Yesterday I spent the afternoon adding 4 - 12 foot top hat wires to my
HF2V.
You can see the pics on my flickr feed at http://flic.kr/s/aHsjMzxCt2
Bandwidth on 80 improved from about 25kc's to about 90 (2:1).
One thing I noticed was that I had to open the coil at the base of the
antenna up more than I ever have to get the SWR down. (See pics).
I was able to work a number of stations in Eastern Europe last night in the
LZ contest on 40 and 80. Pleased with the results so far.
Mike - KI8R
On Wed, Nov 13, 2013 at 11:59 PM, GARY HUBER <glhuber@msn.com> wrote:
> Mike, I forgot to say the top loading can give your HF-2V a low VSWR
> across the entire 40 M band or across the entire phone or CW portion....
> great for contests!
>
> 73 ES DX,
> Gary -- AB9M
>
> -----Original Message----- From: Michael Murphy
> Sent: Wednesday, November 13, 2013 9:25 PM
> To: Mike & Coreen Smith VE9AA
> Cc: towertalk@contesting.com
> Subject: Re: [TowerTalk] HF2V Elevated or On Ground
>
> I have an HF-2V ground mounted with 32 - 40 foot radials under it. When I
> went from 16 to 32 radials, 80 became significantly more touchy to tune.
> That said, it works very well on 40 and 80 into EU.
>
> This weekend I plan to add 4 -12 foot wires for a top hat for 80.
> According to Bencher, it will improve performance on 80 as well as a
> little more bandwidth. Anyone tried this?
>
> Thanks
>
> Mike - KI8R
>
>
> On Wed, Nov 13, 2013 at 6:51 PM, Mike & Coreen Smith VE9AA <
> ve9aa@nbnet.nb.ca> wrote:
>
>
>>
>> James,
>>
>>
>>
>> I recently installed an HF9V at around 8' AGL. I use 2 elevated
>> "ground"(counterpoise) radials per band, sloping from 8' down to about 5'
>> AGL.
>>
>> I find it works VERY well on 40m and up and adequate on 80m.
>>
>> Over the past month, I've compared it to a host of other wire antennas at
>> similar heights and always found the Butternut to be as good or better
>>
>> than anything else in the yard here. I believe the raised radials have
>> less
>> loss, but it was twitchy to tune. An HF2V ought to be a cake-walk to
>> tune.
>>
>>
>>
>> It's just my opinion that using only a few ground radials is lossy and
>> that's why everyone preaches ground mounting it. (a lot easier to tune w/
>> better/wide 2:1 SWR curves) (I use the term "better", but I don't really
>> mean better, but it is better for the match, but I think it's like dumping
>> power into the ground to heat worms.)
>>
>>
>>
>> So far I have around 2500 Q's with it, contesting every weekend and I am
>> sure it works well , raised up like it is.
>>
>>
>>
>> p.s.- subscribe to the Yahoo group for Butternut antennas and then check
>> the
>> files section for "VE9AA" or "AD5X".a couple good ideas
>>
>> how to get the whole 80m band out of the antenna.
>>
>>
>>
>> YMMV,
>>
>>
>>
>> 73 Mike VE9AA, NB
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
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>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>
>
>
> --
> -----------------------------------------------
> Michael Murphy - KI8R
>
> mike@ki8r.com
>
> twitter.com/ki8r
>
> www.ki8r.com
>
> 614-371-8265 (cell)
>
> 4SQRP #388
> QRPARCI #14941
> NAQCC #6432
> FLYING PIGS #3100
> KX3 #3254
> -----------------------------------------------
> _______________________________________________
>
>
>
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>
--
-----------------------------------------------
Michael Murphy - KI8R
mike@ki8r.com
twitter.com/ki8r
www.ki8r.com
614-371-8265 (cell)
4SQRP #388
QRPARCI #14941
NAQCC #6432
FLYING PIGS #3100
KX3 #3254
-----------------------------------------------
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