Name the antenna systems used with the AN/PRC-119
3ft tape - up to 5 miles
10ft whip- up to 10 miles
OE-254- up to 36 miles
AN/PRC-119 frequency, channels
Sends and receives secure voice and digital data
VHF SINGARS Radio
30 to 87.975 MHz freq
6 COMSEC channels/ 6 frequency hopping channels
8 single channels (SC) for plain text
Name the antenna systems used with the AN/PRC- 150
10 ft Whip Antenna
NVIS Antenna- AS 2259
AN/PRC-150 frequency, channels
Long range secure radio
Frequency Range: 1.6-59.999 MHz
Pre-Set Channels: 200
Communications Material System Custodian (CMS)
The mission of the CMS is to ensure the proper distribution, handling, control, and security of COMSEC material in use throughout the navy.
Encryption is the process of converting intelligible information into an unintelligible form for transmission
Having a "security clearance" means that your are eligible for access to information up to the level shown.
Any breach or possible breach of Security or classified material is known as a compromise and must be dealt with immediately.
Define exclusion area
Where access to the area means access to classified information because the equipment cannot be covered.
Define Controlled area
Next to or surrounds an exclusion or limited area. All of these areas are clearly marked by signs reading "SECURITY AREA - KEEP OUT"
Before a person is allowed access to classified information, he or she must have a security clearance.
How are numbers transmitted
Numbers are transmitted digit by digit except that exact multiples of hundreds and thousand may be spoken as such.
Preceded by Figures to Follow.
What are Precedence Prowards
Define Read back
Means to transmit the entire transmission back exactly as you received it
A condition wherein normal message and telephone traffic is drastically reduced in order that messages connected with an actual emergency shall not be delayed.
Essential elements of friendly information
o A code that allows us to notify one another of a security breach that has occurred over the circuit.
Term used to identify an EEFI violation. Example: "BEADWINDOW Three" indicates to the transmitting station that the radio operator has violated security. BEADWINDOW procedures are incorporated into the OPORD.
What is the only authorized reply to DEADWINDOW
Position - Friendly or enemy position, movement or intended movement; position, course, speed, altitude or destination of any sea, air or ground element unit or force.
Capabilities - Friendly or enemy capabilities or limitation; force composition or identity capabilities, limitations or significant casualties to special equipment, weapon systems, sensors, units, or personnel. Percentages of fuel or ammunition remaining.
Operations - Friendly or enemy operations, intentions, progress or results; operational or logistic intentions; assault objectives; mission participants; flying programs, mission situation reports; results of friendly or enemy operations.
Electronic Warfare (EW) - Friendly of enemy EW/EMCON intentions, progress or results; intentions to employ EA; results of friendly or enemy EA: objectives of EA; results of friendly or enemy EP; results of ESM; present or intended EMCON policy; equipment affected by EMCON policy
Personnel - Friendly or enemy key personnel; movement or identity of friendly or enemy flag officers; distinguished visitors; unit commanders; movements of key maintenance personnel indicating equipment limitations.
COMSEC - Friendly or enemy COMSEC locations; linkage of codes or code words with plain language; compromise of changing frequencies or linkage with line numbers; circuit designators linkage of changing call signs with previous call signs of units; compromise of encrypted / classified call signs; incorrect authentication procedure.
Wrong Circuit - Inappropriate transmission; information requested, transmitted or about to be transmitted which should not be passed on the subject circuit because it either requires greater security protection or is not appropriate to the purpose for which the circuit is provided.
Define Regular supersession
Supersession based on a specific, pre -determined supersession date for each edition of material. For example, each edition of a monthly keytape is superseded on the first day of the month after its implementation; each edition of ten -day material is superseded on the 11th, 21st, and the 31st of the month.
Define Irregular supersession
Supersession that is not pre-determined but which occurs as a result of use. Editions and individual segments of irregularly superseded COMSEC material are to be destroyed after the material has been used operationally, when the controlling authority directs supersession, or, in the case of maintenance key, it may be used until the key becomes unserviceable. Irregular supersession is normally associated with one -time pads, test key, maintenance key, publications, and equipment.
Define Emergency supersession
An unplanned change of supersession, usually as a result of a compromise.
Range of HF
High Frequency 2 - 30 Mhz
Range of VHF
Very High Frequency 30 - 300 Mhz
Range of UHF
Ultra High Frequency 300 Mhz - 3000 Mhz
Define Top Secret
Exceptionally grave damage
Name the methods of communication in the defense area
Discuss the factors that affect the capabilities of radio communications
Line of sight, weather, densely wooded areas, hills and valleys.
Explain the purpose and use of the STU III/STE telephone
• Purpose: To allow secure voice communication when required
• Use: Use as authorized as per unit SOP and equipment requirements.
Global Positioning System (GPS)
Precision Lightweight GPS Receiver (PLGR)
computes accurate position coordinates, elevation, speed, and time information
Replaced with AN/PSN-13 DAGR
What is the only authorized maintenance on the PLGR
Change out batteries.
Defense Advanced GPS Receiver (DAGR)
GPS to provide location and accurate time for comms gear.
Fits in a 2 magazine ammo pouch
Lighter, smaller, and quicker than PLGR.
What is the order of destroying Keying Material
superseded, effective, then reserve
How long after supersession does keying material need to be destroyed
What is reserve keying material
keying material that will become effective within the next 30 days
What is the order of destruction of COMSEC material when a complete destruction is ordered
1) Keying Material
2) COMSEC Documents
3) COMSEC equipment.
