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- SSTV Info - John Langner WB2OSZ
-
- The main focus of this file is on SSTV because information on this mode
- is so scarce. I keep trying to ignore WEFAX and ATV because they are
- even larger topics already well covered by various handbooks and magazines.
- However some WEFAX and ATV information sneaks in when it is closely related
- to SSTV, for instance some software that does both SSTV and WEFAX.
-
- I've tried to keep everything objective and resisted the temptation to
- add comments (mine or second hand) about the quality of the products.
- Someone flamed me for saying it was "sort of possible" to do SSTV
- with a certain multi-mode TNC. So all I'll say is get on the air and
- ask people what they are using how they like it.
-
- Detailed specifications and prices have been avoided because that could
- be considered advertising and this is going over the Internet and other
- places where advertising is not welcome.
-
- Please send additions and corrections to johnl@avs.com and I'll distribute
- a new version occasionally.
-
- A fairly recent version will always be available in
- /pub/ham-radio/sstv_wefax_info at ftp.cs.buffalo.edu.
-
- Let me know where you saw this file; I'd be interested in knowing how
- far it gets propagated.
-
-
- Version of mid October 1992.
-
-
- Background
- ----------
-
- There are several different ways to send images over ham radio:
-
- 1. RTTY art - Remember when people were amused by making pictures
- out of characters?
-
- 2. FSTV (Fast Scan TV - Also called ATV) - Similar to broadcast TV.
- Full motion, color, sound, etc. Restricted to UHF and up because
- a signal requires several MHz of bandwidth.
-
- 3. WEFAX (weather facsimile) - Very high resolution gray scale images
- sent by audio tones over a period of minutes.
-
- 4. SSTV (Slow Scan TV) - Low to medium resolution still images sent
- through audio channels over a period of several seconds to a few
- minutes. Mostly color these days.
-
- 5. Digital SSTV - I haven't seen any proposals yet. You could always
- compress images using an international standard, such as JPEG, and
- send the files over existing packet radio networks.
-
-
- Transmission Modes
- ------------------
-
- The original 8 second SSTV transmission mode (around 1958) had the following
- characteristics:
-
- black = 1500 Hz
- white = 2300 Hz
- gray levels in between
- 120 scan lines
- 15 lines per second
- 5 mS of 1200 Hz for horizontal sync
- 30 mS of 1200 Hz for vertical sync
-
- Since that time many more modes have been invented, sometimes to add new
- capabilities, sometimes the result of Not Invented Here syndrome.
-
- The major groups are:
-
- Robot - Introduced with the Robot scan converters (California).
- Wraase - Introduced with the Wraase scan converters (Germany).
- Martin - Developed by Martin Emmerson (England).
- First available as replacement PROMs for Robot 1200C.
- Scottie - Developed by Eddie Murphy (Scotland).
- First available as replacement PROMs for Robot 1200C.
- AVT - Developed by Ben Blish/Williams (Montana).
- First available in the AVT system.
-
- The Robot, Wraase, Martin, and Scottie modes are all closely related.
- They all use the tones above for black, white, and gray levels.
- They all have 1200 Hz horizontal sync, although some Martin and Scottie
- implementations rely on accurate crystal oscillators and ignore the
- horizontal sync once synchronized. Color is generally transmitted by sending
- each scan line 3 times, once each for red, green, and blue components.
- Robot is different from the rest in that it encodes colors with
- luminance (Y) and chrominance (R-Y and B-Y) instead of R,G,B.
-
- Each of these modes has a few different speeds, usually providing 120 or 240
- scan lines and varying degrees of horizontal resolution. (Actually some send
- 128 or 256 lines but the top 8 or 16 are always a fixed gray scale,
- leaving 120 or 240 usable lines.)
-
- The Robot modes have a much longer vertical sync (called VIS) containing
- 7 bits of information and a parity bit. This identifies the format of the
- following image so manual selection is not required on systems that
- recognize it. Everyone else has adopted the Robot VIS coding and assigned
- themselves unused codes in the original specification.
-
- The AVT mode is radically different from the rest. It has no horizontal
- sync at all; very accurate crystal oscillators are required to prevent
- slanted pictures. After the usual Robot VIS code, it has a digital header
- with 32 repetitions of the transmission mode, and a sequence number. It is
- only necessary to receive one of the 32 groups correctly to achieve
- synchronization. For more details see the AVT article in CQ-TV mentioned
- in the bibliography.
-
-
- Frequencies
- -----------
-
- By convention, SSTV operation is generally found on only a few frequencies.
- >From a brochure from the International Visual Communication Association:
-
- 3.845
- 7.171
- 14.230
- 14.233
- 21.340
- 28.680
- 144.5
-
-
- Nets
- ----
-
- Two different Slow Scan nets meet on Saturdays at 15:00 and 18:00 UTC
- on 14.230 MHz.
-
-
- Scan Converters
- ---------------
-
- A couple years ago anyone who was serious about SSTV had a Robot 1200C.
-
- It is a complete system dedicated to SSTV. Just connect it to
- - Color TV camera (either NTSC or PAL).
