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
>>>
>>>
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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]
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> 
> 
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