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originally posted by: jadedANDcynical
a reply to: LadyGreenEyes
This .pdf will get you started, here's a bit:
Extremely low frequency ELF 3–30 Hz Communication with submarines
Ultra low frequency ULF 300–3000 Hz Communication within mines
Hope that helps
Ernest Durst Bethesda, MD
Owner at McGpcs of Charleston, Inc
Partner at Namath Durst & Associates
Principal at Blue Wireless L L C Treasurer at McG Pcs, Inc.
Treasurer at McG Pcs II, Inc.
Director at Gridiron Sports Management, Inc.
Administration at Washington Nephrology Associates
Mbr at Buffalo - Lake Erie Wireless Systems Co., L.L.C.
Ernest Durst was born in 1949. Ernest currently lives in Germantown . Before that, he lived in Bethesda , MD from 1995 to 2015.