Here is a packet radio bulletin i sent out in 1997 giving details of the pd modes. Feb 07, 2017 the sstv images will be transmitted as part of the mai75 experiment on 145. If your system detects a virus or other malware within an easypal download from this web page, please contact me via email using the link at the bottom of every page. It was interesting to hear that more iss sstv activity is planned, this time using pd120 mode. Just connect your computer to an hf radio, tune in an sstv frequency, and watch the pictures. The image also has one of the formats used in sstv, which is 320 by 240 pixels. This guide endeavors to provide ideas, hints and tips for the new sstv operator.
Free sstv decoder software is available on the internet. It certainly provided an interesting comparison of image decodes using pd180 sstv versus mfsk32. Mixw is a multi mode multi functional software for every day logging and contests. Last updated 20180708 my latest iss sstv video table of contents next planned event recommended decoding software tracking the iss what to expect during a pass hints next planned event the ariss sstv blog is the most authoritative source on iss sstv event info as it is maintained by the iss ham project coordinator, who. These modes are not new to sstv actually, but i have added them by way of trial. Last weekends experiment with the pd180 sstv mode was largely successful. The next big event will be the ariss sstv event that starts thursday, april 11 about 18. You will notice that number of pixels per line is not listed. Sstv is a type of radio protocol that is used to transmit low resolution images over radio. This app sends images via slow scan television sstv. The international space station iss amateur radio slow scan television sstv system is expected to be active on 145. The event is expected to continue over a two day period. Sstvs use in the space program goes back even before the moon landing, but.
The receive software uses y0, ry and by to decode the first picture line and y1, ry and by to decode the second line. If so, why not ask the author of your software to add the pd modes. The video quality of the pictures can be quite impressive. Pd120 sstv test recording by space comms free listening on. Discussion in working different modes started by no3k, dec 12, 2014. The sstv mode of transmission is expected to be pd 120 pd 180 may be a second option.
Contribute to olgamillersstvencoder development by creating an account on github. In preparation for upcoming iss slow scan tv events you can use this recording to make sure your sstv appsoftware can properly decode. Low power qrp slow scan television, sstv, is another mode that i enjoy using. In 2017 they switched from using sstv mode pd180 to pd120.
You can check for updates regarding planned operation at. Sstv s use in the space program goes back even before the moon landing, but with modern software defined radio setups, it all becomes a lot more convenient to receive. Iss sstv uses a kenwood tm d710e transceiver which is part of the amateur radio station located in the russian iss service module. The international space station iss will be sending slow scan tv sstv images to commemorate the 40th anniversary of the apollo soyuz mission this weekend. Software for sstv is abundant and can be found as freeware or.
The sstv images will be transmitted as part of the mai75 experiment on 145. Whatever software you use, make sure its set to sstv mode pd120. Formats of slowscan tv transmission image communication on. For those who arent ham radio types, slowscan tv sstv is a radio mode where the pixels in an image are sent by encoding the brightness andor color as a tone, a lot like a modem, fax machine. Sstv slow scan television is an amateur radio image transmission mode, to transmit and receive pictures via radio.
Sstv pad decodes all of the popular sstv modes, including robot, scottie, martin, and more. Slow scan television sstv is a picture transmission method used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color. When this event becomes active, sstv images will be transmitted from the iss at the frequency of 145. Robot36 sstv image decoder for windows download latest version 1. Ariss celebrates its 20th anniversary through sstv event. Russian cosmonauts are expected to activate slow scan television sstv image transmissions on 145.
Bw black and white rgb red, green and blue parts of the image are sent separately and combined by the receiving software. As a new trial, the vis signal is expanded to 16 bits. Slowscan television sstv, fastscan television atv, sstv frequencies, sstv software, modes. Just noted the iss is going to transmit sstv images using pd180. Just connect your device to an hf radio or even set it next to the radios speaker, tune in an sstv frequency, and watch the pictures. Ariss asked educators to consider ways in which they might use this opportunity to inspire their students by having them take advantage of this chance to capture images directly from space to their computers. Pd standing for paul and don and also for public domain, as we intended to publish full specifications for our new sstv modes in the hope that other sstv software developers would include them in their programs. Since this event will run continuously for 72 hours, folks in the higher latitudes should have a pretty good chance to receive all 12 of the images. Test your sstv receiving software and see how tolerant it is to the noise, soundcard calibraion errors, receiver frequency offset, etc.
