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DIY clone of the commercial Isotron antennas. They are unimpressed with the performance.
to aerial amateur cb hf isotron radio small-aerial ... on 09 January 2010
Build the EH STAR Antenna for 27 MHz Packet Radio edit / delete
Building an EH antenna for CB use. He suggests it works all right, but it's very sensitive to the downlead placement -- i.e. it's using the downlead as a radiator.
to aerial amateur cb eh hf packet radio small-aerial ... on 09 January 2010
EH Antenna Systems edit / delete
More commercial small-space antennas, although this is definitely from the wackier end of the experimental radio spectrum, and nobody agrees with *their* explanation of how they work. (Don't miss the paper that mentions in passing that they think they should get a Nobel prize in physics for the design!)
to aerial amateur eh hf radio small-aerial ... on 09 January 2010
Isotron Antennas - Low Profile Limited and Restricted Space Antennas for HF edit / delete
Commercial HF antennas of unusual design. They get good reviews, although people can't agree on how they work. Pretty, but expensive and not very weatherproof.
to aerial amateur hf isotron radio small-aerial ... on 09 January 2010
Firestik Antenna Company Home Page edit / delete
Neat (and reasonably cheap) aerials that are essentially a loading coil wound onto a fibreglass stick.
CARC Newsletter: The PA0RDT Active Antenna edit / delete
Neat "sampling" antenna for lower frequencies that uses a length of circuit board as a whip with a simple amplifier connected directly to it.
to aerial antenna electronics ham miniwhip radio ... on 03 October 2009
Some antennas for MURS, 2-meters, 70 cm, and UHF-TV edit / delete
From the author of jed.
AA5TB of Fort Worth, Texas edit / delete
Excellent technical stuff about different types of aerials.
Yup, that's about the simplest 2m dipole you can make -- no balun, even. Built one out of 1960s-vintage Rediffusion catenary wire. It works.
to aerial antenna electronics radio ... on 17 September 2009
« earlier | later » Page 2 of 3
- aerial | |
11 | + amateur |
7 | + antenna |
1 | + broadcast |
5 | + cb |
1 | + clock |
8 | + eh |
6 | + electronics |
8 | + ham |
11 | + hf |
5 | + isotron |
1 | + maps |
3 | + microvert |
1 | + miniwhip |
1 | + modelling |
1 | + packet |
20 | + radio |
1 | + retrotech |
11 | + small-aerial |
1 | + spice |
1 | + telephone |
2 | + tv |
tasty by Adam Sampson.