Topband: Helically Wound Vertical

[Gerry Hohn]

I've had great success (considering) with a modified Butternut HF-2V with the 160 kit. 134 countries confirmed from the black hole of Alberta.

Gerry VE6LB/VA6XDX
DXCC Field Checker-Southern Alberta
VE/VA6 QSL Bureau Team
(403) 251-0384
ve6lb at telus.net
http://www.qsl.net/ve6lb/


  ----- Original Message ----- 
  From: DAVID CUTHBERT 
  To: Trent Fleming 
  Cc: Topband at contesting.com 
  Sent: Wednesday, July 15, 2009 5:22 AM
  Subject: Re: Topband: Helically Wound Vertical


  Trent,

  another solution that works well, is relatively inexpensive, and uses
  off-the-shelf components is the Hustler 5BTV vertical. It works on 10, 15,
  20, 40, and 80 meters. Add a DX Engineering top hat (48" spokes) on a second
  RM80S resonator. The top hat and the orginal RM80S mount on the mobile
  triband adapter.

  Radiation efficiency is around 60% on 40 meters, 20% on 80 meters, and 7% on
  160 meters. For a 23' vertical this is not bad. Band with is >200 kHz, 50
  kHz, and 15 kHz respectively..

     Dave WX7G

  On Wed, Jul 15, 2009 at 5:03 AM, DAVID CUTHBERT <telegrapher9 at gmail.com>wrote:

  > Trent,
  >
  > the vertical will outperform the loop at 8'. I can send you plans for a
  > vertical that works on 160, 80 and 40 meters. Simply feed with coax and it
  > covers 20 kHz on 160 meters, 50 kHz on 80 meters, and 200 kHz on 40 meters.
  >
  >     Dave WX7G
  >
  >   On Tue, Jul 14, 2009 at 9:45 AM, Trent Fleming <trent.fleming at gmail.com>wrote:
  >
  >> In a recent ham magazine, there is an article about an HWV for 160m  I am
  >> very interested in having an antenna for 160m, and in having a vertical
  >> for
  >> the low bands in general.  If I were to build this HWV, are there any
  >> techniques I should consider to get it to perform well on 80 and even
  >> perhaps 40m?  Or am I being greedy and just need to focus on the HWV
  >> optimized for 160.
  >> The other low band antenna I am considering is a full sized loop for 80m,
  >> running it around the inside of my 8 foot fence - is that a better option
  >> for 160 as well?  Say a half-wave?
  >> The wisdom of the group is welcomed.  My (new, to me) Kenwood TS-690
  >> arrives
  >> this week and I want to start thinking about low bands for the fall and
  >> winter.
  >>
  >> 73,
  >>
  >> Trent
  >> N4DTF
  >>
  >> --
  >> Trent Fleming
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  >>
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  >>       www.trentfleming.com
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