1. Amateur Radio Digital Communication Modes
Aroostook Amateur Radio Association
October 6, 2011

2. An OVERVIEW
Light on Definitions
No Acronyms
FSK AFSK PSK MPSK, etc

3. Advantages Bandwidth Efficiency Power Efficiency
Information Efficiency

4. Voice Modes

5. AM

6. AM vs SSB

7. Digital Modes Minimize bandwidth Minimize power requirements
Minimize interference
Adjacent channel
Atmospheric
Eliminate voice related miscommunication (accent, etc)

8. Digital Modes

9. Digital Modes CW-Continuous Wave
Radio transmits and receives intelligence.
Requires physical and mental input from operator to encode and decode.

10. Digital Modes RTTY-Radio TeleType

11. Digital Modes RTTY-Radio TeleType
RTTY Terminal Required
Mechanically translates received signal into a format that is usable by the operator.

12. Digital Modes Packet

13. Digital Modes Packet TNC-Terminal Node Controller
TAPR-Tucson Amateur Packet Radio
AX.25
HF 300 baud
VHF baud

14. Digital Modes APRS (Packet) Automatic Packet Reporting System

15. Digital Modes Sound Card Modes

16. Software Ham Radio Deluxe Digipan MMTTY FLDIGI JT65HF Meinberg
Dimention 4

17. Modes Amtor Pactor G-Tor (telegraph over radio=TOR) Clover RTTY
PSK31, PSK63, etc
Packet
Hellschreiber - PSK-Hell, Feld Hell, etc

18. Modes
Throb
MFSK16
JT65A, JT65HF
Olivia

19. PSK31

20. JT65HF

21. Information APRS

22. Information RTTY http://www.aa5au.com/rtty.html

23. Information JT65 http://www.dxzone.com/catalog/Operating_Modes/JT65/

24. Information-PSK

25. Information-Miscellaneous

26. Software Digipan: http://wb8nut.com/resources/digipan20.exe
Ham Radio Deluxe (DM780):
JT65HF:
RTTY:
Fldigi: