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Re: [TowerTalk] Fw: Detailed R5 and or R7 Trap information

To: Marc Tessier - VE3TES <ve3tes@cogeco.ca>
Subject: Re: [TowerTalk] Fw: Detailed R5 and or R7 Trap information
From: John Tait <johnei7ba@eircom.net>
Date: Sun, 16 Mar 2008 19:19:48 +0000
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Hi Marc.
                 Take a peek at these..

http://www.iol.ie/~bravo/r7_vertical.htm
http://www.mrs.bt.co.uk/mrs/r5/
http://www.xs4all.nl/~pa0fri/Ant/R5/onhr5eng.htm
http://www.telusplanet.net/public/telwest/R7/cushcraft_trap.htm
  Vy 73
     John EI7BA

Marc Tessier - VE3TES wrote:
> Hello once again group, This time I write to you in hopes that someone out 
> there has a Cushcraft R7 apart and or down on the ground. Reason I am hoping 
> for this is simple, I recently purchased a used R7 from a fellow not too far 
> away from me, and after spending  9+ hours yesterday,trying to get the match 
> in a somewhat reasonable operational range, I decided to consider the 
> inevitable, that the traps have been dismantled and not re-installed 
> properly.  I now know this to be a fact, because after a quick search through 
> the archives here on tower talk, I found a post by the person I bought the 
> antenna from dated 2005, where he was looking for similar information I am 
> looking for today, dimensions and spacing of all traps on the R7. So far to 
> date I have managed to get 20,30 and 40 M to load up inside the bands, all 
> others are either just outside or ridiculously way out of band for resonance.
>
> So If you are willing to take some time to go thru each trap I need 
> information for, by all means I would be very grateful for your time and 
> help...
> Feel free to drop me a line or two, and I can better explain what information 
> I require in a greater detail , and save some bandwidth of this reflector. I 
> have already touched base with Cushcraft customer support and they no longer 
> offer any documentation on the traps for the R5 and or R7.
> I plan on creating a web page or two with this data for use by other poor 
> unsuspecting souls that may have either taken their unit apart, without 
> paying attention to the details required to assuring proper re-assembly or 
> they too purchased a antenna in a similar fashion that I did... 
> I would also be interested in hearing from anyone with an R5 on the ground or 
> apart, especially seeing as I already have the 20 to 40M traps setup nicely 
> now. I am going to assume that, Cushcraft just used similar traps for both 
> antennas on like bands.. i.e. 10/12 m traps should be the same on both 
> antennas...
>
> Here's hoping someone out there is willing to help me, I really need to get 
> this antenna operational. I already have way to much money invested in it...
>
> Marc Tessier - VE3TES

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