We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Author Topic: Amalgamated DGPS Software Feature Request: Frequency Measurement  (Read 513 times)

Offline skeezix

  • Global Moderator
  • DX Legend
  • *****
  • Posts: 3304
  • What does 'RNO stand for?
    • View Profile
According to:

COMMANDANT INSTRUCTION M16577.1:
Ch 3, Section C:
Frequency Tolerance: The carrier shall maintain a frequency accuracy within plus or minus 6ppm. (e.g., 2Hz for a 325KHz broadcast)


With stability like this, I think it would be useful to provide the current measurement from the recorded file with what it should be which could show the freq offset of the receiver.

Along with frequency measurement:
- What is the drift over time
- Do all stations show this drift or some or one?
- If more than one are drifting, are they consistent or have their own drift?
- Do stations in a region drift similarly?


Minneapolis, MN