Ch 3 (Avionics) Flashcards
What is the range limitation of the VHF radio?
22nm for frequencies below 145MHz.
What is the range limitation of the UHF radio?
Approximately 30nm below 300MHz and approximately 35nm above 300MHz.
What is the range limitation for the FM1 radio in cypher text? Plain text?
Cypher: 22nm
Plain: 29nm
Between 40-80MHz:
Cypher: 16.5nm
Plain: 23
What is the range limitation for the FM2 radio?
22nm, except for frequencies of 32, 40, or 80 MHz, where it can be as low as 13nm.
How do you know the UHF radio is in the FH mode?
There is an “F” followed by the net number.
The Zeroize switch on the EMER panel will not erase classified data in what components?
FCR, DTC
Does the UHF radio simultaneously monitor GUARD frequency?
Yes
What are the requirements for HAVEQUICK?
Time of Day
Word of Day (w/ segments)
Net Number
What component provides security for the UHF radio?
KY-58
How long can it take the FM radio to tune/configure to a COM preset? The radio becomes available after ___ seconds, but transmissions may be broken.
10, 2
What is required for Frequency Hopping? Which radio is capable of FH?
Time
Hopset
Lockout Set
VHF radio
What is the purpose of the IFM and what radio does it support?
Improved FM
It varies the RF power of one of the FM radios.
Transmitting IFM in ___ while both FMs are tuned to the same freq can cause damage to the FM__ radio.
HIGH, FM2
What will happen if you fail to put the IDM into standby before removing aircraft power?
May corrupt or damage data files/IDM.
How many chances do you have to log in to the TI?
3 chances within 3 minutes
Will digital messages be delayed if that particular radio’s mic is keyed at the same time the SEND button is pressed?
Yes
How many TM members can you have? PRI members?
16, 8.
What two types of aircraft can communicate between Longbow networks?
64s and JSTARS
All aircraft must have the same ___ ___ to send/receive the AUTO PP update.
Broadcast ID
What is the furthest distance that can be entered into the TI AUTO SA DISTANCE field?
2km
What causes a FAIL message whenever loading COMSETs?
A failure to tune any of the radios.
How many tactical and nontactical presets can you have on your COM page?
6, 5
What are the three settings for RETRIES when on a Longbow net?
2, 1, and 0
How long do you have to receive a MICKEY when the RECEIVE TIME button is pressed?
60 seconds
What is the difference between plain and cypher transmissions?
Plain: no security
Cypher: Encrypted communication
Does the IDM inhibit button totally inhibit BFT radio transmissions?
Nope. The dedicated power switch must be turned off.
How many messages will be displayed on the SENT ITEMS page (MAIL -> SENTBOX)
10
If you send someone LASER CODES on the MAIL -> FILES page, how many are you sending?
16
What data is derived from the EGIs?
- Heading
- Acceleration
- Angular rate
- Attitude
- Position
- Position error estimate
- Velocity
How many channels does the GPS receiver have?
5
If you put the A/C in “SEA” mode and shut down the aircraft, what mode will you be in when you turn on the A/C?
Sea
If GPS position is given to the EGIs to align to, the EGI position confidence will read approximately ___ km on the TSD UTIL page initially.
.031
If a stored point is given to the EGIs to align to, the position confidence will read approximately ___ km on the TSD UTIL page initially.
9
When a position is manually entered for the EGIs to align to on the GND, the position confidence will initially read ___ km.
.05 km