Category Archives: Space

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

ISS Voice Repeater is QRV!

Thanks to some great work by the ARISS Team, a new Voice Repeater system is operating on the International Space Station (ISS)! Here is the access information…

Source: ISS Voice Repeater is QRV!

Thanks to some great work by the ARISS Team, a new FM Voice Repeater system is operating on the International Space Station!

ISS Voice Repeater Hardware
ISS Voice Repeater Hardware

The link above provides the details and the information needed to access the ISS Voice Repeater.

I was able to work several stations using the new Voice Repeater this morning. It is very sensitive and uses 5 watts of downlink power with a good antenna on the ISS. I was able to make solid contacts using the Ground Station here using only 1.5 watts uplink power when the ISS was at 10 degrees above the horizon. At least one of my contacts was with a station using an HT with a whip antenna!

The voice repeater is sensitive enough and uses a power level that will enable folks with an HT and a whip antenna to make contacts using the ISS when its close to the horizon. It should also be easy to make contacts using mobile rigs that can support cross-band operation as well. Program your radios!

I’m looking forward to working you through the ISS!

Fred, AB1OC

AO-27 Satellite Is Back On The Air!

The AO-27 FM satellite is back on the air! It is an FM V/U Mode satellite that was launched back in 1993. The satellite’s Amateur Radio payload became inoperative about 7 years ago due to …

Source: AO-27 Is Back!

The AO-27 FM satellite is back on the air! This satellite is an FM V/U Mode satellite that was launched back in 1993. The satellite is back on the air on a limited-time basis (4 minutes, twice per orbit over the mid-latitudes).

I was able to make my first contact through AO-27 this morning. The contact was with AI9IN in Indiana, USA. I’m looking forward to making more contacts using this satellite in the near future.

You can learn more about this satellite and how to make contacts using it via the link above. I hope to contact you on it sometime soon.

Fred, AB1OC

Getting Started With Amateur Satellites (and Progressing to Linear Birds)

We get quite a few requests from folks to explain how to get started with Amateur Radio Satellites. Requests for information on how to build a computer-controlled ground station for Linear Satellites are also pretty common. I recently got such a request from our CWA class so I decided to put together a session on this topic…

Source: Getting Started With Amateur Satellites (and Progressing to Linear Birds)

We recently put together a presentation and demonstration on Getting Started with Amateur Radio Satellites. We covered quite a bit of ground during the presentation including:

  • How to put together a simple station and work FM EasySats with HTs and a handheld antenna
  • A recorded demonstration of some contacts using FM EasySats
  • How-to build a computer-controlled station and work Linear Transponder Satellites
  • Fixed and Portable Satellite Station Antenna options
  • A recorded demonstration of some contacts using Linear Satellites
  • How-to work digital (APRS digipeater) contacts
  • How-to receive SSTV Transmissions from the ISS

We recorded the session so that we could share it with folks. The link above will take you to our Blog where you can view the presentation video and Powerpoint. The post also includes links to many additional articles about building and operating Amateur Satellite Stations.

Fred, AB1OC

Radio Amateurs Developing Skills Worldwide