steve, as in what you would do while fishing? or more in reference to
something living under a bridge and a tolkian tale?
73
Colin, V A6BKX
--------------------------------------------------
From: "Steve Forst" <[log in to unmask]>
Sent: Friday, October 10, 2014 2:08 PM
To: <[log in to unmask]>
Subject: Re: HF antenna fun
> I don't keep up with all the changes in technological lingo, but is the
> word "troll" still in use?
>
> Just curious and willing to be proven wrong.
>
> Steve KW3A
>
>
>
> On 10/10/2014 4:02 PM, Joe Quinn wrote:
>> How do you make them? What's the difference between a jPole and a diPole?
>>
>> Sent from my iPhone
>>
>>> On Oct 10, 2014, at 1:48 PM, Colin McDonald <[log in to unmask]>
>>> wrote=
>> :
>>> =20
>>> You may get slightly better performance by putting it out the window.
>>> That said, if you have aluminum window frames this could cause problems
>>> wi=
>> th=20
>>> SWR if the metal part of the antenna touches it or is in close
>>> proximity.
>>> There are many antennas that work on most HF bands, however they are
>>> very=20=
>>
>>> large verticals, or very long dipoles.
>>> For instance, I have a carolina windom wire antenna that is 132 feet
>>> long,=
>> =20
>>> with a 26 foot vertical radiator that hangs down from it.
>>> I also have a 6 band vertical that covers 80M through 6M that is 12
>>> feet=20=
>>
>>> long with 6 4 to 5 foot horizontal elements.
>>> This vertical is more or less useless on 80M and 40, but works OK on
>>> 20M,=20=
>>
>>> 15M and 10M given good band conditions.
>>> A vertical that performs OK on the lower frequencies would be at least
>>> 31=20=
>>
>>> feet, and usually 43 feet or more if you want to be able to use it=20
>>> consistently
>>> The smallest antenna that would cover most HF bands that I've seen is
>>> a=20=
>>
>>> mobile screw driver type antenna which is about 6FT long...but again,
>>> the=20=
>>
>>> lower frequencies are not usable on it.
>>> =20
>>> Antennas are not expensive if you make them, but can get pricy if you
>>> buy=20=
>>
>>> them.
>>> =20
>>> 73
>>> Colin, V A6BKX
>>> --------------------------------------------------
>>> From: "Joe Quinn" <[log in to unmask]>
>>> Sent: Friday, October 10, 2014 11:49 AM
>>> To: <[log in to unmask]>
>>> Subject: Re: HF antenna fun
>>> =20
>>>> What if you put it out of the window, would it work any better? Also,
>>>> are=
>> =20
>>>> th=3D
>>>> ere any antennas that work on all hf bands?
>>>> Also are antennas expensive?
>>>> =20
>>>> Sent from my iPhone
>>>> =20
>>>>> On Oct 10, 2014, at 12:11 PM, Colin McDonald
>>>>> <[log in to unmask]>=20=
>>
>>>>> wrot=3D
>>>> e:
>>>>> =3D20
>>>>> you will get just limited performance on 20M and up in frequency.
>>>>> You will get basically no performance on bands down in frequency from
>>>>> 20=
>> M=20
>>>>> o=3D
>>>> r=3D20
>>>>> 14MHZ
>>>>> If you have stations very close by on 40 or 80/75M you may be able
>>>>> to=3D=
>> 20
>>>>> participate in round tables...again, if they are very close
>>>>> indeed...as=20=
>>
>>>>> in=3D
>>>> ,=3D20
>>>>> within 2 or 3 miles
>>>>> If band conditions are extremely good, you may make an occasional
>>>>> contac=
>> t=20
>>>>> o=3D
>>>> n=3D20
>>>>> 20M, 15M or 10M bands.
>>>>> You will have RFi issues, and you will have noise problems making=20
>>>>> receivin=3D
>>>> g=3D20
>>>>> difficult at best.
>>>>> Not trying to discourage you at all, but you need to be aware of
>>>>> the=20
>>>>> sever=3D
>>>> e=3D20
>>>>> limitations of an indoor apartment style HF antenna.
>>>>> They very seldom work for anything other than limited receiving on
>>>>> HF.=20=
>>
>>>>> Mo=3D
>>>> st=3D20
>>>>> guys who use HF in an apartment can get the antenna outside on the=20
>>>>> balcony=3D
>>>> =3D20
>>>>> or something...this at least gets the radiator outside the
>>>>> building.=20
>>>>> The=3D20=3D
>>>> =20
>>>>> building is full of metal and all sorts of stuff that blocks RF
>>>>> from=20
>>>>> getti=3D
>>>> ng=3D20
>>>>> in or out, along with electronics that create high noise level on=20
>>>>> receive=3D20=3D
>>>> =20
>>>>> making it difficult to copy stations.
