TACTICAL TOOLS CORPORALS COMPREHENSIVE
EXAM ALL QUESTIONS AND ANSWERS SURE A+
✔✔INSPECTIONS - ✔✔Compasses are delicate instruments and should be cared for
accordingly. A detailed inspection is required when first obtaining and using a compass.
Your inspection should ensure:
The floating dial's glass and crystal parts are not broken.
The numbers on the dial are legible.
The floating dial does not stick.
The sighting wire is straight.
The bezel ring produces distinct clicks when turned.
You should also periodically check the compass's accuracy at a declination station. If
your compass varies more than three degrees, you should not use it.
✔✔CARE AND MAINTENANCE - ✔✔The lensatic compass was built to increase its
serviceable life. Adherence to a very simple maintenance regimen will significantly
increase the life of the lensatic compass.
Maintenance requirements are as follows:
Rinse in fresh water, especially after exposure to salt water.
Brush off dirt and grime.
Ensure the ridges on the bezel ring are free of dirt.
,Check movement of the rear sight to ensure it is free moving.
✔✔BASIC COMPONENTS OF RADIO EQUIPMENT - ✔✔The radio equipment for
communication between two stations and the path the signal follows through the air is
called a radio link. A radio link consists of seven components: the transmitter, power
supply, transmission lines, transmitting antenna, propagation path, receiving antenna,
and receiver. The transmitter generates a radio signal. The power supply (i.e., battery or
generator) supplies power for the operating voltage of the radio.
When transmitting, the radio operator aims to provide the strongest possible signal at
the site of the receiving station. The best possible signal is the signal that provides the
greatest signal-to-noise ratio at the receiving antenna.
To transmit the best possible signal, select or determine the:
Optimum frequency
Best antenna for that frequency based on the available space of the transmitting site
Proper propagation path
✔✔RADIO MODES - ✔✔The three types of radio modes are simplex, half duplex, and
full duplex.
Simplex mode has one station that may send information over a single frequency. An
example of simplex mode would be AM/FM radio stations.
Half duplex mode has information that can be transmitted and received in either
direction, but not in both directions simultaneously. An example of this is a single-
channel two-way radio such as a Motorola.
Full duplex mode allows for an uninterrupted exchange of information between two
stations. A telephone would be an example of full duplex mode.
✔✔TACTICAL RADIO - ✔✔Tactical radio is the principal means of communications
support for MAGTF maneuver units.
Principle characteristics of tactical radios:
Easy to operate
Networks are easily established
Rapidly reconfigured
Easily maintained on the move
Secure voice communications
Limited data information exchange
✔✔FREQUENCY BANDS AND CHARACTERISTICS - ✔✔Each frequency band has
certain characteristics. The ranges and power requirements are for normal operating
conditions (proper siting, antenna orientation, and correct operating procedures). The
ranges will change according to the condition of the propagation medium and the
transmitter output power. Using the correct frequency is extremely important. Never
leave your frequency unless a higher authorizes you to do so. Always ensure that you
are using the correct frequency.
, There are three tactical single channel frequency bands:
High Frequency (HF) long-distance
Very High Frequency (VHF) short-distance
Ultrahigh Frequency (UHF) short-distance
✔✔High Frequency (HF) - ✔✔The primary advantage of using HF radio is its capability
to provide long-range, over the horizon (OTH) communication. Successful data
communications over the HF range depends on several factors:
Equipment siting
Proper equipment grounding
Types of antennas used
Tactical employment of radio equipment
Path assessment and analysis
Frequency planning and assignment
✔✔Very High Frequency (VHF) - ✔✔The 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. It replaced the AN/PRC-77 and the
AN/VRC-12 family.
The system provides high security against the threat of electronic warfare (EW) by using
frequency hopping with integrated COMSEC.
It is capable of voice and data transmission (up to 16 kbps under optimum conditions
and over limited distances) over the VHF-FM frequency.
✔✔Ultrahigh Frequency (UHF) - ✔✔UHF radios are used for forward air control (FAC)
ground-to-air communication. Line of sight between radios is critical for reliable
communications. Significant range differences are encountered between UHF radios
employed for ground-to-air and ground-to-ground communications. Greater range is
achieved when employed from ground-to-air communications because of the increased
line of sight. When UHF radios are employed in the frequency hopping mode, the
following operating factors must be understood for proper operation:
Hopset
Time of day
Antenna placement
Power setting
✔✔INTERFERENCE - ✔✔Radio frequency interference is always present in a military
environment. It may come from a single source or a combination of many sources
including natural or man-made interference.
