Compare different receiving programs quantitatively. A portal that hams think of as the first place to go for information, to exchange ideas, and be part of whats happening with ham radio on the internet. Easypal has a very large peak to average energy envelope. Rxsstv is an easy and back to basics sstv decoding program. We use the sstv national calling frequency for 2 meter simplex which is 145. A builtin computer sound card may not be stable enough for sstv.
If you want operate sstv, these are the most popular ham radio sstv apps. Sstv slow scan television is an amateur radio image transmission mode, to transmit and receive pictures via radio. To send and receive messages, you need to connect your amateur radio rig to a computer, and then use software to send and decode images. It offers robot 36 easy enough, but also has two additional apparently proprietary color modes and two blackandwhite modes, in addition to kenwood fast fm. There are options fast sync and normal sync in this mode. Sstv slow scan television one of the image modes atv amateur television i. Home of the sstv atv ring and mb7icl echolink node, live airnav radar tracking from clacton on sea. Aprs, sstv, satellite analog ems communications digital ems communications p25, dmr, tetra trunked radio air traffic control. One of the first points i should touch on in this section is rig duty cycle. Bw black and white rgb red, green and blue parts of the image are sent separately and combined by the receiving software.
The most popular sstv software today is perhaps mmsstv. However, many newbies using fm, overdeviate or overmodulate on tx and this causes many errors. There are now dozens of software defined radio packages that support the ultra cheap rtlsdr. An interface will also provide 1 an easy way to adjust sound levels, 2 isolation of computer sounds, 3 isolation of stray rf, and 4 a simplified way to configure an external ptt circuit. Amateur radio operators used similar raster scan picture transmissions called sstv slow scan television. The repeater will recognise the tone burst, store the picture and then retransmit it. When the sstv software receives a 2300 hz tone, it knows to display. If you are wondering what amateur radio is about, its basically a two way radio service where licensed operators throughout the world experiment and communicate with each other on frequencies reserved for license holders. Rtty software, digital mode ham radio amtor, psk31, ax25.
Whatever software you use, make sure its set to sstv mode pd120, as thats what the iss will be using, and if you dont set that, you might not decode any. Image communication on short waves sstv, wefax, hamdrm. Theres boud to be at least one who will tell you more than you ever wanted to know about how to go about and set up your radio, computer and software for sstv. Slow scan television is a method for transmitting still images.
The photos and pictures on this page were sent and received using a computer running the mmsstv software and a realistic htx202 2meter fm ht, a quarter wave whip antenna and running about 1watt. Setting up the audio levels for receiving and transmitting will require some experimenting, just as the case is with other pieces of software too. It supports multiple protocols and modes with automatic detection capability. Fast scan television atv, sstv frequencies, modes sstv is a mode that uses a computer and an amateur radio transceiver to send and receive still images over radio. I have been told that the singal to noise ratios of these modes on 2 meter fm is extremely good, compared to hf. Although we are called radio amateurs, we can also transmit and receive television signals. Find the latest tracks, albums, and images from software. Very hard to do for other phones need a fast computer and lots of decrypting time almost jailed for using an. Ham radio digital modes software list and descriptions.
I just assembled a bunch of vhf fast scan atv equipment 426, 900, 1. The ares group uses some 2 meter fm digital modes for certain, local emcomm. Fast scan television dtv digital television wefax weather facsimile hellschreiber text mode similar to facsimile encodes an image as a series of analog tones for transmission via radio reduced horizontal and vertical to reduce bandwidth. Sstv audio files i recorded for mmsstv receive testing. A radio and antenna capable of receiving fm audio on 145. The equipment used is a kenwood d710 transceiver running about 25 watts output which provides a very strong signal enabling reception using simple equipment. The sound card of a pc, with special processing software, acts as a modem. Slowscan tv over fm radio using software defined radio. Pictures were also transmitted over radio using radiofacsimile or apt analog raster scans. Slow scan television sstv is a picture transmission method used mainly by amateur radio.
Im direktbetrieb konnen uber db0qf fast alle mode gemacht werden. The purpose of this net is to help hams learn, experiment and use slow scan tv in the quiet and safety of 2 meters. Slow scan television sstv is a ham radio operating mode in which pictures are transmitted over radio, via tones of 15002300 hz with synchronization pulses at 1200 hz. This has now changed to use the faster pd120 mode with a 2 minute offtime which will allow more images to be received in an orbital pass. Slowscan television sstv is a method for picture transmission used by amateur radio operators to transmit and receive images. Ham radio sstv, slow scan television, hfvhfuhf youtube. Fast scan tv fstv and slow scan tv sstv are modes used by hams to send pictures or images over the radio. The world of low cost software defined radio rtlsdr.