- - Color TV set or monitor.
- - Speaker and Mic connectors of a transceiver.
- - Tape recorder for picture storage.
-
- It has 4 black & white modes (one compatible with original 8 second) and
- 4 color modes with different transmission times and resolutions.
-
- It displays images with 256 x 240 resolution with 18 bits per pixel.
- That's more than 250,000 colors.
-
- Robot Research
- 5636 Ruffin Road
- San Diego, CA 61927
-
- It also has a parallel port for connection to a home computer. Several
- different programs for transferring images to/from the 1200C and for
- performing various other functions are available.
- (Combined list from Roland's column, IVCA brochure, etc.)
-
- Hi-Res (for IBM PC)
- Tom Jenkins N9AMR
- 5968 S. Keystone Ave.
- Indianapolis, IN 46227
-
- SCAN, Version 6.0 (for IBM PC)
- Bert Beyt W5ZR
- 301 Tampico St.
- New Iberia, LA 70560
-
- SSTV by KC5VC (for IBM PC)
- Garnet Bebermeyer WB0UNB
- 15 Almeda Ct.
- Fenton, MO 63026
-
- IMAGE (for IBM PC)
- Dick Isely WD9GIG
- 736 Fellow St.
- St. Charles, IL 60174
-
- name? (for Amiga)
- Tom Hibben KB9MC
- Mule Hollow Road
- Box 188
- DeSoto, WI 54624
-
- Replacement PROMs are available to give the 1200C other transmission modes
- such as Wraase, Martin, Scottie, and AVT. PROMs available from:
-
- Martin Emmerson G3OQD
- 6 Mount Hurst Rd.
- Hayes, Bromley
- Kent, England
-
- Robot Research has lost interest in the 1200C. It hasn't been enhanced
- or advertised for years. The last I heard it is still available from P.C.
- Electronics but they never mention it in their full page ads (need to dig
- up address...).
-
- Three clones of the 1200C are available:
-
- Ribbit
- Brian Summers VE3DUO
- 336 Goodram Drive
- Burlington, Ontario
- Canada L7L 2K1
-
- LM9000
- John Wilson VK3LM
- R.M.B. 4201A
- Tallangatta Valley 3701
- Victoria Australia
-
- NS-88
- Muneki Yamafuzi JF3GOH
- P.O. Box 670
- Osaka Japan 531
-
- I think the LM9000 is available only as blank PC boards. One magazine
- article warned readers not to be too hasty about purchasing boards because
- the other parts required are hard to find and more expensive than you
- would expect. But if you do build one it is compatible with the 1200C and
- can use the Martin Emmerson PROMs.
-
- The Wraase SC-1 and SC-2 scan converters are available from Germany.
- I know nothing at all about their capabilities. One magazine mentioned that
- they existed but went into no additional detail.
-
- Volker Wraase Elektronik
- Kronsberg 10
- D-2300 Altenholz/Kiel
- Germany
- Tel.: 0431/32528
-
- A new scan converter was just announced recently, the SUPERSCAN 2001. It
- is similar to the 1200C but a more modern design with several improvements.
- It can hold four 256x256 images with about 250,000 colors. New features
- include mouse support, titling without use of a separate computer, both
- parallel and serial interfaces, and a CMOS RAM with battery backup to
- save parameters.
-
- Now (or soon) available are:
- * Semi-kit with 3 printed circuit boards, an EPROM developed
- by Martin Emmerson, and instructions.
- * High stability crystal oscillator.
- * Cabinet.
- * Interface card for IBM PC.
-
- The builder must gather up all the other components which go on the boards.
-
- Jad Bashour
- 55 Hampton Road
- London N15 3SX
- England
- Tel. 011 44 81 (809 3991)
-
-
- Home Computers
- --------------
-
- Now that most home computers have plenty of memory and acceptable color
- graphics, the most cost effective method is to use a computer with a
- suitable interface and software.
-
- Note that if you want to send a picture of anything real, you will also
- need a frame grabber which will add a few hundred more $ to the total
- system cost.
-
-
- Amiga
- -----
-
- The AVT system has become quite popular during the last couple years for
- both SSTV and WEFAX. It is composed of an interface that attaches to the
- parallel port and software.
-
- It has images with up to 4096 colors, all the popular transmission modes,
- builtin graphics editor, text generation, image processing techniques to
- clean up noisy pictures, and loads of other features. Product review
- in July 1989 issue of 73 Amateur Radio.
-
- AVT Master
- AEA
- P.O. Box C2160
- 2006 196th St. S.W.
- Lynnwood, WA 98036-0918
-
-
- Atari ST
- --------
-
- Color SSTV, WEFAX, and other ham radio software are available from these
- user group program libraries:
-
- Atari Microcomputer Network
- John Adams KC5FW
- 17106 Happy Hollow
- San Antonio, TX 78232
-
- ASTUR (Atari ST Users on Radio)
- GEERAERT Michel
- W. Elsschotlann 21
- B-8460 Koksijde
- Belgium
-
- The WEFAX program requires a very simple interface containing an XR-2211.
