ISS 2395 MHz Digital Amateur TV Blank Transmission Test

Front panel of the HamTV transmitter

Front panel of the HamTV transmitter

The request to power up the Ham Video system was added to the crew task list on April 16.

That means, that crew is invited to activate Ham Video as a free time activity. No precise day/time for this activity is fixed.

Please monitor the 2395 MHz at 2.0 Ms/s frequency and tell everyone as soon as you observe it.

This will be a period of blank transmission for testing and calibration. Please make maximum use of it.

Read the HamTV overview by Gaston Bertels ON4WF

Join the ISS HamTV Yahoo Group

ARISS-EU HamTV Bulletins

HamTV on Facebook

Video of ISS HamTV – Koichi Wakata KC5ZTA April 13, 2014

With a heavy heart – G3CWV – SK

Clive Wallis G3CWV

Clive Wallis G3CWV

It is with great sadness that I have to inform you that I have just learnt of the passing of our dear friend Clive Wallis, G3CWV on 27th March 2015.

Clive has been a very staunch supporter of AMSAT from the very early days. Many will recall his intense interest and loyalty in following UOSAT-2/UO-11. He maintained a very comprehensive web site with details of the spacecraft’s activities. He wrote many articles for Oscar News about his activities. He attended many AMSAT-UK Colloquia.

He was awarded the Louis Varney cup for 2015 by the RSGB, and although he knew of the award before his passing, the formal presentation is not until 25 April.

His funeral is to be held on Tue 22 April 2015 at 3.00pm at Christchurch, Bedford Road, Hitchin, Herts, UK. I am sure that his family would appreciate the presence of any AMSAT members who are able to be there.

We send our condolences to his widow, Janet.

RIP, Clive.

Jim Heck G3WGM

For 17 years between 1996 and 2013 Clive produced monthly reports on OSCAR-11  (UoSAT-2).
The report archive is at

Clive’s OSCAR-11 page

In 1993 Clive Wallis G3CWV took over distribution of satellite related BBC software

FUNcube-1 (AO-73) Transmitting Again

AO-73 (FUNcube-1) - Image credit Wouter Weggelaar PA3WEG

AO-73 (FUNcube-1) – Image credit Wouter Weggelaar PA3WEG

FUNcube-1 (AO-73) is again transmitting telemetry. A restart took place during the 0930 UT pass over Europe.

The CubeSat had stopped transmitting at around 2018 UT on Wednesday, April 15.

The team is still investigating the situation, but have concluded from earlier telemetry analysis that it was safe to switch back to nominal operations.

During the 0930 UT pass over The Netherlands, Wouter PA3WEG commanded it back to nominal mode with full automatic mode switching.

At this time, there is no reason to believe this event was dangerous to the spacecraft, all systems were nominal and the battery is nearly full.

Many thanks for all the reports that the team have received.

FUNcube-1 (AO-73) Telemetry:
• Dashboard App
• Data Warehouse Archive
• Whole orbit data shows the effect

ISS Ham Radio SSTV Video

On the weekend of April 11/12 Randy Hall K7AGE used his Arrow dual band J-Pole antenna, FT-817, Signalink USB interface and MMSSTV software to capture some great amateur radio Slow Scan Television (SSTV) images from the International Space Station (ISS).

Watch SSTV Images from the International Space Station

ISS Slow Scan TV Active on Weekend of April 11

Using WebSDRs Worldwide for the ISS

ISS SSTV in the UK Press

ISS SSTV in the Press

ISS SSTV Image 2 of 12 received by Andrew Garratt M0NRD April 11, 2015

ISS SSTV Image 2 of 12 received by Andrew Garratt M0NRD April 11, 2015

AMSAT-UK member Andrew Garratt M0NRD got some good publicity for Amateur Radio from the recent ISS Slow Scan Television transmissions.

The SSTV pictures were sent in celebration of Yuri Gagarin becoming the first human to reach space, on April 12, 1961. The Russian cosmonauts on board the station transmitted images from Gagarin’s life which were received by radio hams worldwide. Andrew said he hoped it would encourage more people to become interested in radio.

Read the full story at

Local newspapers are generally only too glad to publish stories like this if someone takes the time to get in touch and tell them about it. Andrew made sure the newspaper was aware of his local clubs website URL and Facebook page enabling those reading the story to contact the club.

Follow M0NRD on Twitter

ISS Slow Scan TV Active on Weekend of April 11

Using WebSDRs Worldwide for the ISS

Hacker at AMSAT/TAPR Dayton Banquet

Mike Ossmann AD0NR – Image Credit

Mike Ossmann AD0NR – Image Credit

Michael Ossmann, AD0NR, will give a talk “Adventures of a Hacker Turned Ham” to the AMSAT/TAPR Banquet at the Dayton Hamvention.

