Communications trends ease underground problems
Journal Article
·
· Coal Min. Process.; (United States)
OSTI ID:5039382
New developments in underground mine communications include improved twisted-pair paging phones, selective paging phones and annunciator systems, multi-channel systems with data transmission capabilities, and wireless medium frequency radio systems.
- Research Organization:
- Mine Saf Appl Co, Pittsburgh, Pa, USA
- OSTI ID:
- 5039382
- Journal Information:
- Coal Min. Process.; (United States), Vol. 18:12
- Country of Publication:
- United States
- Language:
- English
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