To help out, here are some essex ham sstv audio files, recorded in a couple of the more common formats. A 2meter fm radio with an output rating of 25 to 50 watts or. Analog broadcast television requires at least 6 mhz wide channels, because it transmits 25 or 30 picture frames per second in the ntsc, pal or secam color systems, but. Air show 20 points perform 2 aerial gestures before touching the ground in coop asking for trouble 10 points taunt glados in front of a camera in each of the five coop courses. Most famously, sstv was used to send back some of the first pictures of space and the moon. Eachconsequentimageslowly redrew the original which was still visible on the phosphor. The equipment used is a kenwood d710 transceiver running about 25 watts output which provides a very strong signal enabling reception using simple equipment. Save wave file creates a wave file in the music folder in sstv encoder album.
New cave johnson quotes from the new portal 2 dlc duration. Over on the radio antics blog fellow rtlsdr enthusiast andrew has been using the rtlsdr to receive slow scan television sstv amateur signals. If an calibration header gets detected, the resulting image will be saved in the pictures directory and can be immediately seen in the image gallery. Quick start for mmsstv graphics by joe wj5hm mm sstv slant adjust by rick wb0vzw getting started with sstv qst sept. Find the hidden signal in one of the rat mans dens playstationtrophies resero.
Portal 2 hidden sstv message in test chamber 17 youtube. Decode and transmit slow scan tv sstv on your ipad. Sstv signal reports most hams use an rsv readability, strength, video system for communicating analog sstv signal reports, but if you ask some hams, like johann w5cst who has been using this mode for decades, they prefer the p picture quality scale. Slow scan television sstv is a picture transmission method used mainly by amateur. Ill be describing the puzzle design behind valves portal 2. There are fifty achievements in portal 2 for the xbox 360 for a total of gamer points. The main category is sstv software that is about sstv software for ham radio sstv emission. In this video i decode the hidden sstv message of test chamber 17 in portal 2. Jan 29, 2014 sstv, or slowscan television, is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color. For those that played portal, sstv was used to include.
Sstv is a method ham radio enthusiasts use to send small images to one another. When do you guys believe the portal movie trailer will. If youd like files in other formats, please add a comment at the bottom of the page. In chamber 6, at the start of the game, there is a time in which you push a button. A television studio production control room in olympia, washington, august 2008. Chamber 17, under the third lift leading to the exit. Red pages podcastrpp is a video game and books themed podcast. The sites mentioned above are two of the best sites around. One of the things that comes out of the cube dropper is a radio, from portal 1. 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. Pressing it will activate an sstv signal like the one in the previous test chamber, and in portal one. The images often contain their ham call sign overlaid on the image. The most famous picture being this one from the apollo 11 mission which. Jul 15, 2009 the sites mentioned above are two of the best sites around.
I found that companion cube in portal 2 plays turret opera. Because sstv is a narrowband mode, it can be transmitted via voice channels. This link is listed in our web site directory since thursday aug 23 2001, and till today mmsstv mm hamsoft has been followed for a total of 45968 times. During his research he found that brazillian mexican pirates hijack military satellite transponders to send sstv pictures of their families on 255. This link is listed in our web site directory since saturday dec 20 2014, and till today rxsstv has been followed for a total of 2006 times. The name dinosaur may be a reference to the book dinosaur. Here is the full list of achievements you can get in the game. 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 a literal term for sstv is narrowband television. Stop stops the current sending and empties the queue. Portal update 312010 transmission received decoded. To the untrained ear these signals can sounds like a shrill, high pitched, warbling sound. The most popular modes of sstv are robot, scottie, and martin. Heres a link to a page with the decoded sstv images.
Decode the vis code and start image decoding according to the mode read from the vis code. Analog broadcast television requires at least 6 mhz megahertz mhz 106 hz wide channels, because it transmits 25 or 30 picture frames per second in. Sstv pad lets you decode and display ham amateur radio sstv slow scan tv transmissions. A good quality fm receiver or scanner that supports standard fm 5k. So i went to the websdr in your area the suws websdr near london, uk and i got two images. Sstv signal generator sstv signal viewer what it is. This kind of interface hamcomm type circuit is used by several other rtty and sstv programs. Mar 02, 2010 im just showing how the images were created using the radio sounds in portal. Particular editions of books, scientific papers etc. Using a ssb transceiver images may be transmitted worldwide. The signal is supposed to go below the noise during the qsb nulls. A technical term for sstv is narrowband television. Id like to introduce the ebook for ham radio operators and radio listeners interested in special communication modes for image transmission sstv, radio facsimile wefax and digital sstv hamdrm.
To model selective fading, use the multipath option, set a short delay of 12 ms and an amplitude ratio of 0 db. P stands for picture quality level on a scale from 0 to 5 best. Sstv software for ham radio sstv emission category is a curation of 21 web resources on, ofdm tv, slowrx, mixw v3. This afternoons best mystery from the new reigning champs of brilliantly artful viral campaigns. But one of the problems you will find is that with 20 meters being like it is, you may get an almost p5 picture to someone else, and not even see yourself on one of the cameras that are featured on those sites. Again in portal 2, a radio can be found falling from a vital apparatus vent, which will play another hidden sstv image when taken to one of rattmans dens within that chamber.
