103 COMMUNICATIONS SECURITY MATERIAL SYSTEM FUNDAMENTALS SCWS NMCB SPECIFIC NAVEDTRA 43904-1B

30-87.975 MHz,2320, 200M-36 Miles,BA-5590 or BB-590 3ft tape or 10ft whip or OE254 VHF SINCGARS Radio Sends and receives secure voice and digital data 6 Comsec channels/ 6 Frequency hopping channels 8 Single Channels (SC) for plain text

AN/PRC-150,Uses RT-1694, same characteristics, 20 watt output, weight 8.9 pounds, Uses either two BB-390 or two BB-5590, Antennas: 10” whip, up to 50 miles AS-2259, between 250-350 miles

Voice and Data capable Interoperable with:– PSC-5 (SATCOM)– PRC-119 (VHF)
• Power supply:
– 26VDC Nominal
– works with three different batteries
• Frequency range:
– VHF Low 30.000 to 89.999 MHz– VHF High 90.000 to 224.999 MHz – UHF 225.000 to 512.000 MHz – UHF SATCOM 243.000 to 270.000 MHz and 292.000 to 318.000 MHz • Immersion: 3ft. of water
• Altitude: up to 15,000 ft
– operate after air drop from
40,000 ft. • Weight: 15.9 lbs (with two batteries)

30-87.975 MHz,2320, 10 km-40km, BA-5590 or BB-590 10ft AS-3900 or OE254, Base Station /One RT/1523 radio 25 watt output One power amp/Longer VHF ranges Requires power supply for stationary operations Capable of retrans use

VHF 138 to 174 MHz Varies 1 to 3 miles Ni-Cad Recharge Internal Handheld secure radio VHF radio with 2.5 - 6 watts Need radio interface box to fill

interoperable digital portable radio, Hand Held, VHF, UHF, 700 MHz, 800 MHz

SB-3614 30 line switchboard
Tactical, ruggedized Switchboard operator can monitor, answer, initiate, extend, preempt and release calls Conference call capability
Can be used to connect to DSN or commercial lines

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

TA-838-Operates on 4 C cell batteries -Full duplex handset, no push-to-talk -Use keypad to dial other stations, when hooked up through SB-3614, pick up handset to ring other station when point-to-point
-Can be connected, through a SB-3614, to DSN -Uses WD-1 wire, 2- or 4-wire connection

Radio Set Control Group remotely controls a radio
set up to a distance of 2 miles, using standard field wire.
Puts radio in most desired location while keeping operator safe.

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

12 line switchboard- Operator uses headset -Hand ringing generator -Can interconnect calls -29 line packs when stacked (2) -Uses 4 “D” cell batteries when used with operator pack -Audio/visual call indicator

Primary Data Switch System for the MAGTF -Interconnects all end-user Tactical Data Systems -Inter-networks deployed FMF with:
In-theater Joint Information Systems -Strategic Level Defense Networks -Global Internet

Tactical Employment Loops:
Rifleman-Fireteam Leader-SQD Leader-PLT Leader- Company CP-COC-Regiment/ MAGTAF = Strong coordination between rifleman up to MAGTAF and beyond can ensure a victorious outcome for any combat mission assigned to a Seabee organization.

Performance of this task involves the use of an ANCD as asource of COMSEC keys, FH data (hopset, TSK, and net ID), and synctime. By use of the ICOM fill procedure, COMSEC, FH data, and synctime are simultaneously loaded into all six channels of the SINCGARSradio. Upon completion of the ICOM fill, the radio is fully prepared for secure, frequency hopping communications

All information exchange requirements are
identified once mission analysis is completed

Communications resources are limited,
frequently critical low-density, and face competing
requirements. Priorities, derived from
information exchange requirements, help balance
available resources with demands

(a) (U) Vegetation impact.
(b) (U) Terrain impact.
(c) (U) Soil composition.
(d) (U) Space weather.
(e) (U) Terrestrial weather.
(f) (U) Manmade terrain.