unknown 2M yagi

[Bob- W7LRD]

anyone know of a 2M long yagi with 18 or 19 elements that has three reflectors one above and one below the boom, and one on the boom... Looking for info, mfg, specs etc on it.

thanks 73

Bob W7LRD

[ralph lindberg]

Sounds like the old Cushcraft "tri-oginal"

---

From: Bob- W7LRD <w7...@comcast.net>
To: pnwvhfs <pnw...@googlegroups.com>
Sent: Thursday, July 18, 2013 7:53 PM
Subject: [PNWVHFS] unknown 2M yagi

anyone know of a 2M long yagi with 18 or 19 elements that has three reflectors one above and one below the boom, and one on the boom... Looking for info, mfg, specs etc on it.

thanks 73

Bob W7LRD

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[Bob N7CZ]

Hi Bob, 

I used to have one of those at my old place here in Great Falls. Worked 73 grids with it. I'm struggling to recall the manufacturer, but will dig a little. 

Bob N7CZ

Great Falls, Montana 

406.748.N7CZ (6729)

n7...@n7cz.com

http://www.n7cz.com

Google Talk: n7...@n7cz.com

Twitter: @N7CZ

Facebook: Amateur Radio Station N7CZ

Grid Square: DN47im

6M VUCC | DXCC | WAS

Member Pacific Northwest VHF Society #210

Member American Radio Relay League

Member Great Falls Area Amateur Radio Club W7ECA 

[Snort...@aol.com]

What you have sounds like a CushCraft 2meter Boomer.  Not the thing they sell now but 20 or so

years ago. The corner reflector was supposed to be better than a single reflector. Don't know if

they were but I am using one of the 432 versions of the same pattern. Look up CushCraft as part

of MFJ, they list the back manuals there.

[kd7ts]

Hi Bob,

The description sounds like a Cushcraft 3219. The 32 part of the name is
the boom length in wavelenghts and the 19 refers to the number of
elements. I believe these were based on NBS designs.

There is also a 4218XL that were marketed as "boomer". The element spacing
is different as are the boom lengths. Neither of these perform as well,
when stacked, as more modern designs. As a single antenna, they perform
well.

Mike KD7TS

[n6...@aol.com]

It might be an F9FT yagi. does it have square boom stock?

 

bt73Pete, N6ZE 

> wrote:

> anyone know of a 2M long yagi with 18 or 19 elements that has three  
> reflectors one above and one below the boom, and one on the boom...  
> Looking for info, mfg, specs etc on it.
> thanks 73
> Bob W7LRD

Hi Bob,

The description sounds like a Cushcraft 3219. The 32 part of the name is  
the boom length in wavelenghts and the 19 refers to the number of  
elements.  I believe these were based on NBS designs.

There is also a 4218XL that were marketed as "boomer". The element spacing  
is different as are the boom lengths. Neither of these perform as well,  
when stacked, as more modern designs.  As a single antenna, they perform  
well.

Mike KD7TS

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~The Voice of the Pacific NorthWest VHF Society~
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To post to this group, send email to PNW...@googlegroups.com

[Edward R Cole]

I had a 19-element F9FT that had three reflectors.  Knew it was French but forgot the exact name (Tonna).  I do not recall if it had a square boom.  I think I sold it about 20-years ago.  I got it at the 1978 West Coast VHF Conference in Las Vegas as a door prize.  Seems to me that the two outer reflectors were on a angled bracket so they were spaced slightly behind the main reflector. 

Tonna still sells antennas (I think) but believe the design has changed since then.  There is a virus on the F9FT website so don't  go there.  My Malwarebytes sw intercepted one when I tried.

73, Ed - KL7UW

73, Ed - KL7UW
http://www.kl7uw.com
dubu...@gmail.com
"Kits made by KL7UW"