[TowerTalk] radials

[Mike]

Something to try for roof mounted vertical is to staple aluminum foil to 
the roof rafters in the attic and then tie it to vertical's radial system .

At 03:30 PM 9/2/03 -0700, Steven Gehring wrote:
>Since your Hustler vertical is above ground and roof mounted, I would
>install at least one individually cut and tuned 1/4 wavelength radial for
>each band of operation.  Four or more would be better.  This advice
>especially holds true for the higher bands, like 20, 17, 15, and 10M.  On 40
>and 75, the height of the antenna above ground is pretty low, so tuned 1/4
>wavelength radials aren't as necessary in my book (especially on 75/80M).
>Just put down as much wire as you can for decent 40 and 75 meter operation.
>I know it's a lot of wire, but if you want it to play well then this is the
>route to take.  If it was ground mounted (like mine), I wouldn't worry too
>much about lengths, and just put down as much copper as possible (especially
>near the base of the vert).  By the way, several articles have been written
>on tuned, above ground, radial systems.  Search the internet and magazines,
>like QST, for the articles and advice.
>
>73,
>
>Steve Gehring, KZ9G
>Bothell, WA
>E-mail: kz9g at arrl.net
>
>-----Original Message-----
>From: towertalk-bounces at contesting.com
>[mailto:towertalk-bounces at contesting.com] On Behalf Of arholub
>Sent: Tuesday, September 02, 2003 12:52 PM
>To: TowerTalk at contesting.com
>Subject: [TowerTalk] radials
>
>
>Possibly you could help with an ongoing discussion about radials.
>
>I have a roof mounted Hustler 6BTV.
>
>One friend, as well as Hustler, recommends that radials should be cut for
>the individual frequencies.
>
>Another friend recommends that only radials cut for the lowest frequency are
>needed.
>
>My antenna loads (vswr 1.6) on 30 meters ever though no radial is cut for
>that frequency but two are cut for 40 meters.  Incidentally, my roof
>mounting only allows me to mount radials over 180 degrees since the antenna
>is on one corner of the house.  I have two radials each cut for 10/15/20/40
>meters.  Would either of the two recommendations be better or worse for
>radiation angle, etc?
>
>Thanks
>Doc
>WA6OGO
>
>
>
>Visit our web site, www.arholub.com, to get the latest news, computer class
>information and Orange Coast College marine course information.
>_______________________________________________
>
>See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
>Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
>questions and ask for Sherman, W2FLA.
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk at contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>_______________________________________________
>
>See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
>Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
>any questions and ask for Sherman, W2FLA.
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk at contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk

         73,
         Mike, K4GMH