This gives a slightly softer picture than pd180, but the frame time is reduced to just 2. Compare different receiving programs quantitatively. Several stations around the globe reported receiving slowscan television sstv images from the international space station on december 18. Watch pd180 sstv test recording by john brier kg4akv. To receive the sstv signal happysat used the free rx sstv software. Now that many of you have downloaded and installed sstv decoding software, we will transmit sstv again this weekend. If you want operate sstv, these are the most popular ham radio sstv. Dec 12, 2014 just noted the iss is going to transmit sstv images using pd180. When i invented the pd120 mode in 1997 it was an attempt to provide a high resolution image for hf work with a faster frame time than the threeminute pd180 mode. Locally around melbourne we have a 2m sstv net on monday and thursday evenings on vk3rml with the kind support of amateur radio victoria at 21. Sstv for your macintosh black cat systems macintosh software.
Sstv is an acronym for slow scan television and is a mode usually used on hf 030 mhz frequencies by ham radio enthusiasts for. Side note, i have a terrible slant issue with the pd 120 180 using mmstv and have to resync and resync and resync, the old format never did that. Pd180 is the sstv mode that will probably be used and. Ariss to celebrate 20th anniversary with sstv event. Sstv slow scan tv for ios free download and software. This mode allows an amateur to send and receive video pictures worldwide via 2 way radio on the hf ham bands. Quick start for mmsstv graphics by joe wj5hm mmsstv slant adjust by rick wb0vzw getting started with sstv qst sept. Multiscan 3b is an application for ham radio slow scan tv sstv communications. Twelve different images depicting space pioneer yuri gagarin the first human to orbit earth are being sent on 145.
The pd sstv modes were developed by g4ije and k0heo to provide a range of high resolution sstv modes with reasonable transmission times. The 20 year history of ariss will be displayed through a collection of 12 unique images sharing the amazing accomplishments of ariss over the last two decades. Nov 04, 2018 save wave file creates a wave file in the music folder in sstv encoder album. Download sstv encoder for pc free download sstv encoder for pcmacwindows 7,8,10, nokia, blackberry, xiaomi, huawei, oppo free download sstv encoder android app, install android apk app for pc, download free android apk files at. Digisstv and sstv pal multi mode are the works of vk4aes from australia it requires windows xp. The russian ariss announced earlier that it would activate the amateur radio sstv experiment from. These wav files then can be played by any audio player connected to a shortwave radio for example. Greg ko6th said ive never received a clearer sstv picture from anywhere, let alone outer space. The equipment used is a kenwood d710 transceiver running about 25 watts output which provides a very strong signal enabling reception using simple equipment. International space station sstv set to be active june 6 7. My main motivation was to understand the internals of sstv in practice, so performance is far from optimal. The iss uses pd180 which is a color mode where each pixels red, green.
Jan 29, 2020 yeah, everything was shut off for a couple months. Russian ariss team transmitting slowscan tv from the iss. Pysstv generates sstv modulated wav files from any image that pil can open png, jpeg, gif, and many others. Id like to show this to some interested nonhams to spark some additional interest in amateur radio. Both my old 12 year old desktop and newer i7 laptop supports this mode running windows os versions 710. Pd180 was the sstv mode used last weekend, and in december just before christmas. A 640 x 480 picture can be transmitted in 3 minutes with better quality than a 4. Multimode cocoa lets you decode and display ham amateur radio sstv. The iss sstv system is set up to send the pd180 pictures just over 180 seconds per picture, then there are no transmissions for 3 minutes before the next picture.