-
- The "sSTv" program can use two different interfaces.
- In the low cost configuration, the internal sound generator is used for
- transmit and a simple two chip interface (total cost about $7 including
- perf board, connectors, etc.) is used for receive.
-
- Much better results can be obtained with an interface from:
-
- A&A Engineering
- 2521 W. LaPalma, Unit K
- Anaheim CA 92801
- (714) 952-2114
-
- See 73 Magazine, December 89 and January 90, for more details.
-
- The latest version of the software has all the popular modes (Robot,
- Wraase, Martin, Scottie, AVT), a graphical user interface, on-screen
- tuning indicator, and full screen images with dithering to give the
- appearance of hundreds of colors when viewed from a distance.
-
- Another Atari SSTV system is available from:
-
- Robert Gendron VE2BNC
- 315 6025 Croissant Brodeur
- Brossard, Longueuil
- Quebec J4Z 1Y8
- Canada
-
-
- IBM PC
- ------
-
- Several WEFAX systems are available:
-
- PC HF Facsimilie 4.0
- PC GOES/WEFAX
- Software Systems Consulting
- 150 Avenida Cabrillo, "C"
- San Clemente, CA 92672
-
- MULTIFAX
- Schwittek WEFAX Systems
- David E. Schittek NW2T
- 1659 Waterford Road
- Walworth, NY 14568
-
- AEA-FAX
- AEA (address above)
-
- A & A Engineering
- (address above)
-
- There are surely others. I found these by flipping through a couple
- recent magazines. My current main interest is SSTV so I'm not familiar with
- the features of WEFAX systems.
-
- Several months ago, I started this paragraph with "The SSTV picture is
- dimmer" because there was only a limited B&W system available.
- The situation has changed rapidly. There are now three PC-based Color
- SSTV systems available and rumors of at least one more on the way.
- In order of appearance:
-
- ViewPort VGA (developed by KA2PYJ)
- A & A Engineering
- (address above)
-
- PC SSTV 5.0
- Software Systems Consulting
- (address above)
-
- Pasokon TV
- John Langner WB2OSZ
- 115 Stedman St. #F
- Chelmsford, MA 01824-1823
- (please send SASE for details)
-
- All systems use much different interfaces: a small module that plugs into
- the serial port, a more substantial interface that attaches to the printer
- port, and a board that fits into an expansion slot inside the computer.
-
- All send/receive a variety of modes, read/write popular image file formats,
- and require a VGA. But there the similarities end. They vary quite a bit
- in number of transmission modes supported, maximum number of colors displayed,
- ease of setup, and other features.
-
- To avoid any unpleasant surprizes, tune into 14.230, and ask people about
- their experiences with the different systems before making any decisions
- about a purchase.
-
-
- Mac
- ---
-
- Many people have asked many times and there doesn't seem to be anything
- available.
-
-
- Others
- ------
-
- There have been SSTV implementations for other machines such as the Radio
- Shack COCO and the old 8 bit Ataris. (See Bibliography, below.) CQ-TV also
- mentions SSTV for machines we never heard of in the USA.
-
-
- Multi-mode TNCs
- ---------------
-
- It is possible to do color SSTV with the MFJ-1278, a computer, and suitable
- software.
-
- John (??? callbook says Robert E.) Tuttle K1UTI
- Penny Ln
- Barrington, NH 03825
-
-
- Software Avaiable by FTP over Internet
- --------------------------------------
-
- If you don't have Internet access, consult the FAQ list for information
- on how to get these files by e-mail.
-
-
- SSTVFAX2.ZIP Hams: Send and Receive SSTV and FAX pictures
- JVFAX50.ZIP very good program to encode and decode FAX/SSTV/ASCII..
- WEFAX.ARC ?
- NEWWEFAX.ARC ?
- AUTOFAX.LZH ?
- FAX40.LZH ?
-
-
- (Most of the jvfax50.zip locations from VE2IMS. Others from archie.)
