SUMMARY.txt  Version 6.7   

APRS works best at 9600 or 4800 baud.  See README.1st,  APRS.doc and HELP.txt.
See MAPS.txt on making APRS maps.  To aid APRS mobiles, try to use  145.79 MHz
if available in your area.  Look for bulletins to APRS @ USA. Share your disk.

APRS monitors the channel for BCNs, POSITS, OBJECT reports, and APRS messages.
It accumulates a list of all stations and all BEACONS and places all positions
on the map.  APRS sends data as UI frames, using a decaying period so that old
data fades away.  The packet period doubles after each transmission, resulting
in 10 the first hour, 2 the second and only 2 more all day! The ToGo box shows
time to next Xmission. On start-up with a newuser, APRS Queries a response frm
all stations.  To Query just one station, send it a message with '?APRS'.

Add objects on the map using the cursor and INPUT-ADD. Xmit all packets at any
time using the X key.   Only BEACON, APRS, CQ, ID, SKYWRN and MAIL packets are
processed unless you select OTHER. One line msgs can be sent to other stations
using the S key.  Use K to Kill incomming and E to Erase outgoing traffic.  DF
bearings (entered using INPUT-D) will show up as bright yellow lines.   For  a
quick demo, use the  FILE-LOAD and the FILE-REPLAY commands.  See  DEMOS.txt.
Small yellow crosses mark  map centers for maximum  initial viewing size.  You
may toggle on/off the automatic loGing of BEACONS and POSITS to disk.
***** all times are in DATE-TIME-GROUP format (DAY-HOUR-MIN (DDHHMM) ******
 
APRS stores new BCNS in the ALL list in sequence and maintains a LATEST list.
Posits are saved in the Plist. White objects are automatic, purple are manual
yellow are yours, blue are weather, cyan are dead reckoned and gray are old.
APRS not only plots mobiles with  GPS/LORAN interfaced to their TNC, but also
displays manual posits. The position of a vehicle entered by one station will
be displayed and dead reckoned on all screens until the next update.  You can
disable DR'ing if desired.  This tracking is ideal for public service events!

APRS is ideal for SKYWARN, DX and DFing.   WX stations show up blue with wind
speed/direction.   Other WX symbols can show severe WX conditions.  For auto-
matic WX reporting, use the ULTIMETER-II WXstation option.  See README\WX.txt.
APRS can display automatic Doppler DF bearings. See DF.txt.  APRS will map DX
spots from DX clusters.  See DX.txt.   Use J key to show Just one symbol type
at a time. APRS is ideal for DX if stations put GridSQ's or LAT/LONG in their
BTexts. Alt-G will set up APRS for reporting via MIR/SAREX. See SPACE.txt and
other ideas in README files!  For program validation info, hit F1(HELP)-V.

Use V to VIEW all packets or R to READ mail.  Use the OPS-COMM-TNC command to
use your TNC in dumb terminal mode, but with APRS processing disabled.

