CAMSAT amateur radio transponder satellites to launch this year

CAMSAT has released details of three new amateur radio satellites, CAS-5A, CAS-5B and CAS-6, that are hoped to launch in September 2018. Two of the satellites CAS-5A and CAS-6 will carry transponders.

CAS-5A a 6U CubeSat which will include the following capabilities:
• HF/HF – H/T Mode Linear Transponder
• HF/UHF – H/U Mode Linear Transponder
• HF – CW Telemetry Beacon
• VHF/UHF – V/U Mode Linear Transponder
• VHF/UHF – V/U Mode FM Transponder
• UHF – CW Telemetry Beacon
• UHF – AX.25 4.8k/9.6k Baud GMSK Telemetry.

The transponders will have 30 kHz bandwidths except the H/U one which will be 15 kHz. Planning a launch in September 2018 from the Jiuquan Satellite Launch Center into a 539×533 km 97.5 degree orbit.
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=619

CAS-5B a femto-satellite architecture 90Lx80Wx50H mm with a mass of 0.5kg Proposing a UHF CW beacon and to be deployed from CAS-5A when in space.
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=620

CAS-6 a 50 kg micro satellite approx 490 x 499 x 430 mm. It will include:
• VHF CW Telemetry Beacon
• U/V Mode 20 kHz Linear Transponder
• AX.25 4.8k baud GMSK telemetry downlink
• Deployable Antennas
• Solar Panels, Lithium ion battery and power controller
• Integrated Housekeeping Unit
• Three-axis stabilization system
• Atmospheric Wind detector
• S-band TT&C system (non-amateur radio band)
• X-band Data link system (non-amateur radio band)

Planning a Sea Launch Pad from the China Academy of Launch Vehicle Technology in September 2018 into a 579 x 579 km 45 degree orbit.
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=622

IARU Satellite Frequency Coordination Status http://www.amsat.org.uk/iaru/

Ada Lace book features amateur radio and space communications

Emily Calandrelli KD8PKR with her new Ada Lace book

Emily Calandrelli KD8PKR with her new Ada Lace book

Ada Lace, Take Me to Your Leader is a new book written for young people by Emily Calandrelli KD8PKR that features amateur radio and space communications.

Ada is an 8-year-old with a knack for science, mathematics, and solving mysteries with technology. Her latest project is to fix up a ham radio, something that she could use to contact people on this planet and beyond.

The book is available on Amazon at http://amzn.to/2DbKt9L

Emily Calandrelli KD8PKR
https://twitter.com/TheSpaceGal
https://twitter.com/ada_lace

What is Amateur Radio? http://www.essexham.co.uk/what-is-amateur-radio

Find a UK amateur radio training course near you https://thersgb.org/services/coursefinder/

Free online amateur radio Foundation course https://www.essexham.co.uk/train/foundation-online/

Spring issue of OSCAR News now available

OSCAR News 221 Spring 2018 Front CoverE-members of AMSAT-UK can now download the Spring 2018 edition of OSCAR News here.

This edition describes how to make contacts through amateur radio satellites using your 144/430 MHz FM handheld transceiver and has an update on the satellites carrying FUNcube SSB/CW linear transponders.

The paper edition should be sent to postal members in 2-3 weeks.

In this issue:
• From the Secretary’s Keyboard
• 2018 Meetings & Events calendar
• News Roundup
• Work FM Satellites with your HT!
• Parasitic Quadrifilar Helical Antenna
• AMSATS AND HAMSATS – Amateur Radio and other small satellites
• Orbital Dynamics – Seen in the Times Newspaper
• Columbus – 10 years in Space
• Stemettes
• A cold day for a nice array
• FM Satellites: Good operating practices for beginning and experienced operators
• Travelling and activating satellites
• EO88/Nayif-1 birthday
• Getting rid of some of the rubbish!
• Rotator problems
• AMSAT-UK 2016-2017 – Statement of Accounts
• Connectors for Az/El rotators
• Thinking Day On The Air with GB5WDG
• Information from the Orbital Debris Quarterly News
• Stop Press: Space Industry Bill – Royal Assent

AMSAT-UK FUNcube Mission Patch

AMSAT-UK FUNcube Mission Patch

Membership of AMSAT-UK is open to anyone who has an interest in amateur radio satellites or space activities, including the International Space Station (ISS).

E-members of AMSAT-UK are able to download OSCAR News as a convenient PDF that can be read on laptops, tablets or smartphones anytime, anyplace, anywhere. Join as an E-member at Electronic (PDF) E-membership

PDF sample copy of “Oscar News” here.

Join AMSAT-UK using PayPal, Debit or Credit card at
http://shop.amsat-uk.org/

E-members can download their copies of OSCAR News here.