The ninth annual TAPR/AMSAT Banquet will be held on Friday night, May 15, at 1830 EDT. This dinner is always a highlight of the AMSAT (Radio Amateur Satellite Corp.) and TAPR (Tucson Amateur Packet Radio) activities during the Dayton Hamvention.

This year’s speaker will be Michael Ossmann, AD0NR, “Adventures of a Hacker Turned Ham”. Michael Ossmann, AD0NR, grew up as a computer nerd embracing the hacker ethos. Eventually Michael became very interested in the security of wireless systems such as remote keyless entry, garage door openers, Wi-Fi, and Bluetooth. He designed Ubertooth One, a Bluetooth sniffer that was successfully funded on Kickstarter.

Not one to rest, Michael later designed and successfully funded HackRF One, an open source SDR platform that attracted the attention of the amateur radio community. Michael will talk about his unique perspective on the community as an outsider looking in, why he resisted getting a license for years, and why he finally decided to join. Michael will also share his thoughts on what it means to be a hacker, what it means to be a ham, and what amateur radio may look like in the decades to come.

Tickets ($35 each) must be purchased online in advance on the AMSAT-NA website at through the AMSAT Store tab. Tickets will not be sold at the Hamvention or at the door. Tickets purchased online may be collected at the AMSAT booth (433-435, 444-446).

The Banquet will take place at the Kohler Presidential Banquet Center, 4572 Presidential Way, Kettering, OH 45429 (just south of Dayton). The cash bar will open at 1830 EDT, with the dinner commencing around 1900 EDT.

Source ANS

Michael Ossmann AD0NR on Twitter

HamRadioNow: What’s a Whitebox?

DEF CON 22 – Michael Ossmann – The NSA Playset: RF Retroreflectors

AD0NR SDR Course videos

ACMA consults on removing 3400-3410 MHz

ACMA Logo 940x627The Australian regulator the ACMA is consulting on a number of changes to the amateur radio licence including removal of a key 3400 MHz allocation.

3400-3410 MHz is allocated to the Amateur Satellite Service in ITU Regions 2 and 3. It  is used by amateurs in many countries around the world for weak signal communications including moon bounce (EME).

The ACMA consultation closes on April 24.

The WIA announcement is at

Consultation documents

UK Microwave Group 3400 MHz page

ISEE-3 Spacecraft on BBC World Service

BBC World Service Click Radio Show Audience - Credit Kate Arkless Gray

BBC World Service Click Radio Show Audience – Credit Kate Arkless Gray

Radio amateur Dennis Wingo KD4ETA along with freelance science writer and broadcast journalist journalist Kate Arkless Gray were on the BBC World Service Click radio show.

The show – Space and Citizen Science – was broadcast live from the BBC Radio Theatre, London on Tuesday, March 31, 2015.

Prior to the broadcast Kate Arkless Gray, who hopes to become an astronaut, tweeted:
“Goodness. Didn’t realise #BBCClickRadio was actually going out live. No pressure, says @billt [Bill Thompson], it’s only going to a third of the world. Ah”

Dennis KD4ETA described how in 2014 radio amateurs and other volunteers gained control of of the NASA-abandoned ISEE-3/ICE spacecraft. They even succeeded in firing the spacecraft thrusters. During the show Dennis managed to squeeze in a mention of amateur radio satellites and CubeSats.

The BBC description reads:

Our excitement over space has taken on new dimensions with nations such as India showing they too have the technical expertise and energy to mount a mission to Mars. Citizen Science has also shown how ordinary people can make important contributions to the space adventure.

Myriad groups of volunteers have launched their own ambitious projects: such as the team who decided to awaken a spacecraft, more or less forgotten by NASA; and another team who plan to build the first crowd-funded moon lander. In a special edition of Click, Gareth Mitchell and Bill Thompson are joined by a panel of experts to explore our fascination with Space, and to discuss how our knowledge of life beyond earth benefits from the input of volunteers and Citizen Science.

Listen to a recording of the show at


Telegraph newspaper – Meet the British woman fighting to go into space

ISEE-3/ICE Thrusters Fired

Watch the presentation on ISEE-3/ICE given to the AMSAT-UK International Space Colloquium in July 2014

ISS Slow Scan TV Active on Weekend of April 11

ISS SSTV image 9/12 received by Frank Heritage M0AEU at 19:21 UT on Dec 18, 2014

ISS SSTV image 4/12 received by Frank Heritage M0AEU at 19:21 UT on Dec 18, 2014

The Russian Federal Space Agency (Roscosmos) has announced another round of amateur radio Slow Scan Television (SSTV) activity from the International Space Station (ISS). It will commemorate the anniversary of the first human spaceflight by Yuri Gagarin which took place on April 12, 1961.