>>>>> I had limited success using a hamstick style mono-band mobile
>>>>> antenna=3D=
>> 20
>>>>> clamped to the balcony railing on the fourth floor for a couple years.
>>>>> It got me on 20M and 40M, but barely... I didn't make any contacts
>>>>> at=20=
>>
>>>>> all=3D20=3D
>>>> =20
>>>>> unless the band conditions were very very good.
>>>>> Unfortunately, this is one of those things where there is no way=20
>>>>> around=3D20=3D
>>>> =20
>>>>> it...the wheel has been invented, and reinvented on indoor HF
>>>>> antennas=20=
>>
>>>>> and=3D
>>>> =3D20
>>>>> while manufacturers still make them and claim all sorts of
>>>>> fantastic=3D2=
>> 0
>>>>> results, at the end of the day, they just don't work well.
>>>>> That said, if you are located on the beech in florida or some other=20
>>>>> south=3D20=3D
>>>> =20
>>>>> eastern State, you may find you have reasonable performance even
>>>>> with=20=
>>
>>>>> an=3D20=3D
>>>> =20
>>>>> indoor antenna. Angle of radiation, propagation and other factors
>>>>> come=20=
>>
>>>>> in=3D
>>>> to=3D20
>>>>> play making the circumstances more conducive to success.
>>>>> That said, the best part about ham radio is that if you try
>>>>> something,=20=
>>
>>>>> you=3D
>>>> =3D20
>>>>> may find you have results that don't match up to the accepted
>>>>> theory=20
>>>>> or=3D20=3D
>>>> =20
>>>>> experience of others.
>>>>> So, try it and see what happens.
>>>>> Another antenna to check out might be the MFJ loop antenna...a bit=20
>>>>> more=3D20=3D
>>>> =20
>>>>> money, but they work well even inside buildings, at least better
>>>>> than=20=
>>
>>>>> your=3D
>>>> =3D20
>>>>> typical vertical.
>>>>> =3D20
>>>>> 73
>>>>> Colin, V A6BKX
>>>>> --------------------------------------------------
>>>>> From: "Joe Quinn" <[log in to unmask]>
>>>>> Sent: Friday, October 10, 2014 10:17 AM
>>>>> To: <[log in to unmask]>
>>>>> Subject: Re: HF antenna fun
>>>>> =3D20
>>>>>> Mfj1622 apartment antenna, lest you see something better
>>>>>> =3D20
>>>>>> Sent from my iPhone
>>>>>> =3D20
>>>>>>> On Oct 10, 2014, at 10:20 AM, Jim Shaffer <[log in to unmask]> wrote:
>>>>>>> =3D20
>>>>>>> I see a bunch of antennas here. Specifically, what antenna is it?
>>>>>>> =3D20
>>>>>>> -----Original Message-----=3D20
>>>>>>> From: Joe Quinn
>>>>>>> Sent: Friday, October 10, 2014 10:00 AM
>>>>>>> To: [log in to unmask]
>>>>>>> Subject: Re: HF antenna fun
>>>>>>> =3D20
>>>>>>> Here's the link, tell me what you think=3D3D20
>>>>>>> http://www.mfjenterprises.com/Product.php?productid=3D3D3DMFJ-1622
>>>>>>> =3D20
>>>>>>> Sent from my iPhone
>>>>>>> =3D20
>>>>>>>> On Oct 10, 2014, at 9:24 AM, Butch Bussen
>>>>>>>> <[log in to unmask]>=20
>>>>>>>> wrote=3D
>>>> :
>>>>>>>> =3D3D20
>>>>>>>> I didn't see a link to your antenna. Keep in mind, anything
>>>>>>>> smaller
>>>>>>>> is=3D3D20=3D3D
>>>>>>> =3D20
>>>>>>>> a compromise antenna. Not to say it is bad, just be ware. A dummy
>>>>>>>> load=3D3D20=3D3D
>>>>>>> =3D20
>>>>>>>> will load up on all bands, but doesn't radiate worth a damn. I had
>>>>>>>> one=3D3D20=3D3D
>>>>>>> =3D20
>>>>>>>> of those b and w 160 through ten antennas, looked goot on swr
>>>>>>>> meter,
>>>>>>>> but=3D3D20=3D3D
>>>>>>> =3D20
>>>>>>>> was a very poor performer. It is basicly a folded dipole, 50 foot
>>>>>>>> or=
>>
>>>>>>>> so=3D3D20=3D3D
>>>>>>> =3D20
>>>>>>>> each side of center, right above the center insolator or balon
>>>>>>>> is=3D3=
>> D20
>>>>>>>> another box which is actually a resister which is why it matched=20
>>>>>>>> so=3D3D2=3D
>>>> 0
>>>>>>>> well. I called it my dummy load with wires. I'd ask about=20
>>>>>>>> putting=3D3D2=3D
>>>> 0
>>>>>>>> something up out side and go from there. Can you get any local
>>>>>>>> hams
>>>>>>>> or=3D3D20=3D3D
>>>>>>> =3D20
>>>>>>>> club involved to lend you a hand to see what might be done?
