The International Space Station (ISS) Amateur Radio Slow Scan Television (SSTV) system is expected to be active on 145.800 MHz FM on June 6 and 7, likely using PD-120 format. The schedule calls for transmissions on Wednesday, June 6, 1230 – 1630 UTC, and Thursday, June 7, 1150 – 1525 UTC.
The SSTV images will be transmitted using the Kenwood TM-D710 transceiver in the Russian ISS Service Module. The call sign will be RS0ISS. ISS transmissions use 5 kHz deviation FM. Good results have been reported outdoors using just a quarter-wave whip antenna.
The AMSAT-UK website has more information on tracking and decoding software.
Source:ARRL
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. 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 images received by amateurs world-wide during previous transmissions can be seen at http://www.spaceflightsoftware.com/ARISS_SSTV/ and you are invited to upload any pictures you receive during the upcoming transmissions.In the past twelve different images were sent on 145.800 MHz FM using the SSTV mode PD180, with a 3-minute off time between each image. This has now changed to use the faster PD120 mode with a 2 minute off-time which will allow more images to be received in an orbital pass.
In the UK newspaper the Daily Mail, Jonathan O’Callaghan wrote about how 22-year-old Radek Karwacki, an AMSAT-UK member, received pictures from the ISS using a £10 ($15) RTL-SDR dongle and a dipole antenna, see https://amsat-uk.org/2015/02/04/iss-sstv-in-uk-press/
On Windows PC’s the free application MMSSTV can be used to decode the signal, on Apple iOS devices you can use the SSTV app for compatible modes. For Linux systems try QSSTV.All you need to do to receive SSTV pictures direct from the space station is to connect the audio output of a scanner or amateur radio transceiver via a simple interface to the soundcard on a Windows PC or an Apple iOS device, and tune in to 145.800 MHz FM. You can even receive pictures by holding an iPhone next to the radio loudspeaker.
The ISS puts out a strong signal on 145.800 MHz FM and a 2m handheld with a 1/4 wave antenna will be enough to receive it. The FM transmission uses 5 kHz deviation which is standard in much of the world. In IARU Region 1 (British Isles, Europe, Africa) FM equipment is usually set by default to the narrower 2.5 kHz deviation.
Many FM rigs can be switched been wide and narrow deviation FM filters. For best results you should select the filter for wider deviation FM. Handhelds all seem to have a single wide filter fitted as standard.
During most of a pass the ISS may be more than 15 degrees above the horizon so an antenna with a high radiation angle will give better results. Simple antennas such as an outdoor ¼ wave ground plane or dipole should give good results. Large 2m colinear antennas don’t work quite as well because their radiation pattern is concentrated at the horizon.
The ISS Fan Club website will show you when the space station is in range.
ISS SSTV image 12/12 received by Martin Ehrenfried G8JNJ using the SUWS WebSDR Dec 18, 2014
Paul Turner G4IJE, co-developer of the SSTV PD modes, says regarding the MMSSTVPD180 mode: “Don’t forget to either enable “Always show RX viewer” or use the “Picture viewer” (magnifying glass icon) to show the picture at its real resolution of 640 x 496. If you just view as normal you will only see 320 x 248 resolution, which kind of defeats the object of using a high resolution mode.”
On the AMSAT-BB Rick W2JAZ and Alan WA4SCA comment on the need to set the MMSSTV sound card setting to 48 kHz instead of the default 44.100 kHz
• Options
• Setup
• Misc
• Then the Clock section at the bottom of the page
The MMSSTV default setting may need to be set to 24000 (exactly half of the sound card setting). You then should get good clean images.
The sound card adjustments will vary slightly depending on the version of the OS you are running, but usually will be under the advanced properties for the device. You can probably use a higher sampling rate for the sound card so long as it is a power of 2 multiple (2,4,8, etc) of the value in MMSSTV. For instance 192k (8x) has no issues. The same applies to most similar software.
