a web site by W4RNL and I have confirmed it at home
>with a vertical mounted 20ft off the ground and it only has 4 60ft
>radials...works great on 80-10 and bandwidth/resonance is EXACTLY as it
>was on the ground with 32 radials...
>>Also BC stations with AM sticks on top of bldgs have reported the
>same thing...though the antenna has few radials there, being above
>earth ground allows it to work well with only a min compliment of
>radials...(one AM station here in Houston had that with its antenna
>atop the old Rice Hotel!)
>>Chris
>WB5ITT
>Houston
>>"George, W5YR" wrote:
> >
> > Jim, look elsewhere - the Butternut verticals MUST have radials. And think
> > about how you would adjust an antenna on a 30 ft pole . . .
> >
> > I am presently using a ground-mounted HF9-V with 60 radials. I ahve used
> > the HF06V in the past, all ground mounted with lots of radials. The
> > Butternut antennas require quite a bit of adjustment, especially the
>HF-9V,
> > so they need to be mounted where you can easily get to them: on the ground
> > or a roof that is accessible, etc.
> >
> > I think that you may have to be looking at some of the Cushcraft, GAP,
> > Hy-Gain or other so-called half-wave verticals that are claimed not to
> > require radials.
> >
> > 73/72/oo, George W5YR - the Yellow Rose of Texas
> > Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
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Dave
NR1DX
[email protected]
"A man who picks a cat up by the tail learns a lesson he can learn no other 
way" .... Mark Twain