Image Communication on Short Waves

Book Contents

1 Preface
2 Slow-scan television
2.1 The beginnings
2.2 Image transmission
3 Modern SSTV features
3.1 Signal modulation
3.1.1 Bandwidth
3.1.2 Modulation techniques of analog SSTV
3.2 Image resolution
3.3 Line speed
3.4 Black & white transmission
3.5 Colour transmission
3.5.1 Additive color model
3.5.2 Composite colour model
3.6 Synchronization
3.6.1 Horizontal synchronization
3.6.2 Vertical synchronization – VIS code
3.6.3 Additional synchronization data
4 Formats of slow-scan TV transmission
4.1 Black and white SSTV systems
4.1.1 Modes for digital converters
4.1.2 BW transmission with computer software
4.2 Color SSTV modes
4.2.1 Wraase SC-1
4.2.2 Robot color system
4.2.3 Synchronous system Martin
4.2.4 Scottie
4.2.4.1 Scottie DX – special mode for long distance transfers
4.2.5 Amiga Video Transceiver
4.2.6 Wraase SC-2
4.3 High resolution transmission
4.3.1 FAX
4.3.2 Pasokon TV
4.3.3 Acorn PD
4.4 Experimental modes
4.4.1 MSCAN TV
4.4.2 Kenwood FAST FM
4.4.3 Modes MP, MR, ML
4.4.4 Martin HQ
5 List of SSTV modes
6 SSTV equipment
6.1 Transceiver
6.2 Station equipment for visual communication
6.3 Little bit of history
6.3.1 SSTV monitor
6.3.2 Scanning devices
6.4 Early FSTV/SSTV converters
6.5 SUPERSCAN 2001
6.6 Tasco TSC-70P
6.7 Interactive Visual Communicator VC-H1
7 Computer operations
7.1 Hardware configuration
7.2 Sound card as a modem
7.2.1 Sound processing in PC
7.2.1.1 Sampling
7.2.2 Analog-to-digital conversion
7.2.3 Interface between TRX and PC
7.2.4 PTT control
7.2.5 Eliminate supply noise
7.3 Timing oscillator configuration
7.3.1 Transmit timing offset
7.4 SSTV tuning
7.5 Video digitalization
7.6 Software for Windows
7.6.1 List of programs
7.6.1.1 SSTV software
7.6.1.2 Digital mode software with SSTV support
7.6.1.3 Software for dedicated interfaces
8 Ham radio image operations
8.1 The reporting system
8.2 SSTV not only for hams
8.3 Diplomas and QSL cards
8.3.1 IVCA DX Achievement Award DXAA
8.3.2 DANISH DX SSTV AWARD
8.3.3 Russian SSTV Award
8.4 Contests
8.4.1 DARC SSTV Contest
8.4.2 Russian SSTV Contest
8.4.3 NVCG SSTV Contest
8.4.4 Danish SSTV Contest
8.4.5 JASTA SSTV Activity
8.4.6 Ukrainian SSTV Contest
8.5 SSTV repeaters
8.5.1 HF and 50 MHz repeater list
8.6 Ham radio satellites and space broadcast
8.6.1 SSTV from Mir station
8.6.2 SuitSat
8.6.3 Amateur Radio on the International Space Station
9 Introduction to digital slow-scan TV
9.1 Digital communication basics
9.2 Error detection and correction
9.2.1 Cyclic redundancy check
9.2.2 Hamming code
9.2.3 Reed-Solomon code
9.3 Data compression
9.3.1 Information entropy
9.3.2 Huffman coding
9.3.3 Lossless data compression
9.3.3.1 Portable Network Graphics
9.3.4 Lossy compression
9.3.4.1 JPEG compression
9.3.4.2 JPEG2000
9.3.4.3 Lossy versus lossless image compression – conclusion
10 DSSTV communication systems
10.1 Redundant Data File Transfer
10.1.1 RDFT operations
10.2 HamDRM system
10.2.1 Comparison of HamDRM and RDFT
10.2.2 Quadrature amplitude modulation — QAM
10.2.3 Orthogonal frequency-division multiplexing — OFDM
10.2.3 OFDM transfer
10.3 DSSTV software selection
10.4 Making QSO
10.5 Waterfall images
11 Facsimile – Radiofax
11.1 The history of image transmission
11.2 The fax mode
11.2.1 Image transmission
11.2.2 The reception
11.2.2.1 Facsimile transmission modes
11.3 Professional stations
11.4 Satellite imagery retransmission
11.4.1 Meteorologic satellites
11.4.2 Essential Services
11.5 Hamradio facsimile operations
11.5.1 EU-FAX-Diplom
11.5.2 The International HF-FAX-Contest by DARC
11.6 International facsimile standard recommendation
12 List of professional stations
12.1 Europe
12.1.1 Athens, Greece
12.1.2 Hamburg/Pinnenberg, Germany
12.1.3 Roma, Italy
12.1.4 Moscow, Russia
12.1.5 Murmansk, Russia
12.1.6 Northwood, The United Kingdom
12.2 Africa
12.2.1 Cape Naval, South Africa
12.3 Asia
12.3.1 Beijing, China
12.3.2 Beijing, China
12.3.3 Shanghai, China
12.3.4 New Delhi, India
12.3.5 Tokyo, Japan
12.3.6 Pevek, Chukotka peninsula
12.3.7 Taipei, China
12.3.8 Seoul, Republic of Korea
12.3.9 Bangkok, Thailand
12.3.10 Kyodo News Agency, Japan
12.3.11 Kyodo News Agency, Singapur
12.3.12 Northwood, Persian Gulf Base
12.4 South America
12.4.1 Rio de Janeiro, Brasil
12.4.2 Valparaiso Playa Ancha, Chile
12.5 North America
12.5.1 Halifax, Nova Scotia Canada
12.5.2 Iqaluit, NWT Canada
12.5.3 Resolute, NWT Canada
12.5.4 Sydney, Nova Scotia Canada
12.5.5 Kodiak, Alaska USA
12.5.6 Pt. Reyes, California USA
12.5.7 New Orleans, Louisiana USA
12.5.8 Boston, Massachusetts USA
12.5.9 Inuvik, Canada
12.6 Australia and Oceania
12.6.1 Charleville, Austrálie
12.6.2 Wiluna, Austrálie
12.6.3 Wellington, New Zealand
12.6.4 Honolulu, Hawaii USA
12.7 List by frequency
13 Computer image processing
13.1 Image resizing
13.2 Color adjustment
13.3 Filters
13.3.1 Convolution matrix
13.3.2 Noise reduction
13.3.2.1 Spatial average filtering
13.3.2.2 Median filter
13.3.3 Sharpening