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  • Evaluation Of The Black River Mine Telecommunication System - Document Summary
    The system evaluated was installed in a typical metal/non-metal room and pillar mine and utilized UHF repeaters connected to a unique distributed antenna and passive reflector system which provided mine-wide communications.
  • Evaluation Of The Black River Mine Telecommunication System - Document Summary
    The system evaluated was installed in a typical metal/non-metal room and pillar mine and utilized UHF repeaters connected to a unique distributed antenna and passive reflector system which provided mine-wide communications.
  • Abstracts and References
    Passive repeaters are expected to be most useful in the uhf band.
  • Passive reflectors as a means for extending UHF signals down intersecting cross cuts in mines or large corridors
    By using passive reflectors, it should be possible to establish a UHF radio systemin the mine whichw i l l provide reliable communicationsin all � � inactive excavated area, This system would use four twelve watt base mobile repeaters located near the two �
  • 2011 Index IEEE Antennas and Wireless Propagation Letters Vol. 10
    � Split-Ring Resonators; LAWP 2011 824-826 Wang, L., Qu, S.-W., Li, J., Chen, Q., Yuan, Q., and Sawaya, K., Experimental Investigation of MIMO Performance Using Passive Repeater in Multipath Environment; LAWP � � Y., and Wang, G., UHF RFID Tag for Integration �
  • 2012 Index IEEE Transactions on Microwave Theory and Techniques Vol. 60
    Moezzi, M., +, TMTT April 2012 1069-1078 UHF antennas A Compact 3-D Harmonic Repeater for Passive Wireless Sensing.
  • 1979-1980 Conference Index
    � transducers; Underwater acoustic transducers Acoutooptic correlators sonar signal processing; image plane correlator for passive sonar ambiguity surface � � Desmond F; ICC 80 Vol 2 Paper 30.1 Active filters, RC equalizers, Bode-type variable equalizer; Cordell, R. R.; NTC 79 Vol 1 Paper 14.2 regenerative repeaters ; multispeed repeater using variable � � Vol 2 807 airborne UHF antennas for jamming protection �
  • Use of passive repeaters for tunnel surface communications
    A passive repeater system consists of two antennas connected together with a transmission line. When using VHF or UHF transceivers, one can use 5/8 wave mobile antennas, such as the Larson �
  • CR4 - Thread: Automation
    � are used to increase coverage areas geographically that would otherwise not receive any signal without said repeater . An example of a 'splitter' is your common VHF/ UHF coax splitter, these general are passive and have a small loss in signal associated with it have a bandwidth of 5 to 900MHz or so.
  • Subject index
    � AES 74 Nov 765-769 (lB02) Radio position measurements satellite orbit determination from passive range observations; near � Pisacane, V. L., F-AES 74 Jul 487-491 (lF03) Radio relay systems UHF system for military applications; Same Frequency Repeater program.