It's been a while since we needed these, but I used to make them all the time for low band fire (33.70 and 46.38). As I recall, the stub is a short to the opposite frequency - making the antenna appear to not be there. Hence, all the power goes to the 'on frequency antenna'.
Congrats on the third harmonic, BTW. Joe M. Scott Zimmerman wrote: > skipp025 wrote: > > The Catholic Church says only the rhythm method is allowed. > I SOMEHOW don't think that 'method' will help us in this situation. > Although that's how my third child came along. (3 of 3) A BOY BTW!!!!! > (Yea, Me!!) > > >> P.S. I do have a copy of Motorola 68-80100W86 - Diplex > >> Antenna Manual. This document is written for use with > >> "standard base-loaded mobile antennas only." > > > > Is it scanned into or available in a PDF file format? I'd > > really like to see a copy if it's available and easily > > Emailed. Always nice to see how others do things... > > I thought the above was pretty much common knowledge. Please see the > attached PDF file. (Note to Mike Wa6ILQ: Please add to the RB site.) > > I was warned that this document seems to be backwards in that the length > of cable that it says is supposed to go to the higher frequency antenna, > actually goes to the lower frequency antenna and vice-versa. > > I would LOVE to know some of the theory behind this method. I was hoping > to use this on a remote base antenna with 'Station' type antennas, but I > don't think that will work since it clearly states that "Only standard > base-loaded antennas are used" > > Comments? Suggestions? Theory? > > Scott > > Scott Zimmerman > Amateur Radio Call N3XCC > 474 Barnett Road > Boswell, PA 15531 > > > skipp025 wrote: > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > > ------------------------------------------------------------------------ > > > Internal Virus Database is out of date. > Checked by AVG - www.avg.com > Version: 9.0.783 / Virus Database: 271.1.1/2746 - Release Date: 03/14/10 > 03:33:00 >
