TM 11-5820-890-10-3
SECTION II. EQUIPMENT DESCRIPTION
ITEM
PAGE
Capabilities and Features..................................................................................................................................................1-4
Characteristics...................................................................................................................................................................1-4
Differences Between Models.............................................................................................................................................1-5
Equipment Data.................................................................................................................................................................1-5
Weights and Measurements .............................................................................................................................................1-5
Performance ......................................................................................................................................................................1-6
Location and Description of Major Components ...............................................................................................................1-7
CAPABILITIES AND FEATURES
SINCGARS is composed of a receiver and a transmitter. Together, the Receiver-Transmitter (RT) has many capabilities
and features that enable you to perform your mission more effectively.
Single channel (SC) frequency modulation (FM) operation in VHF band (30-87.975 MHz).
Frequency hopping (FH) mode for ECCM operation.
Preset channels: Eight for SC mode; six for FH mode.
Quick, silent, push-button digital tuning.
Visual electronic displays: provide for quick checks and prompts.
Self-test for fast checking of equipment condition.
Voice and digital data communication.
2320 SC channels.
CHARACTERISTICS
TRANSMITTER
DUTY CYCLE (MP only) (amount of receiving time versus transmitting time): MP SINCGARS duty cycle is
9:1. With a new battery, your RT is capable of continuous transmission (handset push-to-talk continuously
pressed) for at least one hour.
PRIMARY BATTERY LIFE (MP only): MP 18 to 20 hours at 700 F,
POWER DRAIN (average amount of battery current consumed): At average battery supply voltages 2.8
amperes, maximum (manpack), 6 amperes at 27.5 volts (vehicular).
CARRIER DEVIATION (voice): 6.5 kHz with audio input of 1.4 to 140 millivolts.
MICROPHONE INPUT IMPEDANCE: 150 ohms.
AUDIO INPUT (minimum): 1.4 millivolts, normal; 0.4 millivolts, whisper (WHSP).
SQUELCH TRIGGER: Squelch tone signal at 150 Hz transmitted with RT FCTN set to any operating position.
RECEIVER
RF (Radio Frequency) SIGNAL SENSITIVITY: 0.35 microvolts, minimum.
IF (Intermediate Frequency) BANDWIDTH: 25 kHz,
AUDIO OUTPUT IMPEDANCE: 600 ohms (handset at AUD/DATA or AUD/FILL).
SQUELCH: Responds to 150 Hz tone with RT FCTN (Function) set to SQ ON (Squelch On) or LD (Load).
POWER DRAIN: At average battery supply voltages, 225 milliamperes, (manpack) 0.75 amperes (SR), 1.07
amperes (SR/LR), 0.93 amperes (LR), and 1.5 amperes (LR/LR).
1-4
