[TowerTalk] AV-640 (was Gap Challenger ComparisonTesting Studies)

Sun Apr 25 16:08:09 PDT 2010

I didn't get it to work on 160. !!!
But, if you notice, the frequency on the 17 meter band is 10 times the 
frequency on 160 meters. A tuner can load it. but it is not wise to do so.
Once I realized that I had the antenna switch in the wrong place, it was too 
late.
Likewise, a 17 meter vertical too close to a 160 meter vertical causes SWR 
fluctuations when the wind blows the antennas around.

Dan Schaaf
K3ZXL
"In the Beginning there was Spark Gap"
www.k3zxl.com
----- Original Message ----- 
From: "RICHARD SOLOMON" <w1ksz at q.com>
To: "TowerTalk" <towertalk at contesting.com>
Sent: Sunday, April 25, 2010 6:44 PM
Subject: Re: [TowerTalk] AV-640 (was Gap Challenger ComparisonTesting 
Studies)

>
> How did you get the AV-640 to work on 160 ??
>
> 73, Dick, W1KSZ
>
>> From: n7xy at clearwire.net
>> Date: Sun, 25 Apr 2010 15:40:58 -0700
>> To: towertalk at contesting.com
>> Subject: Re: [TowerTalk] AV-640 (was Gap Challenger Comparison Testing 
>> Studies)
>>
>> I haven't had any insulator issues, but one of the 40 meter capacity
>> hat wires has a noticeable bend from putting it up single-handed.
>>
>> I have had better-than-expected results on 160 at 100 watts (> 150
>> QSOs at distances up to ~1500 miles).  I wouldn't try running higher
>> power than that.
>>
>> Bob N7XY
>>
>> On Apr 25, 2010, at 3:13 PM, Roger (K8RI) wrote:
>>
>> >
>> >
>> > 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 at clearwire.net>
>> >> To: "Tower and HF antenna construction topics."
>> >> <towertalk at 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 at aol.com>
>> >>>> To: <towertalk at contesting.com>; <ka2qwc at 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 at 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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>> >>>>> TowerTalk at contesting.com
>> >>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>> >>>>>
>> >>>> _______________________________________________
>> >>>>
>> >>>>
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