- 1. [TowerTalk] UHF aircraft antenna (score: 1)
- Author: <n0tt1@juno.com>
- Date: Thu, 1 Jan 2015 04:34:13 +0000
- Guys, just curious....what's "inside" one of these aircraft glide slope antennas and how are they matched to say, a 50-ohm coax. One ham has one of these mounted on his car and he uses it for RFI loc
- /archives//html/Towertalk/2014-12/msg00426.html (6,771 bytes)
- 2. Re: [TowerTalk] UHF aircraft antenna (score: 1)
- Author: Jim Lux <jimlux@earthlink.net>
- Date: Wed, 31 Dec 2014 22:50:47 -0800
- Basically half of a folded dipole: a folded monopole. Narrow band matching: Glide slope is a bit above 300 MHz with a span of about 5 MHz, so about 1-2% BW http://en.wikipedia.org/wiki/Instrument_lan
- /archives//html/Towertalk/2015-01/msg00000.html (7,545 bytes)
- 3. Re: [TowerTalk] UHF aircraft antenna (score: 1)
- Author: <n0tt1@juno.com>
- Date: Thu, 1 Jan 2015 17:25:00 +0000
- OK, thanks Jim. I made up a drawing, just for talking purposes. Just guessing here...Does THIS represent the "single port" type of glideslpoe antenna, and how it is matched to say, a 50-ohm coax? All
- /archives//html/Towertalk/2015-01/msg00003.html (9,139 bytes)
- 4. Re: [TowerTalk] UHF aircraft antenna (score: 1)
- Author: Jim Lux <jimlux@earthlink.net>
- Date: Thu, 01 Jan 2015 09:59:37 -0800
- On 1/1/15 9:25 AM, n0tt1@juno.com wrote: OK, thanks Jim. I made up a drawing, just for talking purposes. Just guessing here...Does THIS represent the "single port" type of glideslpoe antenna, and how
- /archives//html/Towertalk/2015-01/msg00004.html (8,016 bytes)
- 5. Re: [TowerTalk] UHF aircraft antenna (score: 1)
- Author: <n0tt1@juno.com>
- Date: Thu, 1 Jan 2015 18:19:13 +0000
- OK, thanks Jim. I've never found an internal drawing or photo... looked and looked...nothing....might have to find a copy of a aircraft antenna engineering book, or maybe JD Kraus' antenna book?? You
- /archives//html/Towertalk/2015-01/msg00005.html (8,684 bytes)
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