>>>>>>>> 73
>>>>>>>> Butch
>>>>>>>> WA0VJR
>>>>>>>> Node 3148
>>>>>>>> Wallace, ks.
>>>>>>>> =3D3D20
>>>>>>>> =3D3D20
>>>>>>>> On Thu, 9 Oct=3D3D20
>>>>>>>> 2014, Alan R. Downing wrote:
>>>>>>>> =3D3D20
>>>>>>>>> Hello Joe, Don't get your hopes up too high for this indoor HF=20
>>>>>>>>> antenna=3D
>>>> .
>>>>>>>>> I=3D3D
>>>>>>> =3D20
>>>>>>>>> think that it is highly doubtful that an antenna that small can
>>>>>>>>> work=
>>
>>>>>>>>> very=3D3D
>>>>>>> =3D20
>>>>>>>>> efficiently. In addition to poor performance, keep your eye open
>>>>>>>>> fo=
>> r
>>>>>>>>> interference. When you transmit on this small antenna, you run=20
>>>>>>>>> the=3D20=3D
>>>> =20
>>>>>>>>> risk
>>>>>>>>> o=3D3D
>>>>>>> f
>>>>>>>>> getting into all many of electronics, not only in your
>>>>>>>>> apartment,=20=
>>
>>>>>>>>> but=3D20=3D
>>>> =20
>>>>>>>>> in
>>>>>>>>> neighboring units. Keep us posted on how you do.
>>>>>>>>> =3D3D20
>>>>>>>>> =3D3D20
>>>>>>>>> Alan/KD7GC
>>>>>>>>> =3D3D20
>>>>>>>>> =3D3D20
>>>>>>>>> =3D3D20
>>>>>>>>> Alan R. Downing
>>>>>>>>> Phoenix, AZ
>>>>>>>>> =3D3D20
>>>>>>>>> -----Original Message-----
>>>>>>>>> From: For blind ham radio operators
>>>>>>>>> [mailto:[log in to unmask]
>>>>>>> ]
>>>>>>>>> On Behalf Of Joe Quinn
>>>>>>>>> Sent: Thursday, October 09, 2014 9:49 PM
>>>>>>>>> To: [log in to unmask]
>>>>>>>>> Subject: HF antenna fun
>>>>>>>>> =3D3D20
>>>>>>>>> I found an antenna that will work inside my apartment. It
>>>>>>>>> says=20
>>>>>>>>> it'll=3D
>>>> =20
>>>>>>>>> wo=3D3D
>>>>>>> rk
>>>>>>>>> f=3D3D3D
>>>>>>>>> rom 40-10 meters on hf and six and 2 meters on vhf. It's not huge,
>>>>>>>>> s=
>> o=20
>>>>>>>>> I=3D
>>>> =20
>>>>>>>>> c=3D3D
>>>>>>> an
>>>>>>>>> p=3D3D3D
>>>>>>>>> ut it outside my window or even indoors clamping it to the desk.
>>>>>>>>> Wha=
>> t=20
>>>>>>>>> I=3D
>>>> =20
>>>>>>>>> woul=3D3D3D
>>>>>>>>> d like to know, is if there is another antenna that would work=20
>>>>>>>>> below,=3D20=3D
>>>> =20
>>>>>>>>> or
>>>>>>>>> i=3D3D
>>>>>>> s
>>>>>>>>> i=3D3D3D
>>>>>>>>> t above, 40 meters but that wouldn't be huge, so it would work
>>>>>>>>> from
>>>>>>>>> insid=3D3D
>>>>>>> e
>>>>>>>>> m=3D3D3D
>>>>>>>>> y apartment. I don't know that I would be able to get permission
>>>>>>>>> fro=
>> m
>>>>>>>>> the=3D3D
>>>>>>> =3D20
>>>>>>>>> ma=3D3D3D
>>>>>>>>> nager to be able to hang out a 60 foot or whatever antenna
>>>>>>>>> outside=20=
>>
>>>>>>>>> of=3D20=3D
>>>> =20
>>>>>>>>> my
>>>>>>>>> apa=3D3D3D
>>>>>>>>> rtment window. :-) but I want to be able to work as many HF bands
>>>>>>>>> as=
>> =20
>>>>>>>>> I=3D
>>>> =20
>>>>>>>>> ca=3D3D
>>>>>>> n.
>>>>>>>>> A=3D3D3D
>>>>>>>>> nybody have any ideas?=3D3D3D
>>>>>>>>> =3D3D20
>>>>>>>>> =3D3D20=3D20=20
>>
>>
>>
|