-
-
- Host capella.eetech.mcgill.ca
-
- Location: /wuarchive/mirrors/msdos/hamradio
- FILE -rw-r--r-- 407934 Jun 28 20:00 jvfax50.zip
- Location: /wuarchive/mirrors3/garbo.uwasa.fi/ham
- FILE -r--r--r-- 408165 Jun 24 13:41 jvfax50.zip
-
- Host garbo.uwasa.fi
-
- Location: /pc/ham
- FILE -rw-rw-r-- 408165 Jun 24 17:41 jvfax50.zip
-
- Host isfs.kuis.kyoto-u.ac.jp
-
- Location: /mirrors/simtel20.msdos/hamradio
- FILE -rw-rw-r-- 407934 Jun 29 05:00 jvfax50.zip
-
- Host nic.switch.ch
-
- Location: /mirror/msdos/hamradio
- FILE -rw-rw-r-- 407934 Jun 28 22:00 jvfax50.zip
-
- Host pc.usl.edu
-
- Location: /pub/ham
- FILE -rw-r--r-- 407934 Jul 2 11:24 jvfax50.zip
-
- Host plaza.aarnet.edu.au
-
- Location: /micros/pc/garbo/pc/ham
- FILE -r--r--r-- 408165 Jun 24 17:41 jvfax50.zip
- Location: /micros/pc/oak/hamradio
- FILE -r--r--r-- 407934 Jun 28 20:00 jvfax50.zip
- Location: /micros/pc/simtel-20/hamradio
- FILE -r--r--r-- 407934 Jun 28 20:00 jvfax50.zip
-
- Host rigel.acs.oakland.edu
-
- Location: /pub/msdos/hamradio
- FILE -rw-r--r-- 407934 Jun 28 20:00 jvfax50.zip
-
- Host src.doc.ic.ac.uk
-
- Location: /ibmpc/wsmr-simtel20.army.mil/hamradio
- FILE -r--r--r-- 407934 Jun 28 21:00 jvfax50.zip
-
- Host sun0.urz.uni-heidelberg.de
-
- Location: /pub/msdos/simtel/hamradio
- FILE -rw-rw-r-- 407934 Jun 28 20:00 jvfax50.zip
-
- Host swdsrv.edvz.univie.ac.at
-
- Location: /pc/dos/hamradio
- FILE -rw-r--r-- 407934 Jun 28 19:00 jvfax50.zip
-
- Host wuarchive.wustl.edu
-
- Location: /mirrors/msdos/hamradio
- FILE -rw-r--r-- 407934 Jun 28 19:00 jvfax50.zip
- Location: /mirrors3/garbo.uwasa.fi/ham
- FILE -r--r--r-- 408165 Jun 24 12:41 jvfax50.zip
-
-
- Host garfield.catt.ncsu.edu (152.1.43.23)
- Last updated 06:01 9 Jul 1992
-
- Location: /pub/hamradio/programs
- FILE rw-r--r-- 28323 Jun 18 12:00 sstvfax2.zip
-
- Host wuarchive.wustl.edu (128.252.135.4)
- Last updated 04:16 10 May 1992
-
- Location: /mirrors/msdos/hamradio
- FILE rw-rw-r-- 28323 Apr 30 19:00 sstvfax2.zip
-
-
- Host gdr.bath.ac.uk (138.38.32.1)
- Last updated 07:03 9 Jul 1992
-
- Location: /pdsoft/msdos/hamradio
- FILE rw-r--r-- 35968 Sep 7 1987 wefax.arc
-
- Host garfield.catt.ncsu.edu (152.1.43.23)
- Last updated 06:01 9 Jul 1992
-
- Location: /pub/hamradio/programs
- FILE rw-r--r-- 35968 Jun 18 12:01 wefax.arc
-
- Host caticsuf.cati.csufresno.edu (129.8.100.15)
- Last updated 03:48 22 Jun 1992
-
- Location: /pub/ham-radio/radio/progs
- FILE rw-r--r-- 35968 Nov 12 1991 wefax.arc
-
- Host wuarchive.wustl.edu (128.252.135.4)
- Last updated 04:16 10 May 1992
-
- Location: /mirrors/msdos/hamradio
- FILE rw-rw-r-- 35968 Sep 6 1987 wefax.arc
-
- Host ucsd.edu (128.54.16.1)
- Last updated 03:39 8 May 1992
-
- Location: /hamradio/dsp
- FILE r--r--r-- 41110 Aug 10 1988 wefax.arc
-
- Host sun0.urz.uni-heidelberg.de (129.206.100.126)
- Last updated 17:54 5 May 1992
-
- Location: /pub/msdos/simtel/hamradio
- FILE rw-rw-r-- 35968 Sep 6 1987 wefax.arc
-
- Host src.doc.ic.ac.uk (146.169.2.1)
- Last updated 17:24 5 May 1992
-
- Location: /ibmpc/wsmr-simtel20.army.mil/hamradio
- FILE r-xr-xr-x 35968 Sep 6 1987 wefax.arc
-
- Host rigel.acs.oakland.edu (141.210.10.117)
- Last updated 16:46 5 May 1992
-
- Location: /pub/msdos/hamradio
- FILE rw-r--r-- 35968 Sep 6 1987 wefax.arc
-
- Host plaza.aarnet.edu.au (139.130.4.6)
- Last updated 16:16 5 May 1992
-
- Location: /micros/pc/simtel-20/hamradio
- FILE rw-r--r-- 35968 Sep 6 1987 wefax.arc
- Location: /micros/pc/oak/hamradio
- FILE rw-r--r-- 35968 Sep 6 1987 wefax.arc
-
- Host nic.funet.fi (128.214.6.100)
- Last updated 15:36 5 May 1992
-
- Location: /pub/ham/dsp/dsp4
- FILE rw-rw-r-- 41110 Mar 1 1990 wefax.arc
-
- Host ucsd.edu (128.54.16.1)
- Last updated 03:39 8 May 1992
-
- Location: /hamradio/dsp
- FILE r--r--r-- 70742 Aug 10 1988 newwefax.arc
