Many people are looking for that magic antenna that takes very little space and performs very well on HF bands. Some examples of this claim include the cross-field antenna, the EH antenna and the Miracle Whip. Now all of these have their place. I have used a Miracle Whip and it behaves as one would expect i.e. several S points down on a full sized antenna, but it communicates. Even decent DX has been worked with one (11000kms on 5W SSB) during the high sunspot years.
This week my attention has been drawn to the Microvert Antenna (see picture of an example). Is this a more realistic attempt at an efficient, small sized HF antenna? This antenna was developed by DL7PE. The radiator for 7MHz is only 1.33 metres long and the counterpoise is 8.2 metres. the 28MHz version is very small indeed. Perhaps this is worth a try? See also the Microvert Yahoo Group.
Showing posts with label antennas. Show all posts
Showing posts with label antennas. Show all posts
23 May 2009
2 Feb 2009
Stealth antennas
Some very sensible advice on stealth (hidden/disguised) antennas is at G4ILO's website, from where I found the useful propagation table code on the RHS of this blog. http://www.g4ilo.com/stealth.html
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