dd Flashcards
The Very High Frequency Omnidirectional and Radio Range (VOR) power supply 1A7 is an alternating current (AC) to direct current (DC) converter that supplies a volts direct current (VDC) of
40.5
The AN/FRN-43 unit that measures and checks the Very High Frequency Omnidirectional and Radio Range (VOR) signals against established parameters is the
rf monitor
The AN/FRN-45C tactical air navigation (TACAN) antenna produces an electrically scanned radiation pattern by modulating the pulsed radio frequency (RF) from the transponder with what two frequencies?
15 and 135 hertz (Hz).
In the AN/FRN-45C tactical air navigation (TACAN) X mode, the difference in frequency between the received frequency and assigned transmit (Tx) frequency is
63 mhz
The AN/FRN-45C Tactical Air Navigation (TACAN) System frequency range, in megahertz (MHz), is
962 to 1213.
Which software is the AN/FRN-45C tactical air navigation (TACAN) personal computer (PC) equipped with to communicate with the system equipment?
mdt
At which rate, in revolutions per minute, and direction does the AN/FRN-45 tactical air navigation (TACAN) antenna pattern appear to rotate?
900, clockwise.
If an aircraft receives signals from two ground beacons operating on the same frequency, the
weaker signal is almost totally rejected.
The most important result of maintaining a constant AN/FRN-45 Tactical Air Navigation (TACAN) System duty cycle is
pattern stability
The total number of pulse pairs transmitted by the AN/FRN-45 Tactical Air Navigation (TACAN) System is
3,600
How many pulse pairs make up an auxiliary reference burst (ARB)?
6
The microsecond (µs) spacing between the AN/FRN-45 Tactical Air Navigation (TACAN) System pair pulses in the X mode is
12
The AN/FRN-45 Tactical Air Navigation (TACAN) System uses pulse coding to
discriminate against interference
The output of the transmit (Tx) section of the AN/FRN-43 Very High Frequency Omnidirectional and Radio Range Tactical Air Navigation (VORTAC) System coder/decoder (CODEC) is controlled by the
START/STOP switch.
The visual status lamps on the AN/FRN-43 Very High Frequency Omnidirectional and Radio Range Tactical Air Navigation (VORTAC) System control indicator display the
actual status of the remote site.
Which adjustment can air traffic control (ATC) personnel make to the AN/FRN-43 Very High Frequency Omnidirectional and Radio Range Tactical Air Navigation (VORTAC) System control indicator?
Volume control of audio
Within the AN/FRN-43 Very High Frequency Omnidirectional and Radio Range Tactical Air Navigation (VORTAC) System, the personal computer (PC) display is divided into how many main windows?
2
What is the primary method of operator control and monitoring of the Very High Frequency Omnidirectional and Radio Range (VOR) navigational set?
Local and remote personal computer (PC).
How is the AN/FRN-43 Very High Frequency Omnidirectional and Radio Range Tactical Air Navigation (VORTAC) System local personal computer (PC) connected to interface with the remote PC?
modem
One purpose of the squitter pulses transmitted from the tactical air navigation (TACAN) is to
maintain constant transmitter duty cycle.
The tactical air navigation (TACAN) coded reply signals are used by aircraft to determine their
distance from the ground station.
How many monitors must fail or detect a fault for the AN/FRN-45 Tactical Air Navigation (TACAN) System to shut down?
2
Which AN/FRN-45 Tactical Air Navigation (TACAN) System power supply output, in volts direct current (VDC), is over current and over voltage protected?
65
Which indication on the modulation generator (mod gen) display will a low power fault give on the AN/FRN-45 tactical air navigation (TACAN) modulation generator (mod gen)?
78
