From HFUnderground

Revision as of 05:16, 12 April 2021 by SV1XV (Talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

This is Costas SV1XV.

Please visit my website and my blog

I also have a collection of photographs and other images on


Interesting stuff

  1. DXing
  3. WUN


  1. HiFER
  2. High Frequency Beacon
  3. Letter beacon
  4. LowFER
  5. Part 15 Beacons
  6. Pictures of high frequency beacons
  7. Radio beacon
  8. Radio propagation beacon


This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these.