Send Data Via RS-232 Mode (Special Operator Task 10)

11-5820-890-10-8

5.6b.

Send Data Via RS-232 Mode (Special Operator Task 10)

STEP

ACTION

RESULT

Ensure computer has required

SIP/ASIP radio will except any program

commercial communication program

offering "Xmodem", a widely used file

loaded*

transfer protocol

Connect cable from computer to

This data method does not require

AUD/DATA connector on the SIP/ASIP

SIP/ASIP VAA functions

Also, coordinate data rate to be used if

By voice, alert receiving station that data

not designated by comm program or

message is to be sent via RS-232

unit SOP**

See*** below for steps required to

Select EDM rate to be used for RS-232

select EDM data rate

transmission

Using computer, prepare data message

N/A

to be sent, or load your computer with

data

Check net to ensure that traffic is not

Need clear net to ensure that data

message goes through****

heard or noted by signal display

Follow communication program

Control is from computer: SIP/ASIP

radio serves as data communications

procedures to send and receive data

carrier

messages

Both sending and receiving stations must use the same or compatible "Xmodem"

communication program.

* * Any one of the four enhanced data rates are used for RS-232 traffic: 1200N, 2400N, 4800N,

and 9600N (BPS). Selection is based primarily upon the distance between stations. For shorter

ranges, fast rates work well. For longer ranges, slower data rates perform better. If data is sent

through an RXMT site, RXMT radios must be set to the same EDM data rate as the outstations

* * * Select data rate using PC data transfer software (i.e. Procomm), connect PC to RT via data

cable. Select "RS-232" on RT; press ENTER on PC; PC should indicate the RT connected at xxxx,

the PC rate you selected. If a problem is encountered repeat above steps.

**** If voice mode has priority of use in your net, it may be necessary to wait for a quiet period to

send data messages. (Pressing PTT will not interupt data traffic. Doing so merely stops the

receipt of traffic at your radio).

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