This page focuses mostly on propagation.

  1. Nature's Invisible Radio Mirror
    That's the Ionosphere. James F. Van Delta WA2FQZ, Radio Electronics Nov 1961
  2. VHF Ionospheric Propagation
    George Jacobs W3ASK and Stanley Leinwool, CQ Magazine Nov 1969. Good reading.
  3. The Mystery Behind TV DX
    Article on tropospheric bending from Radio-Electronics May 1951
  4. Interpreting Test Patterns
    Ken Kleidon, April 1952 Radio and Television News
  5. The Effects of Co-channel Interference on KVOO during the Summer 1942
    Analyzing Es effects on KVOO. See page 14-16.