-
- Host nic.funet.fi (128.214.6.100)
- Last updated 15:36 5 May 1992
-
- Location: /pub/ham/dsp/dsp12
- FILE rw-rw-r-- 70742 Mar 1 1990 newwefax.arc
- Location: /pub/msdos/communications/hamradio
- FILE rw-r--r-- 10500 Sep 21 1990 autofax.lzh
- FILE rw-r--r-- 202198 Jan 16 09:22 fax40.lzh
-
- Host garfield.catt.ncsu.edu (152.1.43.23)
- Last updated 06:01 9 Jul 1992
-
- Location: /pub/hamradio/programs
- FILE rw-r--r-- 208740 Jun 18 11:56 fax40.zip
-
- Host wuarchive.wustl.edu (128.252.135.4)
- Last updated 04:16 10 May 1992
-
- Location: /mirrors/msdos/hamradio
- FILE rw-rw-r-- 208740 Jan 10 18:00 fax40.zip
-
- Host sun0.urz.uni-heidelberg.de (129.206.100.126)
- Last updated 17:54 5 May 1992
-
- Location: /pub/msdos/simtel/hamradio
- FILE rw-rw-r-- 208768 Jan 11 12:00 fax40.zip
-
- Host src.doc.ic.ac.uk (146.169.2.1)
- Last updated 17:24 5 May 1992
-
- Location: /ibmpc/wsmr-simtel20.army.mil/hamradio
- FILE r--r--r-- 208740 Jan 10 19:00 fax40.zip
-
- Host rigel.acs.oakland.edu (141.210.10.117)
- Last updated 16:46 5 May 1992
-
- Location: /pub/msdos/hamradio
- FILE rw-r--r-- 208740 Jan 10 19:00 fax40.zip
-
- Host plaza.aarnet.edu.au (139.130.4.6)
- Last updated 16:16 5 May 1992
-
- Location: /micros/pc/simtel-20/hamradio
- FILE rw-r--r-- 208740 Jan 10 19:00 fax40.zip
- Location: /micros/pc/oak/hamradio
- FILE rw-r--r-- 208740 Jan 10 19:00 fax40.zip
-
- Host nic.funet.fi (128.214.6.100)
- Last updated 15:36 5 May 1992
-
- Location: /pub/msdos/communications/hamradio
- FILE rw-r--r-- 208740 Jan 16 07:36 fax40.zip
- FILE rw-r--r-- 30628 Sep 21 1990 wefax.lzh
-
- Host garfield.catt.ncsu.edu (152.1.43.23)
- Last updated 06:01 9 Jul 1992
-
- Location: /pub/hamradio/programs
- FILE rw-r--r-- 28323 Jun 18 12:00 sstvfax2.zip
-
- Host wuarchive.wustl.edu (128.252.135.4)
- Last updated 04:16 10 May 1992
-
- Location: /mirrors/msdos/hamradio
- FILE rw-rw-r-- 28323 Apr 30 19:00 sstvfax2.zip
-
- Host garbo.uwasa.fi (128.214.87.1)
- Last updated 05:54 9 Jul 1992
-
- Location: /pc/ham
- FILE rw-rw-r-- 408165 Jun 24 17:41 jvfax50.zip
-
-
- Software Available from phone BBSs
- ----------------------------------
-
- ???
-
-
- Publications
- ------------
-
- Modern information on SSTV is very scarce. The only SSTV handbook, that I
- know about, was written by Don Miller W9NTP and Ralph Taggart WB8DQT about
- 15 years ago.
-
- The British Amateur Television Club has a book, The Slow Scan Companion (?),
- but it's not really a handbook with organized chapters on different topics.
- It's more like a random collection of magazine articles. It is missing
- very fundamental information such as how color images are conveyed by
- audio tones.
-
- There are a few magazines that specialize in Amateur Television. These are
- mostly oriented toward fast scan TV but SSTV and WEFAX are mentioned
- occasionally.
-
- (Regular column on 'Satellites, Facsimile & Slow-Scan TV
- Imaging' by Fred Sharp W8ASF)
- The SPEC-COM Journal
- P.O. Box 1002
- Dubuque, IA 52004-1002
-
- (Frequent column 'SSTV Revisited' by Roland Humphries G4UKL)
- CQ-TV
- British Amateur Television Club
- Dave Lawton G0ANO
- Grenehurst, Pinewood Road
- High Wycombe, Bucks HP12 4DD
- England
- (U.S. subscriptions may be obtained by making payment
- through Wyman Research or ATVQ.)
-
- Amateur Television Quarterly (ATVQ)
- 1545 Lee St.
- Suite 73
- Des Plaines, IL 60018
-
- Booklets of old ATVQ and A5 articles are available from:
-
- ESF Copy Service
- 4011 Clearview Dr.
- Cedar Falls, IA 50613
-
- A newsletter devoted to SSTV:
-
- VISION
- International Visual Communication Association (IVCA)
- 101 Oenoke Lane
- New Canaan, CT 06840
-
- The 1993 ARRL Radio Amateur's Handbook will have a completely new and
- expanded section on SSTV. It's not out yet because this is the middle
- of 1992.
