[AReU] Re: AReU Digest, Vol 43, Issue 3

[George Collier]

Hey Bob,
Only Tony Stone has a service scope that works
George
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> Today's Topics:
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>    1. Scoping It Out (Bob Haynes)
>    2. Fw: Double It (Tony  Stone)
> 
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----------------------------------------------------------------------
> 
> Message: 1
> Date: Sat, 25 Aug 2007 13:49:36 -0400
> From: "Bob Haynes" <rhaynes5 at tampabay.rr.com>
> Subject: [AReU] Scoping It Out
> To: "AReU Net" <areu at mailman.qth.net>
> Message-ID:
> <000a01c7e740$4dfe40a0$6401a8c0 at haynes068ce5db>
> Content-Type: text/plain;	charset="iso-8859-1"
> 
> If someone would volunteer to bring a service 'scope
> to the next AReU meeting, Ron N4INM could use it to
> modify my Kenwood 
> TM-241A.
> Anyone care to volunteer to bring a service 'scope?
> 
> As that old TV ad used to say;
> "Aren't you glad YOU use Scope?
> - Don't you wish EVERYBODY did?"
> 
> Thanks in advance
> 
> 73,
> Bob WB4AKA
> (813) 657-1200
> 
> ------------------------------
> 
> Message: 2
> Date: Sat, 25 Aug 2007 20:48:02 -0400
> From: "Tony  Stone" <w4tas at gte.net>
> Subject: [AReU] Fw: Double It
> To: "AREU GROUP" <areu at mailman.qth.net>
> Message-ID: <019c01c7e77a$c1da8b20$0d02a8c0 at TONY>
> Content-Type: text/plain; format=flowed;
> charset=iso-8859-1;
> 	reply-type=original
> 
> 
> ----- Original Message ----- 
> From: Tony Stone
> To: AREU GROUP
> Cc: BOB HAYNES
> Sent: Saturday, August 25, 2007 7:16 PM
> Subject: Fw: Double It
> 
> 
> I thought I would give you my opinion on the AREU
> reflector to see if any 
> one else had a better idea.
> 
> If you have a doublet that covers from 40 to 10
> meters it will perform 
> almost exactly like a dipole cut
> for 40 meters. At the higher frequencies all of the
> power will still be 
> radiated from the doublet but the
> pattern will change. There will be only two lobes at
> 40 meters with either 
> antenna but at progressively
> higher frequencies there will be more lobes. I
> believe the number of lobes 
> doubles with frequency.
> To explain, there will be four lobes at 20 meters
> with the doublet and each 
> lobe will be 3 db down
> from the original lobes at 40 meters given the same
> power into the antenna. 
> If you were to shorten
> the doublet to close to a half wavelength at 20
> meters there will again be 2 
> lobes with each 3 db
> stronger that the original 4 lobes with the doublet
> cut closely to 40 
> meters.
> 
> If anyone can explain it better, have at it.
> 
> Hope this helps.
> 
> Tony
> 
> 
> ----- Original Message ----- 
> From: Bob Haynes
> To: Stone, W4TAS Tony
> Sent: Saturday, August 25, 2007 3:19 PM
> Subject: Double It
> 
> 
> I realize doublets can be used with a tuner to work
> on many bands, but for 
> use on any one frequency,
> how does the performance of a doublet compare to a
> dipole at the same 
> height, cut to the exact correct length,
> with a good balun and good coax?
> 
> 
> Have a GREAT day!
> Bob WB4AKA
> 
> 
> 
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> 
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> End of AReU Digest, Vol 43, Issue 3
> ***********************************
> 



       
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