Frequency interference can derive from:
EXAM ALL QUESTIONS AND ANSWERS SURE A+
✔✔INSPECTIONS - ✔✔Compasses are delicate instruments and should be cared for
accordingly. A detailed inspection is required when first obtaining and using a compass.
Your inspection should ensure:
The floating dial's glass and crystal parts are not broken.
The numbers on the dial are legible.
The floating dial does not stick.
The sighting wire is straight.
The bezel ring produces distinct clicks when turned.
You should also periodically check the compass's accuracy at a declination station. If
your compass varies more than three degrees, you should not use it.
✔✔CARE AND MAINTENANCE - ✔✔The lensatic compass was built to increase its
serviceable life. Adherence to a very simple maintenance regimen will significantly
increase the life of the lensatic compass.
Maintenance requirements are as follows:
Rinse in fresh water, especially after exposure to salt water.
Brush off dirt and grime.
Ensure the ridges on the bezel ring are free of dirt.
,Check movement of the rear sight to ensure it is free moving.
✔✔BASIC COMPONENTS OF RADIO EQUIPMENT - ✔✔The radio equipment for
communication between two stations and the path the signal follows through the air is
called a radio link. A radio link consists of seven components: the transmitter, power
supply, transmission lines, transmitting antenna, propagation path, receiving antenna,
and receiver. The transmitter generates a radio signal. The power supply (i.e., battery or
generator) supplies power for the operating voltage of the radio.
When transmitting, the radio operator aims to provide the strongest possible signal at
the site of the receiving station. The best possible signal is the signal that provides the
greatest signal-to-noise ratio at the receiving antenna.
To transmit the best possible signal, select or determine the:
Optimum frequency
Best antenna for that frequency based on the available space of the transmitting site
Proper propagation path
✔✔RADIO MODES - ✔✔The three types of radio modes are simplex, half duplex, and
full duplex.
Simplex mode has one station that may send information over a single frequency. An
example of simplex mode would be AM/FM radio stations.
Half duplex mode has information that can be transmitted and received in either
direction, but not in both directions simultaneously. An example of this is a single-
channel two-way radio such as a Motorola.
Full duplex mode allows for an uninterrupted exchange of information between two
stations. A telephone would be an example of full duplex mode.
✔✔TACTICAL RADIO - ✔✔Tactical radio is the principal means of communications
support for MAGTF maneuver units.
Principle characteristics of tactical radios:
Easy to operate
Networks are easily established
Rapidly reconfigured
Easily maintained on the move
Secure voice communications
Limited data information exchange
✔✔FREQUENCY BANDS AND CHARACTERISTICS - ✔✔Each frequency band has
certain characteristics. The ranges and power requirements are for normal operating
conditions (proper siting, antenna orientation, and correct operating procedures). The
ranges will change according to the condition of the propagation medium and the
transmitter output power. Using the correct frequency is extremely important. Never
leave your frequency unless a higher authorizes you to do so. Always ensure that you
are using the correct frequency.
, There are three tactical single channel frequency bands:
High Frequency (HF) long-distance
Very High Frequency (VHF) short-distance
Ultrahigh Frequency (UHF) short-distance
✔✔High Frequency (HF) - ✔✔The primary advantage of using HF radio is its capability
to provide long-range, over the horizon (OTH) communication. Successful data
communications over the HF range depends on several factors:
Equipment siting
Proper equipment grounding
Types of antennas used
Tactical employment of radio equipment
Path assessment and analysis
Frequency planning and assignment
✔✔Very High Frequency (VHF) - ✔✔The 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. It replaced the AN/PRC-77 and the
AN/VRC-12 family.
The system provides high security against the threat of electronic warfare (EW) by using
frequency hopping with integrated COMSEC.
It is capable of voice and data transmission (up to 16 kbps under optimum conditions
and over limited distances) over the VHF-FM frequency.
✔✔Ultrahigh Frequency (UHF) - ✔✔UHF radios are used for forward air control (FAC)
ground-to-air communication. Line of sight between radios is critical for reliable
communications. Significant range differences are encountered between UHF radios
employed for ground-to-air and ground-to-ground communications. Greater range is
achieved when employed from ground-to-air communications because of the increased
line of sight. When UHF radios are employed in the frequency hopping mode, the
following operating factors must be understood for proper operation:
Hopset
Time of day
Antenna placement
Power setting
✔✔INTERFERENCE - ✔✔Radio frequency interference is always present in a military
environment. It may come from a single source or a combination of many sources
including natural or man-made interference.
Frequency interference can derive from:
