Category Archives: Space

Articles and other information related to Space Communications using Satellites, High-Altitude Balloons, Earth-Moon-Earth (EME), etc.

SSTV Images from the ISS – Cosmonautics Day Event

The Amatuer Radio gear on the International Space Station (ISS) supports digital and SSTV modes as well as FM voice communications. The astronauts onboard periodically fire up the SSTV system and transmit images to commemorate milestones in space travel. The following is an example of receiving one of these images using our Portable Satellite Station 3.0

ARISS Russia recently sent SSTV images to commemorate Cosmonautics Day. The recent SSTV activation sent a sent of 12 images over a 1 week period. We were able to receive the full set using our Portable Satellite Ground Station. You can view each of the images in the gallery below.

Receiving these images is not difficult. All that is needed is a sound card connected to a radio which can receive transmissions from the ISS and the MMSSTV software to decode to images. You can read more about how to do this here.

Its a lot of fun to collect SSTV images from the ISS and we are looking forward to the next set of SSTV transmissions from the ISS.

Fred, AB1OC

HAB 3 Update

HAB 3 Update:  We have been working with four schools this winter and spring in preparation for the HAB 3 launch in the next few weeks.  The schools are:

  • Hudson Memorial School, Hudson, NH
  • World Academy, Nashua, NH
  • Bishop Guertin High School, Nashua, NH
  • Merrimack High School, Merrimack, NH
HMS Students on the air during HAB Session
HMS Students on the air during HAB Session

HAB Instruction

Hudson Memorial School and World Academy are new to the HAB program – we have been giving weekly sessions to the students on the science behind the HAB.  This year, we added a new topic to the curriculum, Space Communications which has proved to be popular.

World Academy Students in HAB Program
World Academy Students in HAB Program

Advanced HAB Program

The other 2 schools, Bishop Guertin High School and Merrimack High School have been through the HAB curriculum in the past.  We have developed a new program involving kit building and CW that has proven to be very popular.

We have hosted kit builds with both schools to build the Pixie 40 m QRP kit.  There was great interest from both schools in the kit build and all kits were built successfully.

Bishop Guertin High School Students building Pixie Kit
Bishop Guertin High School Students building Pixie Kit

The 2nd part of the activity is a CW competition.  Teams of 2 students compete in a competition at each school.  They use their Pixie kits with Keys connected to send a message to their teammate.  The team that copies the CW most accurately in the least time wins the prize, which is an Oscilloscope kit and another Pixie kit.  We have held the competition with the students from Merrimack High School and it was a great success and all students, teachers and NARS members who elmered them had a great time!

MHS Morse Code Competition Winners
Merrimack High School Morse Code Competition Winners

We also helped 3 students from Merrimack and Bishop Guertin High Schools to earn their Tech Licenses during our Spring Tech License Class.

HAB 3 Launch Plans

 

HAB-1 Launch!
HAB-1 Launch!

The HAB 3 Launch will happen on a Saturday or Sunday over the next few weeks.  We are watching the jet stream and launch predictions and will schedule it on a day where the conditions look good.  Stay tuned to the website for more info when the date is scheduled.

Upgrading 2.0 Satellite Station for an ARISS Crew Contact

We have been working with Hudson Memorial School near Nashua, NH to prepare for a possible ARISS Crew Contact. The ARISS folks work with schools and their Ham Radio helpers to prepare for these contacts. ARISS provides recommendations for ground station equipment to help ensure a good experience for the students. The ground station recommendations provide a solid set of specifications to support communications with the ISS on the 2m band. The recommendations include things such as:

  • A requirement to build both a primary and a backup ground station
  • Radio and power specifications (a 200W amp is recommended)
  • Antenna specifications including recommendations to provide for switchable LHCP and RHCP
  • Computer controlled azimuth/elevation positioning of antennas to track the ISS
  • Use of a receive preamplifier at the antenna

You can read more about our ISS Contact upgrade plans via the link below…

Source: Upgrading our 2.0 Satellite Station for ARISS Contact

Fred, AB1OC

Radio Amateurs Developing Skills Worldwide