I have a tube rig, a nice little yaesu ft201. I'm going to get vision
australia to convert the manual to audio for me so I can learn all about
the thing. I even got a spare set of 6js6cs and the 12by7 driver.
Shaun
web sites:
http://www.myspace.com/blindmanshaunoliver
http://blindman.homelinux.org/~blindman/
skype: brailledude
On 30/03/2008 3:01 PM, the old scribe known as Louis Kim Kline was able
to impart this pearl of wisdom:
> Hi Shaun.
>
> It will work better on its harmonics if you shoot for 7100 KHz. It won't
> increase the SWR that much at the top of the band. If you have a tube rig
> it won't care, and if you are using an auto-tuner on a solid state rig, it
> will be well within the range of the tuner--even on a TS2000S!
>
> 73, de Lou K2LKK
>
>
>
> At 01:26 PM 3/30/2008 +1000, you wrote:
>> I was thinking of cutting the 40 meter dipole for about 7150 khz roughly
>> the middle of the band.
>>
>> Shaun
>> web sites:
>> http://www.myspace.com/blindmanshaunoliver
>> http://blindman.homelinux.org/~blindman/
>> skype: brailledude
>>
>>
>> On 30/03/2008 1:14 PM, the old scribe known as Louis Kim Kline was able
>> to impart this pearl of wisdom:
>>> Hi Shaun
>>>
>>> There is a little variation on the antenna that you are proposing that
>> I've
>>> found to be extremely effective over the years. It involves cutting one
>>> antenna for the low end of 75 meters, say around 3800 KHz, and the other
>>> one for about 7100 KHz. You then string them in an inverted vee
>>> configuration off a center mast at right angles to each other. You tie
>> one
>>> leg of the 75 meter antenna and one leg of the 40 meter antenna to the
>>> center conductor of your coax, and you tie the other leg of the 75 meter
>>> antenna and the other leg of the 40 meter antenna to the braid of the coax.
>>>
>>> I had this antenna up at my previous QTH in Bergen, NY where I had a large
>>> enough yard to string the antenna, and it loaded everywhere easily with an
>>> auto tuner on 80 through 6 meters, and performed like a champ. There
>> was a
>>> couple of things about this antenna that was particularly nice. One thing
>>> was that the SWR was fairly low on 75, 40, 15, 10, and 6 meters even
>>> without an antenna tuner. It also seemed to play particularly nicely
>> on 17
>>> meters when run through the auto tuner.
>>>
>>> The only band that I found a few tuners that didn't like to load the
>> system
>>> was 20 meters, although the internal tuner in my Kenwood TS690S had no
>>> problem with it, and the Icom AT180 tuner and the LDG AT11 loaded it right
>>> up with no problem. The Dentron Super Tuner didn't like it, though.
>>>
>>> The other beautiful thing about this antenna is that it has a lot of
>>> mechanical stability in high winds. The four perpendicular wires coming
>>> off the center insulator also tend to act as guy wires for the center
>> mast,
>>> and I have watched that mast barely wiggle in 70 mile per hour winds.
>>>
>>> And, not only does the antenna load on all of those bands, but it will
>>> stomp a G5RV into the ground when it comes to making contacts. If you
>> have
>>> the space, and can get it past the XYL, give it a try. I think you'll
>> like
>>> the results.
>>>
>>> 73, de Lou K2LKK
>>>
>>>
>>>
>>> At 12:55 PM 3/28/2008 +1100, you wrote:
>>>> the problem with running a long wire is that my back fence is colorbond
>>>> or however you spell it. it's that metal stuff anyways, and that eoulc
>>>> either be a hinderence or a help depending on how I work things.
>>>> I want to put up a dipole but I'm thinking of making two feed off the
>>>> same coax although I'm not quite sure how to do it. I'm going to make
>>>> one for 40 and 80 meters and one that will serve on 15 and 10 meters.
>>>> I shall probably use galvinised pipe to hold the whole thing up. whether
>>>> I want an inverted v configuration or not is the next question I need to
>>>> ask myself.
>>>>
>>>> Shaun
>>>> web sites:
>>>> http://www.myspace.com/blindmanshaunoliver
>>>> http://blindman.homelinux.org/~blindman/
>>>> skype: brailledude
>>>>
>>>>
>>>> On 28/03/2008 12:50 PM, the old scribe known as Colin McDonald was able
>>>> to impart this pearl of wisdom:
>>>>> are you going to run a random wire/long wire, or dipole configuration?
>>>>> You'll need a tuner, or at least, something to test SWR if you run a
>> random
>>>>> wire. If you use the dipole configuration, you can get close enough to
>>>>> resonance by careful measurement of the wire halves.
>>>>> I'm sure you've probably gone over all this since I didn't closely follow
>>>>> all the threads of late.
>>>>> On the top of your house, do you have a chimney, or furnace exhaust
>> outlet,
>>>>> or even a fan vent? If so, you can use rope as an insulator and run the
>>>>> wire from the top of the house down to the furthest point on the fence.
>>>>> Use some 2 inch PVC if you want to get the fence end of the wire up a
>>>> little
>>>>> higher off the ground.
>>>>> You can use rope, or heavy duty zip ties to secure the PVC to the fence
>>>>> line.
>>>>> If you use a random wire, or long wire, make sure you have some sort of
>>>>> counter poise.....as much wire thrown down on the roof of the house, if
>>>> that
>>>>> is where you end up running the wire from, as possible.
>>>>> I'm not sure if you have a fully fenced front and back yard or not, but
>>>>> putting a 25 foot chunk of galvanized pipe up at the front corner, and
>>>>> another pipe of similar length up in the back opposite corner would
>>>> give you
>>>>> a nice run and make it easier to run a dipole instead of an end fend long
>>>>> wire.
>>>>> And, if you have a long enough fence line, a long wire around the entire
>>>>> fence line would probably work not to badly on 75/80 either.
>>>>>
>>>>> 73
>>>>> Colin, V A6BKX
>>>>>
>>>>>
>>>>> __________ NOD32 2979 (20080327) Information __________
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>>>>>
>>>>
>>>>
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>>>> 5:02 PM
>>> Louis Kim Kline
>>> A.R.S. K2LKK
>>> Home e-mail: [log in to unmask]
>>> Work e-mail: [log in to unmask]
>>> Work Telephone: (585) 697-5740
>>>
>>>
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>>>
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>>> http://www.eset.com
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>>>
>>>
>>
>>
>>
>> --
>> No virus found in this incoming message.
>> Checked by AVG.
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>> 5:02 PM
>
> Louis Kim Kline
> A.R.S. K2LKK
> Home e-mail: [log in to unmask]
> Work e-mail: [log in to unmask]
> Work Telephone: (585) 697-5740
>
>
> __________ NOD32 2984 (20080329) Information __________
>
> This message was checked by NOD32 antivirus system.
> http://www.eset.com
>
>
>
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