-
-
- Bibliography
- ------------
-
- It will take some time to track down more old articles for this section.
- But it won't take long to type them in because there aren't many!
-
- I've purposely excluded the scores of articles describing modifications
- to the Robot 400 (an old Black & White only system) because they're all
- in the booklets from ESF and of little interest to someone without a
- Robot 400.
-
-
- Abrams, Clay K6AEP & Taggart, Ralph WB8DQT, "Color Computer SSTV", 73,
- Nov 84, p. 10 & Dec 84, p. 18.
-
- Cameroni, Giuseppe I2CAB & Morellato, Giancarla I2AED (translated by
- Jim Grubbs K9EI), "get on SSTV - with the C-64", ham radio, Oct. 86, p 43.
-
- Churchfield, Terry K3HKR, "Amiga AVT System", 73 Amateur Radio, Jul 89, p. 29.
-
- Goodman, Dick WA3USG, "SSTV with the Robot 1200C Scan Converter and the
- Martin Emmerson EPROM Version 4.0", 73 Amateur Radio Today, Jul 91, p. 46.
-
- Langner, John WB2OSZ, "Color SSTV for the Atari ST", 73 Amateur Radio,
- Dec 89, p. 38, Jan 90, p. 41.
-
- Langner, John WB2OSZ, "SSTV - The AVT System Secrets Revealed", CQ-TV 149
- (Feb 90), p. 79.
-
- Montalbano, John KA2PYJ, "The ViewPort VGA Color SSTV System", 73, Aug 92,
- p. 8.
-
- Rogers, Buck K4ABT (???) - I heard that the August (?) 92 issue of CQ had
- a product review of PC SSTV 5.0 but the next issue was already out by the
- time I had a chance to make a trip to a big book store.
-
- Schick, Martin K. KA4IWG, "Color SSTV and the Atari Computer", QST, Aug 85.
-
- Taggart. Dr. Ralph E. WB8DQT, "The Romscanner", QST, Mar 86. p. 21.
-
-
- ARRL Bibliography on Image Communications
- -----------------------------------------
-
- The following was provided by Ed Hare at ARRL:
-
-
- The ARRL Handbook and the Operating Manual each have a chapter devoted to
- amateur television. These books are available from ARRL Headquarters or
- your local amateur dealer.
-
- There are two periodicals devoted to amateur television:
-
- ATV Quarterly
- 1545 Lee St
- Suite 73
- Des Plaines IL 60018
-
- SPEC-COM
- POB 1002
- Dubuque IA 52004-1002
-
- Contact these publishers directly for susbscription information.
-
- ARRL Bibliography on Image Communications:
-
- 1925
- May Visible Radio Communication p. 15
- (Wilkerson) 4 pages
-
- July Television Arrives p. 9
- (Bidwell) 6 pages
-
- Picture Transmission Permitted p. 37
- (Experimenters' Section) 2 pages
-
- August Jenkins Experimenters p. 59
- 1 page
-
- November Henkins Machine p. 59
- (Hints & Kinks) 1 page
-
- December Practical Picture Transmission p. 12
- (Dewhirst) 6 pages
-
- 1926
- January Voss (German) System p. 29
- 2 pages
-
- 1927
- November Weather Map Transmission and p. 9
- Reception 7 pages
- (Dewhirst)
-
- 1928
- May Amateur Television p. 17
- (Thomsen) 2 pages
-
- August Some More about Amateur Television p. 30
- (Westman) 2 pages
-
- September Radiovision p. 15
- (Dewhirst) 4 pages
-
- Synchronism p. 30
- (Jenkins) 1 page
-
- October Amateur Television Waves p. 8
- 1 page
-
- 1929
- March What Price Television p. 48
- (Sleeper) 3 pages
-
- June Photo-Electric Cells & Methods p. 17
- of Coupling to Vacuum Tubes 6 pages
- (Dewhirst)
-
- 1937
- December Radio Amateurs in the Television p. 8
- Picture 4 pages
- (Lamb)
-
- December Introduction to Modern Television p. 11
- (Wilder) 6 pages
-
- 1938
- January Circuit Elements in Modern p. 31
- Television Reception 5 pages
- (Wilder)
-
- February Sweep Circuit Considerations in p. 38
- the Television Receiver 5 pages
- (Wilder)
-
- March A Universal Test Unit for the Study p. 37
- of Television Images 3 pages
- (Wilder)
-
- April Construction of Television Receivers p. 23
- Part I 5 pages
- (Wilder)
-
- May Construction of Television Receivers p. 39
- Part II 4 pages
- (Wilder)
-
- October Building Television Receivers with p. 21
- Standard Cathode-Ray Tubes 5 pages
- (Sherman)
-
- December A Practical Television Receiver for p. 21
- the Amateur 6 pages
- (Shumard)
-
- 1939