Popular alternatives to for web, android, iphone, ipad, android tablet and. Slowscan television sstv, fast scan television atv, sstv frequencies, sstv software, modes. A digital scope is also available among the viewing options. Slow scan tv for windows 9598 and nt, winpix32 supports all sstv modes in all of the active sstv families. A new amateur radio software has emerged that makes most others obsolete. Free, secure and fast windows ham radio software downloads from the largest open. Turn down the volume on your sstv generator, so as to prevent it from being obnoxiously loud to everyone who might be listening for voice contacts. But there is a chance of having an incorrect synchronization in that case. Chromapix cpix is a brand new workstation approach to slow scan tv. Sep 02, 2018 check out sstv, slow scan television, to send and receive images all over the world with a very simple setup.
Two of the most popular ways send and receive television signals are standard fast scan television and slowscan television sstv. Slowscan television sstv signal identification wiki. Sstv frequencies everything you need to know cw touch keyer. Also any amateur radio you might have is going to get the job done. Receiving slow scan tv images from the international space. A pc running one of the common slow scan tv decoding applications. An external sound card or sound card interface is highly recommended.
Slow scan television sstv is transmitted by the ariss russia team from the. Software is always designed with a purpose in mind. Sstv software for ham radio sstv emission category is a curation of 21 web resources on, slowrx, ofdm tv, mixw v3. A good quality fm receiver or scanner that supports standard fm 5k. Interfaces need a radio, computer, interface between the two, and software. I have one of kenwoods kvt10 sstv units the commercial version of the vch1 and im trying to find sstv software that can receive the various modes sent by this unit. The arrl technical coordinator tc is a sectionlevel official appointed by the section manager to coordinate all technical activities within the section. Sstv was originally an analogue mode based on frequency modulation fm. 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. As you will be listening only, a scanner may be used, and you need no radio license to listen. A 2meter fm radio with an output rating of 25 to 50 watts or. Digital sstv has become possible with little trouble in recent times with the use of digital radio mondiale drm. Dec 17, 2015 whatever software you use, make sure its set to sstv mode pd120, as thats what the iss will be using, and if you dont set that, you might not decode any. I get a certain thrill when i hear the satellite come up above the horizon and the static from the receiver all of a sudden swell with voices, beeps, and other noises.
It provides fm quality stereo audio over hf as well as the ability to send data. Medium speed computer with sound card and speakers. This net meets at 6 pm on a designated sunday each month. I simply connected the ht to the computer using two, six foot shielded mono audio cables with 3. Mmsstv multiscan 3bmultimode qsstv droidsstv sstv slow scan tv ham radio decoder bundle. I will be off the air until i build a ham shack at my new location. We categorize the programs into general purpose software, single purpose software, research software and software compatible with audio piping. This page contains a description of many of the popular hf digital modes software. To build the largest and most complete amateur radio community site on the internet. Special thanks to the astronat richard garriott w5kwq aboard iss for his extra efforts to communicate with fellow hams, setting up the hamequipment for sstv, repeater mode, aprs and so much more. In the past twelve different images were sent on 145. In the amateur radio world, this allows you to send images as data to each other ober amateur radio. Receiving slow scan tv images from the international space station. Do have capabilities for 440 fast scan tv but even there little activity.
Cw and analog radiotelephony speech modulation like am, fm or ssb played a predominant role during the first 100 years of radio communication. Drm is a new digital radio standard for use by hf broadcasters. When the fast sync options is selected, the program can synchronize with receiving signal much faster, because it doesnt need special idle characters to do it. 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. Compare the best free open source windows ham radio software at sourceforge. One nice thing about it is that the interface used for sstv will work for. Sstv software for ham radio sstv emission category is a curation of 21 web. Leara digital net page has interface setup tips, getting started with mmsstv, images transmitted during the. Sstv is generally used on the hf bands and can only send a single still picture at a time due to its low data rate and bandwidth. 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.
