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Displaying 1-2 of 2 results for author "Hoffman, J. R. (J. Randy)"
Field strength measurements of DGPS and FAA beacons in the 285- to 325-kHz band [microform] / J. Randy Hoffman, John J. Lemmon, Ronald L. Ketchum.
- Text
- [Boulder, Colo.] : U.S. Dept. of Commerce, National Telecommunications and Information Administration, [1997]
- 1997
DGPS field strength measurements at a GWEN site [microform] / J. Randy Hoffman, John J. Lemmon, Ronald L. Ketchum.
- Text
- [Boulder, Colo.] : U.S. Dept. of Commerce, National Telecommunications and Information Administration, [1998]
- 1998
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