You can receive the SSTV transmissions online using the SUWS WebSDR remote receiver located near London along with the MMSSTV software https://amsat-uk.org/2014/08/15/suws-websdr-moves-to-new-site/
Use the R4UAB WebSDR to receive SSTV when ISS is over Russia http://websdr.r4uab.ru/
ISS Fan Club – Tracking / Predictions http://www.issfanclub.com/
Free MMSSTV Slow Scan TV software http://hamsoft.ca/pages/mmsstv.php
iOS SSTV App https://itunes.apple.com/gb/app/sstv/id387910013
Linux QSSTV Linux QSSTV https://sourceforge.net/projects/qsstv/
For more on Slow Scan Television SSTV, see this article SSTV – The Basics
http://www.essexham.co.uk/sstv-the-basics
How to be successful with the ISS Slow Scan Television (SSTV) imaging system
http://www.marexmg.org/fileshtml/howtoisssstv.html
IZ8BLY Vox Recoder, enables you to record the signals from the ISS on 145.800 MHz while you’re away at work http://antoninoporcino.xoom.it/VoxRecorder/
Information on the MAI-75 SSTV experiment
http://www.energia.ru/eng/iss/researches/education-26.html
Video showing reception of SSTV using the FUNcube Dongle Pro SDR and SDR-RADIO going into Virtual Audio Cable (VAC) then to MMSSTV software https://www.youtube.com/watch?v=K6MOrX9iZCk
ISS SSTV received online with SUWS WebSDR
https://amsat-uk.org/2014/09/06/iss-sstv-on-suws-websdr/
ARISS SSTV Blog http://ariss-sstv.blogspot.co.uk/
You can see SSTV images received from the ISS and upload your images at the ARISS SSTV Gallery
http://www.spaceflightsoftware.com/ARISS_SSTV/7
News
ARRL CEO David Minster, NA2AA, to Keynote QSO Today Virtual Ham Expo
ARRL CEO David Minster, NA2AA, will keynote the QSO Today Virtual Ham Expo March 13 – 14 weekend. Minster’s talk — part of an 80+ speak... Read more
23cm band in the spotlight with regulators
During the week 15 – 19 February, the preparatory work for WRC-23 agenda item 9.1b continued in ITU‑R Working Party 4C (WP4C)... Read more
How to Connect a Modern Radio to a Legacy Tube Amp
How to Connect a Modern Radio to a Legacy Tube Amp Read more
A Filament Slingshots Towards Earth | Solar Storm Forecast 02.22.2021
https://www.youtube.com/watch?v=bNxuOtBMN2s Read more
German radio hams tackling RF noise pollution
DARC reports 35 Electrical Noise Area Monitoring Systems (ENAMS) have been delivered and another 20 locations are sought as part of the effort to moni... Read more
Permission granted for 60 foot ham radio masts
Joel Banner Baird Burlington Free Press SHELBURNE – One-on-one talks with fellow amateur radio operators as far away as Moscow are now firmly on... Read more
VHF
Ham Radio vs GMRS
Ham Radio vs GMRS – Ham Radio compared to GMRS frequencies and modes – which ones is better? Today let’s talk about both of them, ho... Read more
Best GMRS Handheld Radio 2021 – GMRS Radio Comparison
Best GMRS Handheld Radio 2021 – GMRS Radio Comparison Read more
New Arrival! Dual Mode Portable Repeater RT97P
Dual Mode Portable Repeater RT97P will come. It is similar to the portable repeater RT97. Now we have the RT97 GMRS band, and this RT97P is the d... Read more
ARISS and Partners Are Investigating Space Station Ham Radio Failure
Amateur Radio on the International Space Station (ARISS) and its partners are troubleshooting a failure within the on-board NA1SS amateur station in t... Read more
CHESS CubeSat Constellation to Carry FUNcube Transponders
In 2020, a project between AMSAT-UK, AMSAT-NL, and Swiss universities got under way with the aim of equipping two Swiss satellites — for now under the... Read more
The First Thing To Upgrade On Your Handheld Ham Radio
It’s true that the best thing to upgrade on your ham radio handheld is its antenna. However, there is something you should do before making that anten... Read more
Review
Ham Radio vs CB
Ham Radio vs CB, Citizen’s Band Radio – Ham Radio compared to CB frequencies and modes – which ones is better? Today let’s tal... Read more
Ham Radio Forms a Planet-Sized Space Weather Sensor Network
The article “Ham Radio Forms a Planet-Sized Space Weather Sensor Network,” appeared on February 9 in Eos, Earth & Space Science News — an American... Read more
SCU-LAN10 with FTdx101 / FTdx10 Overview
SCU-LAN10 with FTdx101 / FTdx10 Overview Read more
RFI NOISELOOP Portable Receive Antenna
RFI NOISELOOP Portable Receive Antenna Read more
An Aircraft Tale That Applies to Ham Radio
An Aircraft Tale That Applies to Ham Radio Read more
How Antenna Traps Work
How Antenna Traps Work Read more