A | B | C | D | E | F | G | H | I | J K L | M | N | O | P | Q |
R | S | T | U | V | W | X Y Z #
OAD optical admittance diagram
OATS open area test site
OBU on board unit
OCDMA orthogonal code-division multiple access
OCPAR optically controlled phased-array radar
OCXO oven-controlled crystal oscillator
ODU outdoor unit (wireless)
OEIC optoelectronic integrated circuit
OEM original equipment manufacturer
OFDM orthogonal frequency division multiplex
OFDMA orthogonal frequency division multiple access
OFHC oxygen free high conductivity (copper)
OFS operational fixed service
OHI one horn interferometer
OMC operations and maintenance center
OMI optical modulation index
OMT orthogonal mode transducer
OOK on-off keying
OPBO output power backoff
OPIP output power intercept point
OPLL optical phase locked loop
OQPSK offset quadrature phase-shift keying
ORFS output RF spectrum
OSI open systems interconnection
OTDR optical time domain reflectometer
OTH over the horizon
OVSF orthogonal variable spreading factor