1. APRS (Automatic Packet Radio Service)
What can you use it for other than position tracking?

2. Messaging Not stored, they either get through or they are lost
Most radios will repeat the message a number of times to increase the chance of it making it to the Internet / callsign
Send a message to Callsign-SSID ( ie. KD8LDX-9)

3. E-Mail One – Way (outbound, send only) Send a message to EMAIL
The first “word” should be the address you're writing to
Follow the address by a space
Then write your message

4. javAPRSSrvr Another Email Server with advanced features
Send a Message to -2
:me <= Shortcut to avoid having to write each time
:me L <= lists all shortcuts you have saved on -2 server
:me R <= removes the “me” shortcut
Also supports caching and to APRS (RF)
There are other javAPRSSrvr servers than just -2

5. Winlink 2000 Email Can be done both sending and receiving.
Send a message to WLNK-1
Message should only be the letter “H”
The reply is the command list
Complicated, requires Winlink 2000 computer and add-on software to Winlink 2000

6. WHO-IS Who is that new callsign that just popped up on the screen?
Send a message to WHO-IS (or WHO-15)
Put just the callsign you're interested in into the message text box
Add a lowercase f and a space before the callsign for full information on the call

7. CQSRVR Send a message to CQSRVR
Start the message with CQ (space)(name of event)
Example: CQ FD (used for Field Day)
Example: CQ CQ (used to solicit messages worldwide)
Anyone sending a message to CQ (name) after you will appear on your display
Does not work with tactical callsigns

8. ANSRVR Not used for soliciting contacts
Used for making announcements to a Global Group
Same format message as CQSRVR

9. Bulletins Good for Weather Statuses
Send a message to BLN(bulletin number from 0-9) followed by 5 filler spaces
Note there is no space between BLN and the number
APRS digipeaters should store the bulletin and repeat it a few times an hour for a few hours

10. Announcements Good for announcing Meetings, Hamfests, etc
Send a message to BLN(upper-case Letter) followed by 5 filler spaces
Note there is no space between BLN and the letter
APRS digipeaters should store the bulletin and retransmit it around once an hour over a day or two

11. Group Bulletins Good for announcements within groups
Same structure as a bulletin/announcement, with up to 5 characters instead of spaces as the group name.
Pad out the group name to 5 spaces with a space if group name is short
Group names should be agreed upon by the group and are setup on each member's equipment
APRS Digipeater should handle the message as either a bulletin or announcement

12. Weather Weather stations can be tied into APRS
Weather station report can contain:
Wind speed, direction and gust speed
Temperature
Barometric Pressure
Rainfall
Humidity
Other data collected

13. Telemetry How's the battery doing at the remote site?
User-defined, sent as 4 separate messages
A Parameter Name message.
A Unit/Label message.
An Equation Coefficients message.
A Bit Sense/Project Name message.
Lots of math can be done to keep these efficient

14. Objects Stuck in Traffic? Let your fellow hams know!
Note that some objects should be implemented by the sysop of the digipeater and not by home/mobile
Change the MYCALL in your mobile to TRAFFC
Change the icon to a star or a triangle
and beacon your position.
Add your callsign into the status text or make sure to change MYCALL back to your callsign-SSID before 10 minutes – stay legal!

15. Twitter and Facebook Join http://73s.com
Link your twitter and facebook accounts to 73s
Send a message to 73S
The server at 73s.com will republish your message as a status on the two social media outlets