---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sat 03/07/15: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:30 AM - Hand-made Glide Slope Antenna (Sam) 2. 06:20 AM - Re: Hand-made Glide Slope Antenna (Robert L. Nuckolls, III) 3. 11:05 PM - Re: Hand-made Glide Slope Antenna (Henry Hallam) ________________________________ Message 1 _____________________________________ Time: 05:30:06 AM PST US From: Sam Subject: AeroElectric-List: Hand-made Glide Slope Antenna Bob - I am considering using/making a hand-made glideslope antenna like the one you show in chapter 13, figure 13-13 (it's a good thing I'm not superstitious!). My only issue is the ferrite beads. They are available in a bewildering variety. What should I use for a dedicated GS antenna? Sam Staton Jackonsville, FL ________________________________ Message 2 _____________________________________ Time: 06:20:08 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Hand-made Glide Slope Antenna At 07:28 2015-03-07, you wrote: > >Bob - > I am considering using/making a hand-made glideslope antenna > like the one you show in chapter 13, figure 13-13 (it's a good > thing I'm not superstitious!). My only issue is the ferrite beads. > They are available in a bewildering variety. What should I use for > a dedicated GS antenna? Leave them off. Those are coming out in the next revision to the 'Connection. Cessna built thousands of similar antennas in the '60s with no beads. Laboratory tests have show them to offer no observable or even measurable benefit. Bob . . . ________________________________ Message 3 _____________________________________ Time: 11:05:07 PM PST US From: Henry Hallam Subject: Re: AeroElectric-List: Hand-made Glide Slope Antenna Bob, Are you still a believer in ferrite beads for transmit antennas, if not for receivers? I was under the impression they helped form a sort of crude balun, preventing RF current from flowing back through the coax sleeve rather than into the arm of the dipole. Cheers, Henry On Sat, Mar 7, 2015 at 6:18 AM, Robert L. Nuckolls, III wrote: > > > At 07:28 2015-03-07, you wrote: >> >> >> Bob - >> I am considering using/making a hand-made glideslope antenna like the >> one you show in chapter 13, figure 13-13 (it's a good thing I'm not >> superstitious!). My only issue is the ferrite beads. They are available in a >> bewildering variety. What should I use for a dedicated GS antenna? > > > Leave them off. Those are coming out in the > next revision to the 'Connection. Cessna > built thousands of similar antennas in the '60s > with no beads. Laboratory tests have show them > to offer no observable or even measurable > benefit. > > > Bob . . . > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.