Anthony Guiller E. UrbanoLicensed Amateur Radio Operator (Class A)

Science Education Specialist, UP NISMED

Email: aeurbano@up.edu.phWebsite: www.nightskyinfocus.com

Accessing Amateur Radio Satellites4th UPRI-NOAH TALK ON RESILIENCY

October 28, 2019, NIGS AVR, UP DILIMAN

What is an amateur radio satellite?

• Transponder

• Relays signals

• Orbiting Satellite

Carrying

Amateur Radio

(OSCAR)DIWATA2: Uplink 437.500 MHz/

Downlink 145.900 MHz

• Japan, Malaysia,

Singapore, China,

Indonesia, South Korea,

Vietnam, Hong Kong,

Thailand, Taiwan, India,

Sri Lanka, Australia

• Low-cost yet reliable

Why use amateur radio satellites?

• License

• Radio

•DIY antenna

• Schedule

What do you need to access the satellites?

How do satellite transponders work?

Photo: Google

How do satellite transponders work?

Photo: Google

• Satellite pass

• Point the antenna

• Listen

• Transmit

•13 minutes talk-

time per pass

Making a Satellite Contact

Some Amateur Radio Satellites

AO-91 AO-92 IO-86 SO-50 PO-101AMERICA AMERICA INDONESIA SAUDI ARABIA PHILIPPINES

Sta Rosa – Dagupan – Okinawa via DIWATA 2

https://nightskyinfocus.com/2019/10/28/diwata-2-test-march-2019/

• Successful contact:

Sta Rosa to Dagupan

Sta Rosa to Okinawa

•Good signal

• Radio and DIY antenna

•5-9, QSL, QTH, CQ, 73

Sta Rosa – Dagupan – Okinawa via DIWATA 2

• Receive images (ISS)

• Receive weather images

• Broadcast a beacon (APRS)

• Receive satellite telemetry

• Talk to astronauts (ISS)

•Conduct experiments

What else can you do with satellites?

Photo: Azman 9W2NCS

• Radio License

• Long-distance

• Low-cost

• Reliable

• Emergency Comms

Summary: Accessing Amateur Radio Satellites

Photo: Google

Anthony Guiller E. UrbanoLicensed Amateur Radio Operator (Class A)

Science Education Specialist, UP NISMED

Email: aeurbano@up.edu.phWebsite: www.nightskyinfocus.com

Accessing Amateur Radio Satellites4th UPRI-NOAH TALK ON RESILIENCY

October 28, 2019, NIGS AVR, UP DILIMAN