Fwd: Re: [TowerTalk] Cage Antenna Construction Hints?

[Jonathan Kaplan]

>Date: Thu, 27 Aug 1998 00:06:46 -0700
>To: "DavidC" <davidc@bit-net.com>, <k4oj@ij.net>,
<towertalk@contesting.com>, "Dave_K9NX" <n7ex@athenet.net>
>From: Jonathan Kaplan <jonk@jskent.com>
>Subject: Re: [TowerTalk] Cage Antenna Construction Hints?
>
>I'm having trouble visualizing the cage antenna from all the descriptions.
Can anyone point me to a picture, either on the web or in a book?
>
>Thanks & 73
>Jonathan
>
>At 11:46 PM 8/26/98 -0400, DavidC wrote:
>>
>>a coupla years ago W1CW made an awesome looking vertical out of a cage of
>>wires which were around rings of PVC pipe.....he took a length of PVC pipe
>>and cut it on the saw into a ton of short pieces....mebbe 1/2" or so long
>>"pipes" - then attached the wires to one of these spacing them every coupla
>>feet.......it looks awesome....as to whether it really adds
>>bandwidth...dunno...but gawd it looks really hammy!   73, Jim, K4OJ
>>
>>
>>Jim:
>>
>>   Found the following on DejaNews, it may be another way to skin that cat!
>> :-)
>>
>>73, DavidC  AA1FA
>>
>>
>>yo3ctk@alltrom.ro (Mihail Mateescu) wrote:
>>
>>>Hi everybody,
>>
>>>I wonder if someone has any practical experience with an unusual H.F.
>>>antenna: G4ZU "canary cage" quad. I discovered it in an article in Radio
>>>REF magazine, March 1978. According to author D. Nicolle, F6AZP, this
>>>antenna was invented in 1957 and is covered by several patents
>>
>>The antenna is called the G4ZU Bird Cage.  The original article was in
>>the April 1960 CQ magazine.  The antenna was made commercially along
>>with his popular G4ZU 20, 15, 10 minibeam.
>>
>>The antenna is two full size loops bent back toward mast in a v shape.
>>at the top and bottom..the loop is in 4 arms and two sides on each
>>element.  G4ZU used a driven element and a reflactor as they are very
>>closed space.  The gain is closer to a 2 el quad (about 6Dbd) but if
>>one had a tall rotating tower you could put up a great 80 or 160 beam.
>>
>>I have the G4ZU commercial birdcage and we used it for a number of
>>years on Field day with great results.   I am using part of the
>>antenna for a W9PNE X-beam on 12
>>
>>I would be glad to send you a copy iof the CQ article  f you will
>>provide an address
>>
>>73, Dave K4JRB
>>
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