SINGLE CHANNEL (SC) COMMUNICATIONS

TM 11-5820-890-10-8

4.2.

SINGLE CHANNEL (SC) COMMUNICATIONS

4.2a.

Capabilities

SINCGARS is a "single channel" radio in that it can transmit or receive

DEFINITION

on only one channel at a time. Single channel, or the SC mode of

operation, refers to the fact that only one frequency is being used for

The SINCGARS radio will operate on 2320 different frequencies in the

FREQUENCIES

range of 30.000 to 87.975 MHz, with a 25 KHz separation between

frequencies.

Eight single channel frequencies can be loaded into a SINCGARS RT:

CHANNELS

one in each numbered channel 1-6, plus one each in the CUE and

MAN channels.

SC frequencies are loaded via the RT keypad. Although a matter of

LOADING

command policy, operators are normally required to load only those SC

frequencies they are expected to need during mission operations. To

load SC frequencies, use the procedure shown in Figure 4-2, below.

(Also, see Primary Operator Task 1, "Load Single Channel Frequencies

into SINCGARS RT.")

Set FCTN switch to LD; MODE to SC.

(1)

Select CHAN 1-6, CUE, or MAN.

(2)

Press FREQ, then CLR.

(3)

Enter 5-digit frequency.

(4)

Press STO.

(5)

Repeat for each channel to be loaded.

(6)

Figure 4-2. HOW TO LOAD SC FREQUENCIES

4-4