Suggested software for the pc is mmsstv which can be downloaded from this link mmsstv dont forget to set the mode to pd180. The pcflexnet software and instructions on how to configure it for use with baypac modems can be found here. The sstv mode is expected to be pd120, with pd180 as a possible second option. Tigertronics has not tested this software, and does not provide any technical support for it. By the way, the pd120 mode produces images that are 640 pixels by 496 lines so you must use either the picture viewer tool the magnifying glass icon or choose the always show rx viewer option in mmsstv to see them at full resolution. Please note that sstv events are dependent on other activities, schedules and crew responsibilities on the iss and subject to change at any time. The pd modes are intended for synchronous ie free running reception. Stop stops the current sending and empties the queue. Multimode cocoa lets you decode and display ham amateur radio sstv slow scan tv transmissions. The development of the pd modes classic sstv by g4ije. Sstv pad lets you decode and display ham amateur radio sstv slow scan tv transmissions. Sstv transmission modes general characteristics by john langner, wb2osz here are some characteristics of sstv modes currently in use. The wonderful world of sstv there is a wonderful fraternity of hams operating sstv. Wraase sc2 180 the mode specifications are taken from the dayton paper of jl barber.
If you want operate sstv, these are the most popular ham radio sstv apps. The program uses the sound card, and an appropriate interface to any digital or analogue sstv. Digital sstv software category is a curation of 9 web resources on, easypal, digtrx, sstv pal multimode. Pd 240 yc 248 480 pd 180 yc 187 480 pd 160 yc 161 384 pd 120 yc 126 480 pd 90 yc 90 240 robot 8 bw 8 120 a, e 12 bw 12 120 e 24. As you can see, the pd120 image is slightly softer looking than the pd180 version, but still pretty good. Dec 21, 2015 in preparation for upcoming iss sstv events you can use this recording to make sure your sstv app software can properly decode sstv transmission like the ones the iss will be sending, which use. A pc running one of the common slow scan tv decoding applications.
The 300 blocks of the image are transmitted from left to right and from top to bottom. The reception can be made at any time during transmission, as in analog sstv. In particular, i have considered good tradeoff between the transmission time, picture size, and quality. It has many useful features that make your qso logging process almost a 100% automatic procedure. Pd120 sstv test recording by space comms free listening. I use an inexpensive laptop computer with a 233 mhz cpu and windows 2000. Thus each line of sstv sent is actually encoded from two picture lines.
The software i use is either cpix by silicon pixels or and engineering version of spacecam1. Contribute to olgamillersstvencoder2 development by creating an account on github. Happysat writes that he found an active signal on that frequency most of the time. Slowscan television sstv, fastscan television atv, sstv frequencies, sstv software, modes some sstv mode details. Pd120 sstv test recording by space comms published on 20151221t16. This is because sstv uses analog modulation which can be sampled at any rate. Slow scan television sstv is transmitted by the ariss russia team from the amateur radio station in the russian service module of the international space station using the callsign rs0iss. To function as digital sstv programs, they also require the hdssv dos parts provided by barry sanderson. Sstv slow scan television allows the user to send fixed pictures in general in colors, with a bandwidth similar to the one of hf fax shift of 800 hz, white at 2300 hz and black at 1500 hz. Want to display or send sstv transmissions, without using a bulky computer. Digital master 780 updated digital master 780 is a windows multimode program which uses ham radio deluxe for radio control.
Paul turner g4ije, codeveloper of the sstv pd modes, says regarding the mmsstv pd180 mode. Also, the old 8s mode is still supported by many sstv programs. Most slow scan pictures are transmitted and received using a home computer and suitable software. Sstv slow scan television allows the user to send fixed pictures in general in colors, with a bandwidth similar to the one of hf fax shift. Sstv software for ham radio sstv emission category is a curation of 21 web resources on, slowrx, ofdm tv, mixw v3. Quick start for mmsstv graphics by joe wj5hm mm sstv slant adjust by rick wb0vzw getting started with sstv qst sept. It is part of hrd package and support psk, qpsk, contestia, cw, dominoex, hell, mfsk, mt63, olivia, rtty, rttym, throb and sstv.
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