On this page we will attempt to list, categorize and provide a brief overview of each software program. Drm mode has gained so much popularity that the rdft mode has become nearly obsolete. A hardware solution getting started with slow scan television qst september 1997, pp. The video standard used by north american fast scan atv stations was established by. Sstv fast guide get on sstv fast with this quick tip quide. Examples of received iss sstv images in robot36 using rxsstv 16.
This net typically meets on the second sunday of each month at 6 pm. A technical term for sstv is narrowband television. Fm atv repeater pi6ats amateur television repeater pi6ats in the middle of the netherlands. Thumbnail browsing is fast and ole support is ensured. Ham radio hf digital modes software information and list also includes a link to help you identify the sounds of ham radio digital communications signals. Fm tends to produce a better picture than ssb does, just not as much interferencestatic etc. Iss international space station sstv activity in july aug. Slow scan tv sstv how it works amazing amateur radio. Remember that it was stated earlier that an sstv signal is a continuous audio tone, which varies only in frequency. Examples of received iss sstv images in robot36 using rx sstv 16. Here you can find my wifes free open source sstv encoder.
Dec 20, 2014 home inside dxzone best sstv software. Sstv, both analogue and digital slow scan television using mmsstv, easypal and kgstv. Breathing new life into vintage sstv the triplepic sstv. Formats of slowscan tv transmission image communication on. Sstv operations slow scan television sstv images can be transmitted from the international space. Quick start for mmsstv graphics by joe wj5hm mm sstv slant adjust by rick wb0vzw getting started with sstv qst sept. Dream is a software implementation of a drm receiver. The pc is connected to the hf transceiver using an af interface. An outdoor omnidirectional antenna or small beam the higher the gain the better. A fast afc mode can be used to track doppler shifting bpsk signals. Also the old 8s mode is still supported by many sstv programs for. I love this app, but ive had a slight problem this last time ive installed it. The martello tower group operate an sstv repeater, mb7tv using mmsstv in repeater mode on 144.
Mixw is the brainchild of nick fedoseev, ut2uz and dennis nechitailov uu9jdr. This means mode a and qam 64 should be ok for nice fast transfers. Test your sstv receiving software and see how tolerant it is to the noise, soundcard calibraion errors, receiver frequency offset, etc. This has now changed to use the faster pd120 mode with a 2 minute offtime which will. Due to fast transmission, the used bandwidth of fast fm is in 1. 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. Beginners guide to using slow scan tv doc file by guy ab0dp getting into sstv pdf file by guy ab0dp getting into sstv power point presentation by guy ab0dp hot mic syndrome pdf file by guy ab0dp hot mic syndrome doc file by guy ab0dp problems with sstv on fm pdf file by guy ab0dp problems with sstv on fm doc file by guy ab0dp.
Lately, ive been working 20m sstv but most of the stations im seeing are midwesteast coast. Tastedive can help you discover new music, movies, tv shows, books. If you know of a program that is missing please leave. There are several ways that amateurs communicate by television. You can use the mmsstv engine to give your programs slow scan tv functions. Jeffrey kopcak k8jtk ohio section technical coordinator. Sstv software for ham radio sstv emission the dxzone. This bandwidth limitation implies that the scan rate is much lower than fullmotion video. Software capable of decoding the sstv pd120 signal. For information about using the iss packet system, check out this resource provided by joanne maenpaa, k9jkm. The world of low cost software defined radio by carl laufer. Sending an sstv signal is much like keying down your transmitter for an extended period of time.
A small ham group in missouri is building a packet backbone across the state, and the local access to the longer range nodes is via 2 meter fm packet. Use fast, lowresolution modes that transmit in under 30 seconds, like the oldschool 8second black and white mode or. Problems with sstv on fm pdf file by guy ab0dp problems with sstv on fm doc file by guy ab0dp getting into digital communications by. While the old analog broadcast tv requires 6mhz bandwidth to transmit video and audio, sstv uses a much narrow bandwidth of about 3khz. The free software a little time to learn the software. In this video i will demonstrate it on the free to download software on the pc, and. Image communication on short waves free ham radio handbook for sstv, wefax and digital sstv. Slowscan television sstv, fast scan television atv, sstv frequencies, sstv software, modes some sstv mode details. A short run of good quality coax rg2, 100 feet or less. Feb 27, 2020 a digital scope is also available among the viewing options. To access the repeater, transmit a 1750hz tone burst, wait for the cw ident and then send your picture within ten seconds. To give you an overview of whats available more pop up every year, i have grouped the major uses of amateur radio software under the following categories.