Jamie,
You can find some construction comments, VNA scans and links to some of the
best web references here on this page.
http://www.ac0c.com/main/page_so2r_coax_notch_traps.html
See you in the next contest.
73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie
-----Original Message-----
From: Jerry Flanders
Sent: Tuesday, February 14, 2012 3:16 PM
To: James C. Hall, MD ; 'Tom Osborne' ; 'RTTY'
Subject: Re: [RTTY] SO2R Problem
I found much info about making stubs on the internet when I made mine
years ago. I used RG-11, but anything would work, probably even RG6
TV coax. Impedance would not be important. My MFJ 259B antenna
analyzer was helpful, but I think I could have done without it.
Once made, a simple "T" connector on the back of the amp connects
stub and antenna to amp.
Jerry W4UK
At 03:59 PM 2/14/2012, James C. Hall, MD wrote:
>I'm thinking about adding stubs to my SO2R setup. I use the TXBPF filters
>and they work great, but I was crawling way up the band on 20M and also
>looking at 40M, and I could see myself on the P3 panadapter as I approached
>the harmonic. These are monobanders so adding stubs for each band would be
>a
>no-brainer. That should help the situation a bit more.
>
>Does everybody just make their own stubs ? I noticed Array Solutions makes
>'em. I do have a VNA I caould use for this but have never done it.
>
>73, Jamie
>WB4YDL
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