Originally Posted by
AgentSmith
Just curious how difficult it would be to use an old fashioned ADF with a COMM frequency.
Do you mean commercial AM Radio? Yes, it works just fine for that.
The frequency band assigned for NDBs is adjacent to the range for AM radio, and ADF receivers cover both bands.
If you mean aviation communication radios, no those are VHF and operate at a higher frequency range than the ADF.