Dual-Band Slim Jim Antenna for Satellites

N9TAX Slim Jim mounted on top of the 3-meter mast

N9TAX Slim Jim mounted on top of the 3-meter mast

The AMSAT-SM website has an article on the dual-band omni-directional 145/435 MHz Slim Jim antenna developed by N9TAX.

Lars SM0TGU comments that the antenna works great for satellite passes below 30 degrees elevation, but signals are considerably weaker on high elevation passes.

Read the AMSAT-SM article in Google English at
http://tinyurl.com/AMSAT-SM-Dual-Band-Antenna

Further information on the N9TAX dual-band Slim-Jim antenna is at http://n9tax.com/Slim Jim Info.html

The antenna is available via the Two Way Electronix website at
http://www.2wayelectronix.com/

Live TV coverage of two ham radio satellite launches

A Dnepr Launch

A Dnepr Launch

An estimated 34 satellites carrying amateur radio payloads are expected to be deployed this week.

Four will deploy from the International Space Station on Tuesday and Wednesday, November 19/20, the rest in two separate launches.

The first launch, a Minotaur-1 rocket from Wallops Island Virginia, will be sometime after 00:30 UT, Wednesday, November 20, the other will be a Dnepr from Dombarovsky near Yasny at 07:10:11 UT on Thursday, November 21.

Live TV coverage of the Minotaur-1 launch
http://www.ustream.tv/channel/nasa-tv-wallops

Live TV coverage of the Dnepr launch
http://live.cput.ac.za/live.html

ISS CubeSats Deploy Tuesday and Wednesday
https://amsat-uk.org/2013/11/16/iss-cubesats-deploy-tuesday-and-wednesday/

November Amateur Radio Satellite Deployments with frequency list
https://amsat-uk.org/2013/11/13/three-amateur-radio-satellite-deployments-in-november/

AMSAT-UK Logo

AMSAT-UK Logo

On launch days follow the chat on the #cubesat IRC channel see http://www.cubesat.org/index.php/collaborate/ground-operators

Minotaur-1 CubeSats
http://cubesat.org/index.php/missions/upcoming-launches/135-ors3-launch-alert

On the FUNcube-1 Dnepr launch day check the FUNcube Yahoo Group
https://amsat-uk.org/funcube/yahoo-group/

Live webcam at the FUNcube-1 Monitoring Station in Bletchley Park
http://www.batc.tv/ch_live.php?ch=3

FUNcube-1 Welcome to launch week!
https://amsat-uk.org/2013/11/17/welcome-to-launch-week/

For updates on all amateur satellite launches check the AMSAT Bulletin Board (AMSAT-BB) at
http://www.amsat.org/amsat-new/tools/maillist/

Join AMSAT-UK

AMSAT-UK_Bevelled_LogoFounded in 1975 AMSAT-UK is a voluntary organisation that supports the design and building of equipment for Amateur Radio Satellites.

AMSAT-UK initially produced a short bulletin called OSCAR News to give members advice on amateur satellite communications. Since those early days OSCAR News has grown in size and the print quality has improved beyond recognition. Today, OSCAR News is produced as a high-quality quarterly colour A4 magazine consisting of up to 40 pages of news, information and comment about amateur radio space communications.

The new lower-cost E-membership provides OSCAR News as a downloadable PDF file giving members the freedom to read it on their Tablets or Smartphones anytime, anyplace, anywhere.

An additional advantage is that the PDF should be available for download up to 2 weeks before the paper copy is posted.

AMSAT-UK FUNcube Mission Patch Rev4 20100609

AMSAT-UK FUNcube Mission Patch

The Membership year lasts for 12 months starting on January 1 each year.

If you join after July 31 of any particular year, then you will receive complimentary membership for the whole of the following year, i.e. join on November 12, 2013, and you have nothing more to pay until Dec 31, 2014.

Now is a very good time to join.

Take out an Electronic membership here http://shop.amsat.org.uk/shop/category_9/Join-Amsat-UK.html

E-members can download their copies of OSCAR News from http://www.amsatuk.me.uk/on

A sample issue of OSCAR News can be downloaded here.

Welcome to launch week!

ZACUBE-1, FUNcube-1 and HiNCube in the deployment pod - Image credit Wouter Weggelaar PA3WEG

ZACUBE-1, FUNcube-1 and HiNCube in the deployment pod – Image credit Wouter Weggelaar PA3WEG

Well it has finally arrived. Little did we think, back in 2009 that we would not be launching FUNcube-1 until late 2013 but, at last, we are almost there.

Final gluing of FUNcube-1 bolt by Wouter Weggelaar PA3WEG – Image credit Gerard Aalbers

Final gluing of FUNcube-1 bolt by Wouter Weggelaar PA3WEG – Image credit Gerard Aalbers

The past four years have been spent trying to find a suitable launch opportunity, dealing with many legal and administrative issues, in addition to finalising the technical requirements for the spacecraft. We also then had to convert those requirements and ideas into reality.

The core FUNcube team comprises of just about a dozen of us – radio amateurs from the UK and the Netherlands together with software specialists from both countries. A few of us even have skills in both the analogue and digital domains!

We have met on numerous occasions for “face to face” meetings over weekends and held weekly Skype chats almost every Sunday evening. We have had highs and lows along the way but the end result – FUNcube-1 our tiny spacecraft is now sitting in an ISIPOD on the launch vehicle ready to take its chances in space on Thursday.