In portal 2, a radio can be found one of rattmanns dens, playing. Happysat, a reader of wrote in to let us know his experience with receiving milsat pirate sstv images using his r820t rtlsdr and his homebrew qfh antenna. What it really is in an encoded image being sent through frequency modulated radio. Sc2 180 old bw or unsupported modes can be viewed in raw mode. A short run of good quality coax rg2, 100 feet or less. Portal 2 brought us everything we loved about the first game portals and left. Fleetsatcom is a satellite communications system used by the us navy for radio communications. Sstv is used to transmit still images over a voice channel. However, when some of them are played through an sstv decoder. Sstv pad decodes all of the popular sstv modes, including robot, scottie, martin, and more. Slowscan television sstv is a method for picture transmission used by amateur radio operators to transmit and receive images. Quick start for mmsstv graphics by joe wj5hm mmsstv slant adjust by rick wb0vzw getting started with sstv qst sept.
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. May 26, 20 portal 2 sstv images analogue format used in ham radio watching video of iss sstv with sstv software running, sound from laptop speakers unexpectedly picked up by microphone. May 26, 2011 in steam library desktop mode, right click portal 2 and select properties from the menu. Its compact, its handy, its powerfull, its easy to use and its free.
Soon enough, the portal 2 announcement arg was born, hereafter known. Finding this easter egg will activate the achievement entitled final transmission. Analog broadcast television requires at least 6 mhz wide channels, because it transmits 25 or 30 picture frames per. The arg was created solely by portal 2s development team. Find the hidden signal in one of the rat mans dens. To decode an sstv signal, you have several options. Click on the link and download the best sstv programme around gsh pc dl4saw sstv download dl4saw. About mmsstv mm hamsoft the resource is currently listed in in a single category. An outdoor omnidirectional antenna or small beam the higher the gain the better.
When decoded it shows a picture of the companion cube on the surface of the moon. Image communication on short waves sstv, wefax, hamdrm. Jun 14, 20 over on the radio antics blog fellow rtlsdr enthusiast andrew has been using the rtlsdr to receive slow scan television sstv amateur signals. May 01, 2011 in this video i decode the hidden sstv message of test chamber 17 in portal 2. A pc running one of the common slow scan tv decoding applications. Found an sstv signal while digging around in the portal 1. Rxsstv is an easy and back to basics sstv decoding program.
Portal 2 sstv images analogue format used in ham radio watching video of iss sstv with sstv software running, sound from laptop speakers unexpectedly picked up by microphone. On saturday, september 6, at gmt paulo pv8dx emailed the news that the international space station iss slow scan television sstv on 145. There is a small enclave in the walls on the left side of the chamber, with a sort of entry in it. Fan speculation is that this is a background character introduced in a comic book set. Pd120 sstv test recording by space comms free listening on. I used the program mmsstv to decode the fm signal into the image file. Apr 29, 2014 happysat, a reader of wrote in to let us know his experience with receiving milsat pirate sstv images using his r820t rtlsdr and his homebrew qfh antenna.
You have to play developers commentary mode in order to find this message. To model echo, use the multipath option as well, but set a longer delay and a lower amplitude. How do i convert this developer commentary to an image. Iss sstv received on suws websdr iss sstv image received by paulo pv8dx on saturday, september 6, at gmt paulo pv8dx emailed the news that the international space station iss slow scan television sstv on 145. This is the subreddit for portal and portal 2, games developed by valve software. Introduced through his murals in portal, his story was expanded in portal 2. Question about chell in relation to glados takeover.
Aperture science radio combine overwiki, the original halflife. Pd120 sstv test recording by space comms published on 20151221t16. It automatically saves received sstvimages any supported mode is detected automatically too and. The signal is actually an sstv slow scan televeision signal, often used in ham radio. Receiving mexican pirate sstv on military satellite. Receiving sstv from fleetsatcom pirates radio pirates often make use of the fleetsatcom satellites to send and receive slow scan television sstv pictures over a wide distance.
To be made in each test chamber, finding all radios and jamming the transmission. Thanks to paul m0cnl for suggesting that it would be handy to have access to some test sstv audio files. Rx sstv is an easy and back to basics sstv decoding program. Slowscan television sstv signal identification wiki.
The button is susposed to make a cube come out of the cube dropper, but instead comes out garbage, or atleast thats what glados calls it. Portaltransmission received strategywiki, the video game. Sstv, or slowscan television, is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color. Frog fractions 2 is a sequel to frog fractions, a flash game by twinbeard studios. It automatically saves received sstv images any supported mode is detected automatically too and. In the aforementioned sequel, portal 2, more sstv images are broadcast in rattman dens. Sstv is a television standard as the images are scanned row by row and then transmitted at a very low rate hence the designation slow scan television. Its an sstv signal, which turns into the following images when decoded.
Completing a chamber or chapter does not enable the radios to be available. 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. Steam community video portal 1 all the sstv signals. May 15, 2015 receiving sstv from fleetsatcom pirates radio pirates often make use of the fleetsatcom satellites to send and receive slow scan television sstv pictures over a wide distance. Digital sstv software category is a curation of 9 web resources on, easypal, digtrx, sstv pal multimode. I have some photos of it in action in the comments. All the pictures have been received with the sstv programme mmsstv 1. Im just showing how the images were created using the radio sounds in portal. The audio is a playing of a datassette signal for a 50hz pal computer. Found an sstv signal while digging around in the portal 1 game files. Now that i know its in the game files, how do i spawn.