User's Manual

Heli-Coder 4 Transmitter Operation Manual | Doc. No. 6051452100 Rev. B1
Broadcast Microwave Services, Inc. 24
NMEA 0183 National Marine Electronics Association electrical and
data standard for communication between systems
NTSC The standard analog television system in use in the United States Analog
television encodes television picture information as an analog signal, that is, by
varying the voltages and/or frequencies of the signal.
Omni-Directional Antenna The final transmit element of the microwave system that radiates the signal
approximately equally throughout a 360 degree circle. Does not require aiming
of the antenna.
PAL phase-alternating line A color encoding used in broadcast television systems in large parts of the
world.
RF: Radio Frequency That portion of the Electromagnetic Spectrum that is used for radio and
television transmission.
SDI: Serial Digital Interface Serial Digital Interface - A digitized video format for standard definition
Stand-by The condition of an RF system where all but the transmit circuits are energized.
In this status the system may be switched into transmit mode instantaneously.
(See Transmit)
Stare-Point (SP) Stare-Point or SP refers to the center of a video camera picture
Symbology System of defined symbols
TLL Target Latitude Longitude
TNC Connector Threaded version of the BNC connector (See BNC connector)
Transmit The condition of an RF system where it is sending out signal. (See Stand-by)