medium-wave
2017
- 2017-12-10 – Two megawatt medium wave AM/DRM transmitter
2004
- 2004-11-10 – Intense aurora north of Detroit, Nov. 2004
2000
- 2000-11-28 – Meteors and Aurora MW / HF / VHF propagation
1999
- 1999-12-24 – AM radio high fidelity Part 15 broadcast
1995
- 1995-07-02 – Monitor ionosphere with AM radio
1990
- 1990-04-28 – Science fair crystal radio performance issues