Home » Archimedes archive » Acorn User » AU 1998-10.adf » Features » SSTV/!PSinstall/PscanFiles/Extras/Interfaces/!ReadMe
SSTV/!PSinstall/PscanFiles/Extras/Interfaces/!ReadMe
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
Tape/disk: | Home » Archimedes archive » Acorn User » AU 1998-10.adf » Features |
Filename: | SSTV/!PSinstall/PscanFiles/Extras/Interfaces/!ReadMe |
Read OK: | ✔ |
File size: | 0265 bytes |
Load address: | 0000 |
Exec address: | 0000 |
File contents
Pscan DrawFiles *************** The HamComm DrawFile shows the simplest possible interface that can be used for full transceive SSTV operation. The PscanIF2 DrawFile is an improved version designed by G4IJE. This circuit is strongly recommended for use with Pscan. See the main manual / help file for more information on interfaces. Both circuits include an open-collector PTT transistor. This can be used to key most modern rigs directly, although a better approach is to use the transistor to pull in a small relay which can be wired to give automatic changeover from voice to SSTV. *** G4IJE 06.04.96 ***
00000000 0a 50 73 63 61 6e 20 44 72 61 77 46 69 6c 65 73 |.Pscan DrawFiles| 00000010 0a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |.***************| 00000020 0a 0a 54 68 65 20 48 61 6d 43 6f 6d 6d 20 44 72 |..The HamComm Dr| 00000030 61 77 46 69 6c 65 20 73 68 6f 77 73 20 74 68 65 |awFile shows the| 00000040 20 73 69 6d 70 6c 65 73 74 20 70 6f 73 73 69 62 | simplest possib| 00000050 6c 65 20 69 6e 74 65 72 66 61 63 65 20 74 68 61 |le interface tha| 00000060 74 20 63 61 6e 20 62 65 20 75 73 65 64 0a 66 6f |t can be used.fo| 00000070 72 20 66 75 6c 6c 20 74 72 61 6e 73 63 65 69 76 |r full transceiv| 00000080 65 20 53 53 54 56 20 6f 70 65 72 61 74 69 6f 6e |e SSTV operation| 00000090 2e 0a 0a 54 68 65 20 50 73 63 61 6e 49 46 32 20 |...The PscanIF2 | 000000a0 44 72 61 77 46 69 6c 65 20 69 73 20 61 6e 20 69 |DrawFile is an i| 000000b0 6d 70 72 6f 76 65 64 20 76 65 72 73 69 6f 6e 20 |mproved version | 000000c0 64 65 73 69 67 6e 65 64 20 62 79 20 47 34 49 4a |designed by G4IJ| 000000d0 45 2e 20 54 68 69 73 20 63 69 72 63 75 69 74 20 |E. This circuit | 000000e0 69 73 0a 73 74 72 6f 6e 67 6c 79 20 72 65 63 6f |is.strongly reco| 000000f0 6d 6d 65 6e 64 65 64 20 66 6f 72 20 75 73 65 20 |mmended for use | 00000100 77 69 74 68 20 50 73 63 61 6e 2e 20 53 65 65 20 |with Pscan. See | 00000110 74 68 65 20 6d 61 69 6e 20 6d 61 6e 75 61 6c 20 |the main manual | 00000120 2f 20 68 65 6c 70 20 66 69 6c 65 20 66 6f 72 0a |/ help file for.| 00000130 6d 6f 72 65 20 69 6e 66 6f 72 6d 61 74 69 6f 6e |more information| 00000140 20 6f 6e 20 69 6e 74 65 72 66 61 63 65 73 2e 0a | on interfaces..| 00000150 0a 42 6f 74 68 20 63 69 72 63 75 69 74 73 20 69 |.Both circuits i| 00000160 6e 63 6c 75 64 65 20 61 6e 20 6f 70 65 6e 2d 63 |nclude an open-c| 00000170 6f 6c 6c 65 63 74 6f 72 20 50 54 54 20 74 72 61 |ollector PTT tra| 00000180 6e 73 69 73 74 6f 72 2e 20 54 68 69 73 20 63 61 |nsistor. This ca| 00000190 6e 20 62 65 20 75 73 65 64 20 74 6f 0a 6b 65 79 |n be used to.key| 000001a0 20 6d 6f 73 74 20 6d 6f 64 65 72 6e 20 72 69 67 | most modern rig| 000001b0 73 20 64 69 72 65 63 74 6c 79 2c 20 61 6c 74 68 |s directly, alth| 000001c0 6f 75 67 68 20 61 20 62 65 74 74 65 72 20 61 70 |ough a better ap| 000001d0 70 72 6f 61 63 68 20 69 73 20 74 6f 20 75 73 65 |proach is to use| 000001e0 20 74 68 65 0a 74 72 61 6e 73 69 73 74 6f 72 20 | the.transistor | 000001f0 74 6f 20 70 75 6c 6c 20 69 6e 20 61 20 73 6d 61 |to pull in a sma| 00000200 6c 6c 20 72 65 6c 61 79 20 77 68 69 63 68 20 63 |ll relay which c| 00000210 61 6e 20 62 65 20 77 69 72 65 64 20 74 6f 20 67 |an be wired to g| 00000220 69 76 65 20 61 75 74 6f 6d 61 74 69 63 0a 63 68 |ive automatic.ch| 00000230 61 6e 67 65 6f 76 65 72 20 66 72 6f 6d 20 76 6f |angeover from vo| 00000240 69 63 65 20 74 6f 20 53 53 54 56 2e 0a 0a 2a 2a |ice to SSTV...**| 00000250 2a 20 47 34 49 4a 45 20 30 36 2e 30 34 2e 39 36 |* G4IJE 06.04.96| 00000260 20 2a 2a 2a 0a | ***.| 00000265