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RTTY CONTESTING

PVRC CONTESTING SEMINAR. RTTY CONTESTING. (GETTING STARTED). 20 March 2005 Mike Sims, K4GMH. RTTY CONTESTING. TO BE COVERED Getting started on RTTY Getting started in RTTY Contesting Additions. GETTING STARTED ON RTTY - Equipment. Radio Capability Receiver

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RTTY CONTESTING

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  1. PVRC CONTESTING SEMINAR RTTY CONTESTING (GETTING STARTED) 20 March 2005 Mike Sims, K4GMH

  2. RTTY CONTESTING • TO BE COVERED • Getting started on RTTY • Getting started in RTTY Contesting • Additions

  3. GETTING STARTED ON RTTY - Equipment • Radio Capability • Receiver • External Speaker Connection, or • Independent Audio Output • Transmitter • Audio Frequency Shift Keying (AFSK) • Independent Audio Input (preferred), and/or • Microphone Input • Frequency Shift Keying (FSK) Input (not a necessity)

  4. GETTING STARTED ON RTTY - Equipment (cont.) • Computer • Sound Card • Line In (preferred), or • Microphone Input • AFSK • Line Out (preferred), or • Speaker Output • FSK • Serial Communication Port or USB to Serial Adapter • Software (RTTY) • Compatible with Computer

  5. GETTING STARTED ON RTTY - Equipment • Interconnection Between Receiver, Transmitter and Computer • Source of Information for Connecting Radios to Computers Can Be Found at: http://www.qsl.net/wm2u/interface.html and is titled “Understanding Soundcard Interfacing”

  6. RTTY CONTESTING - Getting Started • Equipment • Receive Filters (400 Hz - XTAL or DSP) • Computer Control (Computer Aided Tuning - CAT) • Radio w/ Readily Programmable Memories • Transmitter Able to Maintain Power Level During RTTY Transmission - 100 % Duty Cycle • SO2R Helps • RTTY S/W Compatible w/ Contest Logging S/W

  7. RTTY CONTESTING - Contests • Source of RTTY Contest Information • “RTTY Records and Rules” http://www.rttycontesting.com/

  8. RTTY CONTESTING - Contests • Choose the Contests • Your Capabilities • Equipment Capabilities • Operate in Contests - Even for Practice • Understand RTTY Exchange Vs Other Modes • Number of Participants in Different Contests

  9. RTTY CONTESTING - Contests • Operate in Contests - Even for Practice (cont.) • Learn to Tune-In a RTTY Signal in a Contest • Frequencies and Frequency Range • 80 meters: 3570 to 3615 KHz (JA 3520 to 3525 KHz) • 40 meters: 7030 to 7100 KHz • 20 meters: 14070 to 14120 KHz • 15 meters: 21070 to 21120 KHz • 10 meters: 28075 to 28120 KHz • No 160 meter and WARC Band RTTY Contesting

  10. RTTY CONTESTING - Contests • Operate in Contests - Even for Practice (cont.) • Club Score • PVRC 5 Million Points Eligibility • WAEDC RTTY • ARRL RTTY Roundup (Should BE!) • Other Reasons • RTTY World Ranking List

  11. RTTY CONTESTING - Contests • Operate in Contests - Even for Practice (cont.) • Other Reasons (cont.) • RTTY-Contest-Scene RTTY Top-Ten Trophy 2005 • Trophy to Top Ten in SO and MO

  12. RTTY CONTESTING - Additions • Tune Filters DSP Filters in the RTTY S/W • Pre-recorded .wav Files Under Various Conditions (see NCJ March/April 2005) • PathSim from AE4JY Web Site to Generate Files • Dual Soundcards or Other Dual RTTY Decoding • Use Same Signal Source • Output of Each Decoder is Displayed Separately

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