- January Construction and Alignment of the p. 45
- Television Receiver 9 pages
- (Shumard)
-
- February Using Electro-Magnetic Deflection p. 40
- Cathode-Ray Tubes in the Television 6 pages
- Receiver
- (Sherman)
-
- March An Electrostatic-Deflection p. 52
- Kinescope Unit for the Television 4 pages
- Receiver
- (Sherman)
-
- 1940
- February A Deflection and Video Chassis for p. 29
- Television Reception 3 pages
- (Lawrence)
-
- March A Design for Living -- With p. 44
- Television 4 pages
- (Rosenblatt)
-
- May A New Electronic Television p. 30
- Transmitting System for the Amateur 7 pages
- (Sherman)
-
- June A Receiver for the New Amateur p. 38
- Television System 6 pages
- (Sherman)
-
- July An Efficient U.H.F. Unit for the p. 32
- Amateur Television Transmitter 5 pages
- (Waller)
-
- October Television Camera-Modulator Design p. 11
- for Practical Amateur Operation 13 pages
- (Lamb)
-
- Simplifying Television Defection and p. 74
- Video Chassis 1 page
- (Experimenters Section)
-
- November Two-Way Television Communication p. 36
- Inaugurated 3 pages
-
- December New Amateur Television Records p. 53
- on 112 Mc. 1 page
-
- 1944
- May Television in K6 Land p. 42
- (Souza) 3 pages
-
- December Video Amplifier Design p. 24
- (Merritt) 5 pages
-
- 1945
- November Extended Range Television Reception p. 18
- (Wilder) 6 pages
-
- 1946
- March Military Television Cameras -- and p. 41
- the Amateur 4 pages
- (Middleton)
-
- June I.F. Amplifiers in Television p. 62
- Receivers 4 pages
- (Kronenberg)
-
- 1950
- June Amateur Television -- A Progress p. 11
- Report 5 pages
- (Tilton)
-
- 1953
- November An Amateur Television Camera p. 10
- (Keller) 6 pages
-
- 1958
- August A Narrow-Band Image Transmission p. 11
- System, Part I 7 pages
- (Macdonald)
-
- September A Narrow-Band Image Transmission p. 31
- System, Part II 7 pages
- (Macdonald)
-
- 1960
- March First Amateur Transatlantic Picture p. 75
- Transmission 1 page
-
- April Slow-Scan Image Transmission p. 36
- (Macdonald) 5 pages
-
- May Slow-Scan Tests Coming Up p. 52
- (Macdonald) (TC) 2 pages
-
- September Amateur Color Transmission p. 13
- (Shadbolt) 3 pages
-
- 1961
- January S.C.F.M. -- Improved System for p. 28
- Slow-Scan Image Transmission Part I 5 pages
- (Macdonald)
-
- February S.C.F.M. -- Improved System for p. 32
- Slow-Scan Image Transmission Part II 4 pages
- (Macdonald)
-
- August League Seeks "Slow-Scan TV" p. 63
- (Happenings) 2 pages
-
- 1962
- November Amateur TV -- The Easy Way p. 33
- (Cambell) 10 pages
-
-
- 1964
- March A Compact Slow-Scan TV Monitor p. 43
- (Macdonald) 6 pages
-
- 1965
- February Slow-Scan Via OSCAR III p. 20
- (Miller) 1 page
-
- June A Slow-Scan Vidicon Camera Part I: p. 11
- Performance and Electrical Design 5 pages
- (Macdonald)
-
- July A Slow-Scan Vidicon Camera Part II: p. 15
- Mechanical Design 4 pages
- (Macdonald)
-
- August A Slow-Scan Vidicon Camera Part III: p. 24
- Setup and Operating Procedures 3 pages
- (McDonald)
-
- 1966
- September Twenty-Meter Slow-Scan Tests p. 38
- (Report on pictures) 1 page
- (Macdonald)
-
- October Narrow-Band TV Using Pseudo-Random p. 46
- Dot Scan 2 pages
- (Simpson) (TC) (Also see 1/67 TC)
-
- 1967
- January Pseudo-Random Scanning p. 47
- (Macdonald) (TC) 1 page
-
- February First Slow-Scan Pictures From p. 77
- Antarctica! 1 page
-
- November Slow-Scan TV Proposed p. 78
- (Happenings) 2 pages
-
- 1968
- February ARRL Comments on Slow-Scan TV p. 72
- (Happenings) 3 pages
-
- September Slow-Scan TV Pictures Exchanged p. 71
- Between Canada and Sweden 1 page
-
- Slow-Scan in the U.S. and Canada p. 80
- (Happenings) 1 page
-
- Slow-Scan Report p. 84
- (FCC Report and Order) 3 pages
-
- December Slow-Scan with Regular Vidicons p. 48
- (Refers to 1965 series) 1 page
- (Taggart) (TC)
-
- 1969
- May U.S.-Europe Two-Way Slow-Scan TV QSO p. 75
- (Taggart) 1 page
-
- 1970
- June Slow-Scan TV Viewing Adapter for p. 46
- Oscilloscopes 5 pages
- (Briles & Gervenack) (Also see 3/72,
- p. 56 TC)
