Re: [Elecraft] Very short 80m antenna

[Jim Brown]

On Sun,1/22/2017 4:34 AM, Vic Rosenthal 4X6GP wrote:
there is no way to put up a vertical more than about 3m high, and no 
room for radials longer than a few meters. 


Hi Vic,

Can you bond to the structure of your building near the base of a 
vertical?  If so, it will serve as a very effective counterpoise. Then 
your 6m vertical with loading has a pretty good chance of working fairly 
well.


73, Jim K9YC


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Re: [Elecraft] Very short 80m antenna

[Harry Yingst via Elecraft]

A good book to read on this subject is "Short Vertical Antenna and Ground 
Radial" By Jerry Sevick W2FMI


http://www.universal-radio.com/catalog/books/0554.html



  From: James Rodenkirch 
 To: "elecraft@mailman.qth.net"  
 Sent: Sunday, January 22, 2017 8:03 AM
 Subject: [Elecraft] Very short 80m antenna
   
Don't give up on the notion of a shortened vertical just yet, Vic.

Peruse this site and see if there is anything  that can help - 
http://www.arising.com.au/people/holland/ralph/shortvert.htm

72 de Jim Rodenkirch K9JWV
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Re: [Elecraft] Very short 80m antenna

[brian]

How about 0.007 wavelenght?  NAA did this on 24 KHz with 800-960' 
towers.  The key is the extensive top hat design and $$$.


Feedpoint Z =

On 1/22/2017 13:09 PM, James Rodenkirch wrote:

A couple of other "info sites to explore," Vic.

http://www.k7mem.com/Electronic_Notebook/antennas/shortant.html

http://www.qsl.net/vk3jeg/loadpole.html

http://www.qsl.net/vk3jeg/loadpole.html (good info on capacitive hats here)

72 de Jim Rodenkirch K9JWV
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Re: [Elecraft] Very short 80m antenna

[Hajo Dezelski]

Hi,
everything is possible: https://www.qrz.com/db/K2MIJ

73 de Hajo
Gruss
Hajo

---
Cela est bien dit, mais il faut cultiver notre jardin.

http://hajos-kontrapunkte.blogspot.de/


On Sun, Jan 22, 2017 at 2:03 PM, James Rodenkirch
 wrote:
> Don't give up on the notion of a shortened vertical just yet, Vic.
>
> Peruse this site and see if there is anything  that can help - 
> http://www.arising.com.au/people/holland/ralph/shortvert.htm
>
> 72 de Jim Rodenkirch K9JWV
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to dl1...@gmail.com
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