SDO Data Entry

SDO Guide


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Any reference to specific products on these pages does not constitute an endorsement by the U.S. Government.

We monitor broadcasts of the Voice of America, Radio Free Europe, Radio Marti, Radio Free Asia, Radio Sawa, Radio Farda and others.

Our main products are numerical summaries [FMDS] and audible samples [RMS] of shortwave, medium wave, and FM reception from over 70 locations around the world.

We provide this information, as well as spectrum occupancy data [bandscans], to our customers via this web site.

If you have questions or comments regarding anything on these pages,
send an e-mail to bw@his.com