-
- 1971
- March A Solid State SSTV Monitor p. 35
- (Tschannen) (Feedback 8/71, p.41) 5 pages
-
- November Robot Research Model 70 SSTV p. 48
- Monitor and Model 80 Camera 4 pages
- (Recent Equipment)
-
- 1972
- January What You Always Wanted to Know p. 61
- About SSTV 5 pages
- (Hastings)
-
- March More On The SSTV Viewing Adaptor p. 56
- For Oscilloscopes 1 page
- (Refers to 6/70 articles)
- (Briles & Gervenack) (TC)
-
- July A Storage-Tube Monitor for SSTV p. 34
- (Smith) 3 pages
-
- September Questions and Their Answers on the p. 56
- Solid-State SSTV Monitor 2 pages
- (Tschannen) (TC) (Refers to 3/71)
-
- December ATV with Motorola T44 UHF p. 28
- Transmitter, Part I 5 pages*
- (McLeod)
-
- 1973
- January SSTV Video Inversion and Short Scan p. 42
- (Stavrou) (TC) 2 pages
-
- February ATV with Motorola T44 UHF p. 36
- Transmitter, Part II 8 pages*
- (McLeod)
-
- March A Solid-State SSTV Monitor -- p. 27
- Mark II 7 pages
- (Tschannen) (Feedback 5/73, p. 40)
-
- August SSTV Calling Frequencies p. 47
- (Macdonald) (TC) 2 pages
-
- October A Tuner for ATV Applications p. 34
- (Bertini) 3 pages*
-
- 1974
- April Venue Slo-Scan TV Monitor p. 46
- (Recent Equipment) 2 pages
- (Feedback 5/73, p. 64)
-
- July A Character Generator for ATV p. 11
- (Ellison) 8 pages
-
- 1975 January Practical Ideas for the ATV p. 11
- Enthusiast, Part I 5 pages*
- (O'Hara)
-
- February Practical Ideas for the ATV p. 30
- Enthusiast, Part II 7 pages*
- (O'Hara)
-
- March SSTV to Fact-Scan Converter, Part I p. 33
- (Steber) 8 pages
-
- May Slow-Scan to Fast-Scan Converter, p. 28
- Part II 10 pages
- (Steber)
-
- _____
- * Condensed in Specialized Communications Techniques for the Radio
- Amateur
-
-
- July A Crystal-Controlled SSTV Sync p. 22
- System 5 pages
- (Tschannen)
-
- November TV Backdrop p. 42
- (H&K) 1 page
-
- December A Tuning Aid for SSTV p. 38
- (Hall) 3 pages
-
- 1976
- May 450 MHz ATV Repeaters p. 45
- (FM Repeater News) 1 page
-
-
- November SSTV Image Processing p. 13
- (Steber) 4 pages
-
- 1977
- February Using Still-Camera Lenses on SSTV p. 44
- Cameras 1 page
- (H&K)
-
- 1978 April QST p. 22
- Go ATV with This Transceiver 5 pages
-
- October QST p. 30
- Medium-Scan Television -- A New Frontier
-
- October QST p. 25
- SSTV Pictures from Your Microcomputer
-
- 1980 January QST p. 36
- The Microprocessor and Slow-Scan
- Television
- (Feedback: Feb., p. 17)
-
- February QST p. 27
- Medium-Scan Television Update
-
- November QST p. 11
- SSTV in Colour
-
- 1981 January QST p. 11
- Low-Cost Conversion of the Robot 5 pages
- 400 to Color
-
- June QST p. 11
- All About Amateur Television 4 pages
- (Feedback: Sept 1981, p. 51)
-
- 1982 March QST p. 59
- FAX and TV Permitted in Additional
- Frequency Bands
-
- June QST p. 15
- A Compatible Slow-Scan Color
- Television System
-
- August QST p. 24
- Care and Feeding of Linear 5 pages
- Amplifiers for ATV
-
- December QST p. 53
- PAL SSTV? (color SSTV compatibility)
-
- 1983 June QST p. 11
- SSTV Today
-
- August QST p. 11
- High-Resolution SSTV
-
-
- 1984 April QST p. 44
- Computerized ATV
-
- 1985 August QST p. 13
- Color SSTV and the Atari Computer 4 pages
-
- QST p. 25
- The VIP: A VIC Image Processor 7 pages
-
- QST p. 32
- The ATV'ers Amazing Little Grey Box 2 pages
-
- December QST p. 14
- In Search of the Perfect Picture 4 pages
-
- 1986 January QST p. 18
- In Search of the Perfect Picture 7 pages
-
- March QST p. 21
- The ROM Scanner (SSTV) 7 pages
-
-
-
- Summary
- -------
-
- Most people are scared away from trying SSTV because they think it HAS TO
- be expensive. That WAS true but it's not anymore. With 3 or 4 new color
- SSTV systems for use with the IBM PC, 1992 will be the year that SSTV
- really takes off.
-
- The members and HQ staff would like to thank the following people for
- their contributions to this information file:
-
- John Langner WB2OSZ
-
- Send any additional information or changes to mtracy@arrl.org.
-
- 73 from ARRL HQ.
-
-
-