33
Appendix D: Abbreviations
AC Alternating Current.
BCH Bose, Chaudhuri, Hochquenghem error correction code.
dB
deciBell.
dBi deciBell referenced to an isotropic antenna.
dBm deciBell referenced to a power level of 1 mW.
DC Direct Current.
DDS Direct Digital Synthesizer.
DSP Digital Signal Processor.
IFD Instantaneous Frequency Deviation.
IP
Internet Protocol
GPS Global Positioning System.
HF High Frequency.
Hz
Hertz.
FER Frame Error Rate.
FSK Frequency Shift Keying.
LAN Local Area Network.
mem Memory.
MHz Mega Hertz.
LCD Liquid Crystal Display.
PC Personal Computer.
PCB Printed Circuit Board.
PLL Phase Lock Loop.
rcl
Recall.
RF Radio Frequency.
sto
Store.
STP Shielded Twisted Pair.
TCP Transmission Control Protocol.
UTP Unshielded Twisted Pair.
Warec Directional Waverider Receiver.
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Страница 34: ...34 Appendix E Receiving antennas E 1 Standard groundplane antenna Figure E1 Standard groundplane antenna...
Страница 36: ...36 E 2 Directional Antenna 25 45 MHz Figure E3 Directional quarter wave antenna...