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Ken G. July 2nd 07 02:58 AM

Whats this antenna for
 
i guess UHF



Brenda Ann July 2nd 07 03:28 AM

Whats this antenna for
 

"Ken G." wrote in message
...
i guess UHF

That's an FM antenna from the look of it.




Uncle Peter July 2nd 07 04:45 AM

Whats this antenna for
 

I'm guessing UHF. The boom mounts parallel to the vertical
mast; and the "elements" appear to be reflectors. The driver
is some sort of dipole with with odd zig zag elements?

Pete



Uncle Peter July 2nd 07 04:46 AM

Whats this antenna for
 

"Ken G." wrote in message
...
i guess UHF

What is the end to end length of the aluminum tubes (reflectors) on the
boom?
That should give us idea of the minimum frequency.



William Sommerwerck[_2_] July 2nd 07 01:32 PM

Whats this antenna for
 
That's an FM antenna from the look of it.

Assuming I'm accurately judging its absolute size, it's not big enough to be
a multi-element antenna for 100MHz reception. And I've never seen an FM
antenna with ziggy-zaggys on it.

In case you're wondering... Many years ago I had a huge FM-only antenna
(from Channel Master, I think).



Brenda Ann July 2nd 07 02:09 PM

Whats this antenna for
 

"William Sommerwerck" wrote in message
. ..
That's an FM antenna from the look of it.


Assuming I'm accurately judging its absolute size, it's not big enough to
be
a multi-element antenna for 100MHz reception. And I've never seen an FM
antenna with ziggy-zaggys on it.

In case you're wondering... Many years ago I had a huge FM-only antenna
(from Channel Master, I think).



I can't judge the size from the pic, either. I have owned that style of FM
antenna before, hence my observation. You may be right about it being for
UHF, as well.




Ken G. July 2nd 07 03:13 PM

Whats this antenna for
 
The square pole part is 30 inches long .
The longest `wings` are 30 inches .

I assume the hookups are the wing nuts in the middle of the zig zags .
There is no complete circuit between anything . The 4 sets of wings are
not connected to anything . I thought UHF or FM was basically a loop .
The way the mounts are it looks like this was supposed to be mounted
standing up but i dont know .

I hooked it to a tv set and it did about as much as rabbit ears . Maybe
something is missing off it .


John Byrns[_2_] July 2nd 07 04:12 PM

Whats this antenna for
 
In article ,
(Ken G.) wrote:

The square pole part is 30 inches long .
The longest `wings` are 30 inches .

I assume the hookups are the wing nuts in the middle of the zig zags .


I wonder about a couple of the details of this antenna, first why are
the reflector elements insulated from the boom? Second and more
interestingly, the placement of the zig-zag elements in front of the
reflector is not symmetrical top to bottom, side to side in the photo, I
wonder what the purpose of this is, if it is to shape the vertical
pattern to somehow maximize the gain when ground reflections are taken
into account?


Regards,

John Byrns

--
Surf my web pages at,
http://fmamradios.com/

jakdedert July 2nd 07 06:12 PM

Whats this antenna for
 
William Sommerwerck wrote:
That's an FM antenna from the look of it.


Assuming I'm accurately judging its absolute size, it's not big enough to be
a multi-element antenna for 100MHz reception. And I've never seen an FM
antenna with ziggy-zaggys on it.

In case you're wondering... Many years ago I had a huge FM-only antenna
(from Channel Master, I think).



Mine was a Wineguard...20 elements, IIRC, doubled, with stacking harness
and a rotor on a 30' mast.

jak


Brenda Ann July 2nd 07 10:33 PM

Whats this antenna for
 

"Ken G." wrote in message
...
The square pole part is 30 inches long .
The longest `wings` are 30 inches .

I assume the hookups are the wing nuts in the middle of the zig zags .
There is no complete circuit between anything . The 4 sets of wings are
not connected to anything . I thought UHF or FM was basically a loop .
The way the mounts are it looks like this was supposed to be mounted
standing up but i dont know .


An antenna for any frequency CAN take pretty much any form. Some are not so
viable.

When you talk about the "wings" do you mean the elements at the back? Are
these 30" total or on one side?




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