Continuous operation, using the call sign RS0ISS, is expected to start at 1000 UT on Saturday, April 11 and continue until 2130 UT on Sunday, April 12.

ISS SSTV image 9/12 received by Martin Ehrenfried G8JNJ using the SUWS WebSDR on Dec 18, 2014

ISS SSTV image 9/12 received by Martin Ehrenfried G8JNJ using the SUWS WebSDR on Dec 18, 2014

Twelve different images will be sent on 145.800 MHz FM using the SSTV mode PD180, with a 3-minute off time between transmissions.

One of the photos shows the commemorative diploma created by PZK, the national Polish Amateur Radio society, on the occasion of the 80th anniversary of the birth of first cosmonaut Yuri Gagarin.

The equipment used will be the Kenwood D710 transceiver located in the Russian Service Module. It is thought the equipment may be producing about 25 watts output which should provide a very strong signal.

Plans are being discussed for transmitting new images from space enthusiasts around the world in the coming months. Additional details will be released.

The images received by amateurs world-wide during previous transmissions can be seen at and you are invited to upload any pictures you receive during the upcoming transmissions.

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

International Space Station - Image Credit NASA

International Space Station – Image Credit NASA

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.

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. (Note: see comments below about MMSSTV adjustments which may be needed to reduce picture slant)

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 apart from the British Isles and Europe where 2.5 kHz deviation is more common.

Many FM rigs can be switched been wide and narrow deviation FM filters. For best results you should select the wider deviation filters. Handhelds all seem to have a single wide filter fitted as standard.

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

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 MMSSTV PD180 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.”

In Option > Setup MMSSTV (O) > RX make sure Auto-slant is ticked.

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

ISS Fan Club – Tracking / Predictions

Free MMSSTV Slow Scan TV software


For more on Slow Scan Television SSTV, see this article SSTV – The Basics

How to be successful with the ISS Slow Scan Television (SSTV) imaging system

IZ8BLY Vox Recoder, enables you to record the signals from the ISS on 145.800 MHz while you’re away at work

ARISS Slow Scan TV (SSTV) Blog and Gallery

Those capturing images are encouraged to upload them to

Information on the MAI-75 SSTV experiment

Video showing reception of SSTV using the FUNcube Dongle Pro SDR and SDR-RADIO going into Virtual Audio Cable (VAC) then to MMSSTV software

ISS SSTV received online with SUWS WebSDR

ISS SSTV 1/12 received by Martin Ehrenfried G8JNJ using the SUWS WebSDR Dec 18, 2014

ISS SSTV 1/12 received by Martin Ehrenfried G8JNJ using the SUWS WebSDR Dec 18, 2014

Video of AESP-14 CubeSat deployment from ISS

AESP-14 CubeSat

AESP-14 CubeSat

The Japanese Space Agency, JAXA, have released a video showing the deployment of the Brazilian amateur radio satellite AESP-14 from the International Space Station (ISS).

The AESP-14 is a 1U CubeSat developed by undergraduate and graduate engineering students at the Technology Institute of Aeronautics (ITA) in Brazil. The satellite’s primary mission is to test the various subsystems in the space environment.

AESP-14 CubeSat released from ISS - Photo by Samantha Cristoforetti IZ0UDF

AESP-14 CubeSat released from ISS – Photo by Samantha Cristoforetti IZ0UDF

The satellite was sent to the ISS as cargo on the SpaceX Falcon 9 mission CRS-5. Launch had been scheduled for December 16, 2014 but was postponed three times and it wasn’t until January 10, 2015 that the launch eventually took place. AESP-14 then awaited deployment from the ISS by the JEM Small Satellite Orbital Deployer (J-SSOD) which is in the Japanese Experimental Module, Kibo.

The deployment took place around 1250 UT on Thursday, February 5. The AESP-14 telemetry beacon had a power output of 500 mW and used AX.25 with 9600 bps GMSK modulation (G3RUH standard) on 437.600 MHz. It should have started transmitting 30 minutes after deployment but as of March 30 nothing had been heard. It may be the battery did not survive several months without being recharged or the antenna may have failed to deploy.

Watch Deployment of AESP-14 Brazilian CubeSat

AESP-14 website

Telemetry information sheet

AESP-14 CubeSat released from International Space Station