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- PRINT "This program takes a RAW PROCOMM download file from a GPS receiver"
- PRINT "in NMEA-0183 format and formats it to look like an APRS packet beacon"
- PRINT "It looks for the GGA and VTG sentences."
- REM For LORAN or other sentences GLL or RMC, you will have to rewrite
- REM Several lines below...
- PRINT
- INPUT "Enter file name of raw GPS data"; FI$
- INPUT "Enter name of OUTPUT file for APRS packet beacons"; FO$
- INPUT "Enter callsign to be used with that data"; CALL$
- INPUT "Enter two digit DAY of data"; Day
- INPUT "Enter symbol for character (Car >, Air ', Boat ~)"; Sym$
- IF LEN(Sym$) <> 1 THEN Sym$ = ">"
- LET CALL$ = LEFT$(CALL$ + " ", 10)
- OPEN FI$ FOR INPUT AS #1
- OPEN FO$ FOR OUTPUT AS #2
- DTG$ = MID$(DATE$, 4, 2) + LEFT$(TIME$, 2) + MID$(TIME$, 4, 2)
- DO WHILE NOT EOF(1)
- LINE INPUT #1, a$
- IF LEFT$(a$, 6) = "$GPGGA" AND MID$(a$, 36, 1) = "1" THEN
- lat$ = MID$(a$, 15, 7)
- lon$ = MID$(a$, 25, 8)
- EST = VAL(MID$(a$, 8, 4)) - 500
- IF EST < 0 THEN Tim = EST + 2400: Standby = 1 ELSE Tim = EST
- IF EST > 0 AND Standby = 1 THEN Standby = 0: Day = Day + 1
- UTC$ = RIGHT$("0" + MID$(STR$(Day), 2), 2) + RIGHT$("000" + MID$(STR$(Tim), 2), 4)
- Pos$ = "/" + lat$ + "N/" + lon$ + "W"
- END IF
- IF LEFT$(a$, 6) = "$GPVTG" THEN
- CSE$ = Sym$ + MID$(a$, 8, 3)
- SPD$ = "/" + MID$(a$, 26, 3)
- END IF
- Pkt$ = CALL$ + UTC$ + " @" + UTC$ + Pos$ + CSE$ + SPD$ + "/comments"
- PRINT #2, Pkt$
- LOOP
- CLOSE
- END
-
-