FUNcube-1 flight model - Image credit Wouter Weggelaar PA3WEG

FUNcube-1 flight model – Image credit Wouter Weggelaar PA3WEG

Many hours of evaluation and verification testing of both the Flight Model and also the earlier Engineering Model have been undertaken, so we are as confident as we can be that we have done the best job possible.

This mission could not have been carried forward without the efforts of the team members but neither could it have been completed without the tremendous support that it has received from individual radio amateurs and others and other AMSAT groups around the world.

Thursday, November 21, 2013 is our launch day and most of the team will be assembled at the National Radio Centre at Bletchley Park to staff a monitoring station for at least the first two days following the launch. The launch from Yasny takes place at 07:10:11 UT with live TV coverage available here. The first signals from FUNcube-1 should be heard in Southern Africa and then in Hawaii and then Alaska. After that, we hope to hear signals in the UK on a very low pass to the east around 08:50 UT.

National Radio Centre We are very grateful to the RSGB for their support in allowing the use the NRC facilities which should be perfect for this operation.  Although it is not large enough to be able issue an open invitation to everyone to join us on the day, we will be trying to do our best to keep everyone in touch with what is happening.

We will be setting up a webstream from the NRC using the services of the BATC.tv server http://www.batc.tv/ch_live.php?ch=3  This should be available from around 07:00 UT on Thursday and will keep running for as long as we have something to show. As well as shackcam views it will also have a breaking news “tickertape” and some videos created during the development of the spacecraft.

AMSAT-UK FUNcube Mission Patch Rev4 20100609

AMSAT-UK FUNcube Mission Patch

Additionally we will maintain a presence on the #cubesat IRC channel which can be easily accessed by a web client from here: http://webchat.freenode.net/

Of course this website will also be kept up to date as possible and updates will be provided on AMSAT-BB.

So all we ask everyone to do now is to, download the FUNcube Dashboard, read the guidance notes, register with the Data Warehouse and hang on for an interesting Thursday. Oh and keep your fingers crossed.

Very many thanks for your support!

Team FUNcube

Live TV coverage of launch http://live.cput.ac.za/live.html

FUNcube Yahoo Group https://amsat-uk.org/funcube/yahoo-group/

Official opening of National Radio Centre https://amsat-uk.org/2012/07/11/official-opening-of-the-rsgb-national-radio-centre/

ISS CubeSats Deploy Tuesday and Wednesday

Pico Dragon CubeSat - Image credit VNSC

Pico Dragon CubeSat – Image credit VNSC

Four CubeSats carrying amateur radio payloads will be deployed from the International Space Station (ISS) by the JEM Small Satellite Orbital Deployer (J-SSOD). Three of them, Pico Dragon, ArduSat-1 and ArduSat-2 will be deployed on Tuesday, November 19, and the fourth Cubesat, TechEdSat-3p, will be deployed Wednesday.

The CubeSats:
Pico Dragon developed by the Việt Nam National Satellite Center (VNSC), University of Tokyo and IHI aerospace. 437.250 MHz CW beacon and 437.365 MHz 1200 bps AFSK AX.25 telemetry.
ArduSat-1 developed by NanoSatisfi. 437.000 MHz 9k6 MSK CCSDS downlink.
ArduSat-X developed by NanoSatisfi. 437.345 MHz 9k6 MSK CCSDS downlink .
TechEdSat-3 developed by interns at the NASA Ames Research Center. 437.465 MHz 1200 bps packet radio beacon transmitting 1 watt to 1/4 wave monopole. It plans to test an Iridium Satphone modem and has a deployment mechanism to de-orbit in 10 days.

They are 1U in size (10*10*10 cm) except for TechEdSat-3 which is 3U (30*10*10 cm).

As well as the ISS deployment next week also sees two mass launches of satellites on Minotaur-1 and Dnepr rockets. In total 37 satellites carrying amateur radio payloads are expected to be deployed next week. The frequencies of these satellites can be seen at
https://amsat-uk.org/2013/11/13/three-amateur-radio-satellite-deployments-in-november/

NASA http://www.nasa.gov/content/expedition-38-wraps-up-first-week-on-station/

Australian Foundation licensee Jonathan Oxer VK3FADO talks about the ArduSat satellites that he helped develop in this video
https://amsat-uk.org/2013/09/15/eevblog-ardusat-arduino-cubesat/

Brazilian APRS Balloon Launches Sunday

PV8AA_placa_gpsThe Liga de Amadores Brasileiros De Rádio Emissão will launch an APRS balloon PV8AA-11 on Sunday, November 17 at 1000 UT. It is expected to reach at altitude of 23 km and will transmit on 144.300 MHz CW and 145.570 MHz packet.

Radiosonde PV8AA – 11
PWR : 500mW
Antenna 1/4 wave .
Battery: Lithium Polymer 7.2V x 1.7 – Test duration : 11h
QRG Coordinates: 144.300 MHz CW Telemetry : 145.570 MHz Packet

Elevation data , internal and external temperature , battery voltage , number of transmission and satellite – GPS .
Balloon : 1m30cm/350gramas . Holds average of 3 cubic meters of Gas
Experiment : 315 grams + parachute rope : 75gramas
Maximum anticipated altitude : 23 km, rate of climb and descent : 5-6 m / s approx .

Local Release : 2 ° 50 45N 60 ° 41 56 W – Facilities EMA – BV .

Monitoring by SITE http://www.aprs.fi/ PV8AA – 11

Listener Report please send to : pv8aa at hotmail.com or pv8dx at arrl.net