Discuss the characteristic, shipping, handling, and storage of batteries
• All Batteries are considered Hazmat. DO NOT puncture, burn, or expose to high heat. Always check for leakage and proper battery voltage prior to use. Never leave batteries in equipment while in storage. When palletized for shipment the boxes are on the outside edges of the pallet where they can be easily accessed in case of leaks or fire
3 types of batteris and what they are used for
• NiCad: Nickel Cadmium rechargeable battery
• Lithium: Non-rechargeable long life battery
• Alkaline: Non-rechargeable average life battery
What radio is used with the OE-254
What radio is used with the RF-1912
What radio is used with the AS-2259
AN/PRC-150 general characteristics
Long range secure radio
No external encryption device required
Requires 2 BA-5590 or 2 BB-690 Batteries
Smaller and lighter than AN/PRC-104
AN/PRC-150 Modes of operation
• Lower Side Band (LSB)
• Upper Side Band (USB)
• Amplitude Modulation Equivalent (AME)
• Continuous Wave (CW) Modulation
• Frequency Modulation (FM)
AN/PRC-150 Data range
39 tone data to 2400 bps
Serial tone data to 2400 bps (TX), 75 bps (RX)
FSK data to 600 bps
AN/VRC-90A General characteristics
o Vehicle mounted communication
AN/VRC-90A Antenna systems
Vehicular Antenna (AS-3900/3916)
Receiver-Transmitter (RT) (RT-1523/A/B/C/D/E)
Mounting Base (MB) (MT-6352/A), part of installation kit
Vehicular Amplifier Adapter (VAA) (AM-7239/A/B/C/D/E)
Handset (HS) (H-250), part of installation kit
Loudspeaker (LS) (LS-671), part of installation kit
Power Amplifier (PA) (AM-7238/A/B)
Cable (W2), connects RT ANT to PA
Cable (W4), connects RT to VAA
Antenna Cable (CG-3856), part of installation kit
Loudspeaker Cable (CX-13292), part of installation kit
Power Cable, part of installation kit
AN/GRA-39 General characteristics
provides the capability of remotely controlling a radio set up to a distance of 2 miles, using standard field wire
AN/VRC-92A General characteristics
o Used as a base station
o Longer VHF ranges of 10 km to 40km with a 50 watt output
o Requires power supply for stationary operations
o Capable of retransmit use
AN/VRC-92A Antennae systems
Vehicular Antenna (AS-3900/3916), part of installation kit.
VHF handheld SABER 1 General Characteristics
Handheld secure radio
VHF radio with 2.5 - 6 watts
Need radio interface box to fill (ZATI)
VHF - 138 to 174 MHz
Range - 1 to 3 miles
XTS-5000 portable radio General Characteristics
Handheld secure radio
VHF radio with 1 - 6 watts
Crypto fill via cable
VHF - 136 to 174 MHz
Range - 1 to 3 miles
SB-3614A General Characteristics
is a tactical, ruggedized, 30-terminal automatic switchboard.
TA-312/PT General Characteristics
2 wire tactical phone
Talks up to 14 miles wet, up to 22 miles dry
Operates on 2 "D" cells
Press to talk handset
Hand crank to call distant stations
Talk 4 miles in ear piece with dead batteries
With regards to comms what is the difference between "wet" and "dry"
Wet - spliced,
Dry - unspliced
TA-838/PT General Characteristics
ruggedized, solid state field telephone. It can be used as a desk telephone or installed vertically
TA-838/PT o General technical information
Transmission frequency range: 300 to 3,500 Hz.
Distance ranges with DC supervision: The telephone set is located less than 4 miles from the switchboard.
Distance ranges with AC supervision: The telephone set can be located more than 4 miles from the switchboard.
AN/CYZ-10 General Characteristics
AUTOMATED NET CONTROL DEVICE (ANCD)
The ANCD is used primarily for handling of COMSEC keys
20 load sets
120 COMSEC keys
280 transmission security keys
What is used for the fireteam to communicate with the Squad leader
What is used for the Squad leader to communicate with the Platoon commander
What is used for the Company CP to communicate with the COC
TA-1 General Characteristics
Hand held Comm device
Uses WD-1 wire
Talks 4-7 miles
Squeeze signal generator
Press to talk button
Light weight and easy to store
Normally configured in gun loop
Explain Line Of Sight (LOS
Distance between the transmitting and receiving antennas, affected by hills or curvature of the earth. Higher antennas will be able to transmit further.
Reason for a RETRANS site
VHF radios require line of sight, if a mountain or the curvature of the earth is in the way the radios will not communicate to each other. Therefore an intermediate station needs to "retrans" the message.
Discuss RT-1694 Characteristics, Frequency, configurations, Antenna's
HF 1.6 - 59.9999 MHz
fixed channel, frequency hop
Voice and data transmission
PRC 150 man pack
VRC 104 vehicle
GRC 231 base station
AS 2259 NVIS Dipole manpack.
10 ft whip
Discuss RT-1523, Characteristics, Frequency, configurations, Antenna's
VHF 30-87.975 MHz
fixed channel, frequency hop
3 ft tape
10 ft whip
What does PRC, VRC, GRC mean?
Personal Radio Communications
Vehicular Radio Communications
Ground Radio Communications
Discuss RT-1796, Characteristics, Frequency, configurations, Antenna's
VHF/UHF/SATCOM, Voice and data, frequency hopping.
4' blade VHF
8.7' Whip, VHF
SATCOM RF-3080 AT001
Portable, hand-held fill device, for securely receiving, storing, and transferring data between compatible cryptographic and communications equipment
Replaced KYK-13 and KYX-15, KOI-18 paper tape reader
Replaced by AN/PYQ-10 Simple Key Loader