Sending SOI Information by Broadcast Method

TM 11-5820-890-10-8

4.8c.

Sending SOI Information by Broadcast Method

Broadcast is a term used for transmitting SOI information over the air

DEFINITION

from one ANCD to another, using SINCGARS radios for transmission.

LIMITATION

Because of the amount of data involved in an SOI, normally no more

than one time period of information is sent by the Broadcast method.

This is not a limitation of the radio but a consideration that the radio is

used for other purposes.

DATA MODE

The Broadcast method uses the 1200 bits per second data rate of the

SINCGARS radio.

The procedure for sending SOI information by Broadcast Mode is as

PROCEDURE

shown in Figure 4-18, below (also, see Special NCS Task 2, "Transfer

SOI Information Using Broadcast Mode," for detailed procedure.)

Set NCS RT to SQ ON, CT, FH-M, and DATA to

(1)

1200.

Prepare ANCD for Broadcast: select SOI data to be

(2)

sent; enter Broadcast, IDS of stations to be polled;

and new SOI et name.

Connect ANCD to AUD/DATA RT connector, and

(3)

handset to AUD/FILL connector.

Alert net operators to: Standby for Broadcast; go

(4)

to SQ ON, FH, CT, and DATA at 1200.

Direct net operators to: turn ANCD ON; enter SOI,

(5)

Receive, Broadcast, station ID, connect ANCD to

AUD/DATA connector of RT, and standby.

NCS presses [SEND] on ANCD; net operators

(6)

press [RCV] on ANCD; SOI data is transmitted.

Figure 4-18. SENDING SOI BY BROADCAST

Up to 16 stations may be polled during use of the Broadcast method.

SPECIAL FEATURE

All stations receive the transmission, but the NCS may select by identity

code those stations to be polled. At the end of the first transmission, the

ANCD determines which stations did not receive the SOI data and

rebroadcasts. After the third broadcast to polled stations, the ANCD

reports to the sending NCS any stations which still have not received

the SOI data. If the NCS does not desire to use this polling feature, it

can be shut off by entering "0."

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