TM  1-1520-240-10 3-2-22            CONTROLS/ INDICATOR FUNCTION An advisory alerts when a data message is received. Data can be transmitted or received in any mode (manu- al, ALE, or ECCM). Proce- dure to send/receive (recall) messages is the same for all modes, except in manual mode when ALE link is not established. Data Messages - Re- ceived Received messages are stored in MSG location 1. MSG 10 is the oldest mes- sage and is deleted from memory upon receipt of an incoming message. Received messages can be read and/ or forwarded, but not edited. A CHECK MSG advisor is displayed when data mes- sage received. To recall data messages perform the follow- ing: 1. Press MSG line-select switch to view message. If operator desires to check messages even though a CHECK MSG advisory was nor displayed, press MSG line–select switch, then RCVD line-select switch to view messages. NO MES- SAGES advisory appears if no messages exists. 2. Use the CURSOR up/ down arrow to view message one line at a time and left/ right arrows to move cursor to left margin. Use VALUE switches to page up or down. 3. To view additional messages, use CURSOR switches to position cursor under the MSG number the use. VALUE switches to scroll to next consecutive message number. 4. To retain messages in memory, press RTN line-se- lect switch. Press RTN line- select switch to return to op- erational CONTROLS/ INDICATOR FUNCTION 5. To delete messages, position cursor under mes- sage number to delete, press the DEL line-select switch until NO MESSAGES is dis- played mode. Data Messages - Transmit Press SEND line-select switch to transmit last se- lected address in ALE or ECCM mode, or to transmit message using current mode and frequency in manual mode. In ALE or ECCM modes advisories are dis- played during tuning, synch- ing and linking which is done automatically. SENDING DATA is displayed while message is transmitted. Program/Edit Data Messages Press MSG line–select switch to go to MESSAGE screen, then press PGRM line-select switch. NO MESSAGES is displayed if none exists. Use the CURSOR up/down ar- rows to position the cursor, then use VALUE switches to enter desired data (if a pre- viously programmed mes- sage is to be edited, use CURSOR an VALUE switches to obtain appropri- ate message and line as de- scribed earlier). To delete a character in cursor position and to shift remaining char- acters one position to the left, press DEL line-select switch. A built-in word dictionary is available (either default or filled). To access word dictio- nary, press WORD line-select switch to obtain INSERT screen. Use CURSOR and VALUE switches to scroll dic- tionary. Place cursor under desired word and press SELCT line-select switch to insert a blank and the se- lected word at cursor position of message edit screen or if no word found, press CANCL