Dan Schaaf wrote:
> Right, My AV-640 has worked the world, literally. I could spend a lot of
> time telling stories .
> On 12 meters, ragchewed with N2WB op at VP6DX on 12 meters between band
> opening. I was running 100 watts SSB
> Likewise on 30 and 40 I have 266 and 269 countries logged .
> You just have to keep an eye on the 17 meter stub insulator at the top of
> the stub. The insulator can burn and short the stub to the main radiator. I
> think it happened here once due to accidentally loading the antenna on 160
> meters. That point on the stub became a high voltage point and the insulator
> was wet from morning dew.
> Replaced the insulator and all was well again.
>
I've had a couple of the insulators break. (hit a tree on the way up and
down - Hired tree trimming crew, Strong wind blew small limb from
neighbor's lot and hit antenna) I made new ones from scrap 1/4" Lexan.
Just use one of the old ones for a template. I also found that if the
material from the broken one is sound, they can be "super glued" back
together and last quite well.
Compared to sloping half wave dipole it does quite surprisingly well on 40.
Not meant for heavy duty QRO.
73
Roger (K8RI)
> Dan Schaaf
> K3ZXL
> "In the Beginning there was Spark Gap"
> www.k3zxl.com
> ----- Original Message -----
> From: "Bob Nielsen" <n7xy@clearwire.net>
> To: "Tower and HF antenna construction topics." <towertalk@contesting.com>
> Sent: Sunday, April 25, 2010 4:40 PM
> Subject: Re: [TowerTalk] Gap Challenger Comparison Testing Studies
>
>
>
>> Try <http://www.championradio.com/HF-VERTICAL-PERFORMANCE-TEST-
>> METHODS-RESULTS.3>.
>>
>> The AV-640 was not included in the comparison, however it is quite
>> similar to the R8. Based on the R8 data I decided to purchase a
>> AV-640 and have not been disappointed.
>>
>> Bob, N7XY
>>
>> On Apr 25, 2010, at 12:19 PM, Dan Schaaf wrote:
>>
>>
>>> This link only takes me to the home page. (http://
>>> www.championradio.com) I
>>> want to know where is the related comparison?
>>> I want to see how my AV-640 stacks up against the others.
>>>
>>> Dan Schaaf
>>> K3ZXL
>>> "In the Beginning there was Spark Gap"
>>> www.k3zxl.com
>>> ----- Original Message -----
>>> From: <K7LXC@aol.com>
>>> To: <towertalk@contesting.com>; <ka2qwc@verizon.net>
>>> Sent: Sunday, April 25, 2010 2:16 PM
>>> Subject: Re: [TowerTalk] Gap Challenger Comparison Testing Studies
>>>
>>>
>>>
>>>> In a message dated 4/25/2010 8:38:22 A.M. Pacific Daylight Time,
>>>> towertalk-request@contesting.com writes:
>>>>
>>>>
>>>>> Has anyone done a study? evaluating? the GAP CHallenger DX,?
>>>>> against
>>>>>
>>>> other verticals?
>>>> Butternuts, Hygain, CrushCraft, Steppir rtc..
>>>>
>>>>
>>>>> If so I would like to see the results as the peratin to
>>>>> performance. I
>>>>>
>>>> am not intersted in anecdotal evidence just fact. If any one has
>>>> performed
>>>> testing I would like to hear from you. If there is enough?
>>>> response I
>>>> will
>>>> summarize and post the results.
>>>>
>>>> Yessireebob. To quote from _www.championradio.com_
>>>> (http://www.championradio.com) , "Now you can read an unbiased
>>>> report on
>>>> how they really
>>>> performed. Antennas tested include the Cushcraft R8, Butternut
>>>> HF6V, MFJ
>>>> 1798,
>>>> Force 12 ZR-3 and V-3, Diamond CP-6, Hustler 6BTV and Gap Titan.
>>>> It's 64
>>>> pages of protocol, data sets and summaries. Presented at the Dayton
>>>> Hamvention."
>>>>
>>>> Not exactly the Challenger but full of lots of actual data and
>>>> observations. It's the only on-the-air HF vertical comparison
>>>> report in
>>>> the world.
>>>>
>>>> Cheers,
>>>> Steve K7LXC
>>>> Champion Radio Products
>>>> Cell: 206-890-4188
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>>
>>>>
>>>>
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>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>>
>>> _______________________________________________
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