HamRadioNow interviews AMSAT President Joe Spier K6WAO

AMSAT President Joe Spier K6WAO talks about AMSAT and Satellites with Gary Pearce KN4AQ of HamRadioNow at the Orlando HamCation.

Watch HRN 384 AMSAT Update, Live from Orlando

HamRadioNow videos https://www.youtube.com/user/HamRadioNow/videos

Orlando HamCation https://www.hamcation.com/

AMSAT-UK: https://amsat-uk.org/
Twitter: https://twitter.com/AmsatUK
Facebook: https://facebook.com/AmsatUK
YouTube: https://youtube.com/AmsatUK

CAS-4A and CAS-4B amateur radio linear transponders activated

CAS-4A and CAS-4B launch on CZ-4B

CAS-4A and CAS-4B launch on CZ-4B

On Wednesday, October 18, 2017 the amateur radio linear (SSB/CW) transponders on the CAS-4A and CAS-4B satellites were activated.

CAMSAT’s amateur radio payloads piggybacked on the optical remote sensing micro-satellites ZHUHAI-1 01 (OVS-1A / CAS-4A) and ZHUHAI-1 02 (OVS-1B / CAS-4B) that were launched at 0300 GMT on Thursday, June 15, 2017 from the Jiuquan Satellite Launch Center, on the CZ-4B launch vehicle. The primary payload of the launch was a hard X-ray modulation telescope satellite (HXMT).

Satellite CAS-4A/OVS-1A/ZHUHAI-1 01:
● Architecture: Micro-satellite
● Dimensions: 494Lx499Wx630H mm
● Mass: 55 kg
● Stabilization: three-axis stabilization system with its +Y surface facing the earth
● Primary Payload: optical Camera with 1.98m resolution

CAS-4A Orbit:
● Orbit type : Sun synchronization orbit
● Apogee: 524 km
● Inclination: 43°
● Period: 95.1 minutes

CAS-4A Amateur Radio Payload:
● Call sign: BJ1SK
● VHF Antenna: one 1/4λ monopole antenna with max. 0 dBi gain located at +Z side
● UHF Antenna: one 1/4λ monopole antenna with max. 0 dBi gain located at -Z side
● CW Telemetry Beacon: 145.855 MHz 17 dBm
● AX.25 4.8k Baud GMSK Telemetry: 145.835 MHz 20 dBm
● U/V Linear Transponder Downlink: 145.870 MHz 20 dBm, 20 kHz bandwidth, Inverted
● U/V Linear Transponder Uplink: 435.220 MHz

CAS-4 Satellite

CAS-4 Satellite

Satellite Name: CAS-4B/OVS-1B/ZHUHAI-1 02:
● Architecture: Micro-satellite
● Dimensions: 494Lx499Wx630H mm
● Mass: 55 kg
● Stabilization: three-axis stabilization system with its +Y surface facing the earth
● Primary Payload: optical Camera with 1.98m resolution

CAS-4B Orbit:
● Orbit type : Sun synchronization orbit
● Apogee: 524 km
● Inclination: 43°
● Period: 95.1 minutes

CAS-4B Amateur Radio Payload:
● Call sign: BJ1SL
● VHF Antenna: one 1/4λ monopole antenna with max. 0 dBi gain located at +Z side
● UHF Antenna: one 1/4λ monopole antenna with max. 0 dBi gain located at -Z side
● CW Telemetry Beacon: 145.910 MHz 17 dBm
● AX.25 4.8k Baud GMSK Telemetry: 145.890 MHz 20 dBm
● U/V Linear Transponder Downlink: 145.925 MHz 20 dBm, 20 kHz bandwidth, Inverted
● U/V Linear Transponder Uplink: 435.280 MHz

73!
Alan Kung, BA1DU

CAMSAT Press Release PDF

N2YO online real-time tracking:
CAS-4A http://www.n2yo.com/satellite/?s=42761
CAS-4B http://www.n2yo.com/satellite/?s=42759

CAS-4A and CAS-4B

AMSAT-UK Colloquium Talks – Videos being added to YouTube

Working satellites with Arrow AntennasVideos of the presentations given at the AMSAT-UK International Space Colloquium, which was held as part of the RSGB Convention in Milton Keynes, October 14-15, are being made available on YouTube.

The first of the videos is ‘An introduction to Amateur satellites’ by David Johnson G4DPZ and Carlos Eavis G3VHF.

The PDF of the slides is here.

Other presentations are expected to be uploaded in the coming days.

Watch An introduction to Amateur satellites

PDF Slides of ‘An introduction to Amateur satellites’
https://ukamsat.files.wordpress.com/2017/10/beginners-guide-to-amateur-satellites-by-dave-johnson-g4dpz.pdf

AMSAT-UK videos on YouTube https://www.youtube.com/user/AMSATUK/videos

Our thanks to the British Amateur Television Club and Wouter Weggelaar PA3WEG for their work in recording, editing and uploading these videos.