370 PRINT #1, "AT R C1 H2 D": FOR A = 1 TO 2500 : NEXT : PRINT #1, "This is a test of the Communications Port. This is sent at 300 Baud, ASCII, over an amateur radio transmitter. It will then unkey the transmitter and wait for a return carrier and signa
380 FOR A = 1 TO 6500 : NEXT : PRINT #1, "+++"; : FOR A = 1 TO 2500 : NEXT : PRINT #1, "AT H"
390 GOSUB 1000 : FOR A = 1 TO 250 : NEXT : GOSUB 1000 : FOR A = 1 TO 250 : NEXT : GOSUB 1000
400 LOCATE 25,25 : COLOR 8,7 : PRINT "Press space bar to continue...";: COLOR 5,0