Hi Shaun.
You need about 270 feet total. Depending upon whether you want a 3 sided
loop (like a Delta Loop) or a four sided loop, you can divide 270 by either
3 or 4 and that will tell you how long each side needs to be. Also, We
tilted the loop and strung it off a fairly tall mast, which of course
reduced the horizontal space required.
The nice thing about loops is that they are nearly always quieter antennas
than dipoles, verticals, or random wires. The only downside is that they
are big.
73, de Lou K2LKK
At 01:23 PM 3/30/2008 +1000, you wrote:
>how much space are we talking for a loop antenna?
>
>Shaun
>web sites:
>http://www.myspace.com/blindmanshaunoliver
>http://blindman.homelinux.org/~blindman/
>skype: brailledude
>
>
>On 30/03/2008 12:56 PM, the old scribe known as Louis Kim Kline was able
>to impart this pearl of wisdom:
> > Hi.
> >
> > If you have the space for it, a loop antenna will tend to pick up much
> less
> > noise than a random wire or dipole. I also found during a Field Day
> > eexercise where we had an 80 meter Delta Loop and 80/40 meter dipoles that
> > the 80 meter Delta loop was considerably less prone to hear lightning
> > crashes, which proved to be a big advantage with typical June
> conditions in
> > New York State.
> >
> > 73, de Lou K2LKK
> >
> >
> >
> > At 07:31 PM 3/27/2008 -0600, you wrote:
> >> those noisy powerlines on low frequencies are always going to be the
> bain of
> >> ham operators.
> >> Unless they're barried, or a few hundred feet away, your going to get some
> >> amount of noise off them.
> >> One way to try and counter act the noise is to run your antenna wire
> >> perpindicular to the power line. That is, if the power line runs say east
> >> to west across your yard, then try to run the antenna north to
> south...this
> >> will help a bit I'm told.
> >> I have never been in an area with above ground power lines since I
> have been
> >> a ham using 80M. I guess I'm lucky that way.
> >> Don't have to worry about snagging lines when I'm putting up antenna
> support
> >> structures either which is nice.
> >> 73
> >> Colin, V A6BKX
> >> ----- Original Message -----
> >> From: "Shaun Oliver" <[log in to unmask]>
> >> To: <[log in to unmask]>
> >> Sent: Thursday, March 27, 2008 7:25 PM
> >> Subject: Re: antenna hight
> >>
> >>
> >>> ahahahahahaha. true.
> >>> noe other thing, if I get my antenna up to say 20-25 feet off the
> >>> ground, given that it would then be above the power lines, would that
> >>> cut out the qrm generated by them lines then or is that going to be my
> >>> constant companion.
> >>>
> >>> Shaun
> >>> web sites:
> >>> http://www.myspace.com/blindmanshaunoliver
> >>> http://blindman.homelinux.org/~blindman/
> >>> skype: brailledude
> >>>
> >>>
> >>> On 28/03/2008 12:13 PM, the old scribe known as Louis Kim Kline was able
> >>> to impart this pearl of wisdom:
> >>>> That's ok, you'll be able to get a spot in front of the radio that way!
> >>>>
> >>>> 73, de Lou K2LKK
> >>>>
> >>>>
> >>>>
> >>>> At 05:49 PM 3/26/2008 +1100, you wrote:
> >>>>> she wants nothing to do with it and I respect that. she may get bitten
> >>>>> by the bug eventually but for now I respect she wants jack to do with
> >>>>> the hobby.
> >>>>>
> >>>>> Shaun
> >>>>> web sites:
> >>>>> http://www.myspace.com/blindmanshaunoliver
> >>>>> http://blindman.homelinux.org/~blindman/
> >>>>> skype: brailledude
> >>>>>
> >>>>>
> >>>>> On 26/03/2008 1:29 AM, the old scribe known as Brett Winches was able
> >> to
> >>>>> impart this pearl of wisdom:
> >>>>>> Get your wife into the hobby and she will not have an excuse. I did
> >> and
> >>>>>> do not regret it for a minute and cheaper cell bills to boot. =20
> >>>>>>
> >>>>>> -----Original Message-----
> >>>>>> From: For blind ham radio operators
> >>>>>> [mailto:[log in to unmask]] On Behalf Of Shaun Oliver
> >>>>>> Sent: Tuesday, March 25, 2008 4:39 AM
> >>>>>> To: [log in to unmask]
> >>>>>> Subject: Re: antenna hight
> >>>>>>
> >>>>>> hmmm. that would upset the zyl and I refuse to do that. not only that,
> >> I
> >>>>>> don't have the means to get any higher than 20 feet.
> >>>>>> I might consider using thinner wire so long as I can push up to 100
> >>>>>> watts through it, even though I shan't be outputting more than 10.
> >>>>>>
> >>>>>>
> >>>>>> Shaun
> >>>>>> web sites:
> >>>>>> http://www.myspace.com/blindmanshaunoliver
> >>>>>> http://blindman.homelinux.org/~blindman/
> >>>>>> skype: brailledude
> >>>>>>
> >>>>>>
> >>>>>> On 25/03/2008 8:17 PM, the old scribe known as Howard Kaufman was able
> >>>>>> to impart this pearl of wisdom:
> >>>>>>> I don't know, the higher the wire, the harder it is to see from the
> >>>>>> ground.
> >>>>>>> =20
> >>>>>>> =20
> >>>>>>> __________ NOD32 2969 (20080324) Information __________
> >>>>>>> =20
> >>>>>>> This message was checked by NOD32 antivirus system.
> >>>>>>> http://www.eset.com
> >>>>>>> =20
> >>>>>>> =20
> >>>>>>> =20
> >>>>>> __________ NOD32 2970 (20080325) Information __________
> >>>>>>
> >>>>>> This message was checked by NOD32 antivirus system.
> >>>>>> http://www.eset.com
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>
> >>>>>
> >>>>> --
> >>>>> No virus found in this incoming message.
> >>>>> Checked by AVG.
> >>>>> Version: 7.5.519 / Virus Database: 269.22.1/1347 - Release Date:
> >> 3/27/2008
> >>>>> 7:15 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 2979 (20080327) Information __________
> >>>>
> >>>> This message was checked by NOD32 antivirus system.
> >>>> http://www.eset.com
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >>> --
> >>> No virus found in this incoming message.
> >>> Checked by AVG.
> >>> Version: 7.5.519 / Virus Database: 269.22.1/1346 - Release Date:
> 3/27/2008
> >> 10:03 AM
> >>>
> >>
> >>
> >>
> >> --
> >> No virus found in this incoming message.
> >> Checked by AVG.
> >> Version: 7.5.519 / Virus Database: 269.22.1/1349 - Release Date:
> 3/29/2008
> >> 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
> >
> >
> >
>
>
>
>
>--
>No virus found in this incoming message.
>Checked by AVG.
>Version: 7.5.519 / Virus Database: 269.22.1/1349 - Release Date: 3/29/2008
>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
|
