Discuss the following single-channel radio frequency bands: UHF.
- Operates in the 116 to 150 MHz upper VHF frequency range and the 225 to 400 MHz military UHF radio spectrum
- MAGTF UHF radio sets such as the AN/PRC-113 are capable of data communications at 16 kbps under optimal conditions
- MAGTF ground and airborne UHF radios incorporate the HAVE QUICK Electronic Counter-Counter Measures capability and operate in single-channel and frequency hopping modes.
- The HAVE QUICK UHF radio is capable of remote operation by using the AN/ GRA-39B or HYX-57
Discuss the following single-channel radio frequency bands: VHF
- Primary MAGTF VHF radio is the single-channel ground and airborne radio system (SINCGARS)
- SINCGARS is a family of lightweight combat radios that serves as the primary means of communications for command and control and fire support on the battlefield
- SINCGARS is the standard VHF-FM tactical radio for the Marine Corps
- System provides high security against threat electronic warfare (EW) by using frequency hopping with integrated COMSEC
- Capable of voice and data transmission (up to 16 kbps under optimum conditions and over limited distances) over the VHF-FM frequency range of 30 to 87.975 MHz’s
Discuss the following single-channel radio frequency bands: HF
- Capable of both long- and short-range secure voice and data communications
- Data communications capability is typically limited to rates of 2.4 kilobits per second (kbps)
- Requires specific modems for data transmission
- High frequency communications are capable of traveling around the world under the right conditions
- HF transmission may be intercepted and traced by the enemy who is many hundreds of miles away
Describe the phonetic alphabet.
A = ALPHA
B = BRAVO
C = CHARLIE
D = DELTA
E = ECHO
F = FOXTROT
G = GOLF
H = HOTEL
I = INDIA
J =JULIET
K = KILO
L = LIMA
M = MIKE
N = NOVEMBER
0 = OSCAR
P = PAPA
Q = QUEBEC
R = ROMEO
S = SIERRA
T = TANGO
U = UNIFORM
V = VICTOR
W = WHISKEY
X = X-RAY
Y = YANKEE
Z= Zulu
Discuss communications security: Top Secret
Top Secret is the classification level applied to information whose unauthorized disclosure could reasonably be expected to cause exceptionally grave danger to the national security
Discuss communications security: Secret
Secret is the classification level applied to information whose unauthorized disclosure could reasonably be expected to cause serious damage to the national security
Discuss communications security: Confidential
Confidential is the classification level applied to information whose unauthorized disclosure could reasonably be expected to cause damage to the national security
Discuss the purpose of Internet Tactical Chat in Support of Operations
- Tactical chat (TC) is a near-real-time, multi-participant means of textually communicating among military units
- TC allows for predominantly jam free communications, similar to radio voice communications, over the internet
- In some instances, TC is the most effective means for war fighters to communicate, especially when mission conditions hamper information that would typically pass over voice communications.
- Anyone with a computer, a network connection, and compatible TC software can communicate textually using TC
What are the TWO MODES of operation for the Single Channel Ground and Airborne Radio System (SINCGARS)?
Single channel (SC)
Frequency hopping (FH)
Using the metric system, what are the transmission RANGES for the SINCGARS radio?
LO (Low power) - 200 M - 400 M
M (medium power) - 400 M – 5 KM
Hi (high power) – 5 KM - 1OKM
PA (power amplifier) - 10 KM - 40 KM
