Tag Archives: 70CM

Science Alive! 2013 Flyer

Science_Alive__2013_flyer_front

Download the flyer and print it off and pass around to friends, family, etc and hope to see you there.

Organisation involved
University of Adelaide
Dept for Manufacturing, Innovation, Trade, Resources & Energy
Flinders University
University of South Australia
Forensic Science SA
BAE Systems Australia
Australasian Radiation Protection Society
The Curiosity Show
Australian Institute of Food Science and Technology (SA)
Coastal Concepts
Engineers Australia
Goyder Institute for Water Research
SA Water
SARDI
The Australian Society for Medical Research
South Australian Neuroscience Institute (SANI)
Australian Science and Mathematics School
Novatech
Royal Australian Chemical Institute
Reef Watch
bugs n slugs
Nature Education Centre
Arid Recovery
Animals Anonymous
Elizabeth Amateur Radio Club
Hackerspace
Giant Games
Vital Veggies
VACANT
Astronomical Society of SA
Voxiebox
Nutrition Society of Aust
Growing More Than Trees Project
Malacological Society of SA
Microscopes and More
The Young Scientists of Australia, Adelaide Chapter
CSIRO Education (Friday)/Double Helix (Sat & Sun)
Science Alive! Showbags (Saturday & Sunday only)
Institute of Backyard Studies
The Fly
Dan Burt the Pianola Man
SciWorld
Australian Dalek Builders Union
Imagine If
Physical Prints (3D printing)
Adelaide Electric Vehicle Association
Plaster Fun House
Adelaide Magic
ZigZag Circus
ANSTO
The Beer Show (Friday Night)
Jesse Deane-Freeman (Friday night)
Deane Hutton’s Magic Show (Friday night)
Rob Morrison’s Jazz Septet (Friday night)
SciWorld Stardomes
Robotics Workshops (Uni Adelaide & Flinders Uni)
YSA Buskers
Solar Panel Tours

Project Space Balloon Launch

Project Space Balloon has a balloon launch planned for this Saturday the 6th July 2013 from Bendigo Victoria.

Hi all,

FYI, our project team is planning to release a high altitude balloon from Bendigo this coming Saturday 6th July 2013 at 11am.

We will have an onboard camera sending images back via SSDV (http://ukhas.org.uk/guides:ssdv), which is basically broken up JPEG with some extra headers.

RTTY will be used for radio transmission.

We do not expect to recover the balloon, and will appreciate any assistance with getting data from the payload along the path, in Victoria, Southern NSW, ACT, and Tas. See attached expected path.

All you need is a radio capable of receiving SSB at 434.650MHz, and a Mac/Windows/Linux computer with sound card input and access to the internet. High gain antenna is highly desirable.

See instructions here: http://projectspaceballoon.net/ssd/

The other details are:

– Frequency 434.650Mhz (+-10Khz), USB

– RTTY with 460Hz shift, 300 baud, 8 bit ASCII, no parity, one stop bit.

– Hardware is a Rev A Raspberry Pi, with a 25mW UHF transmitter module.

– Antenna is a quarter-wave with radials.

– Expected “cruising” altitude is 20km.

You will be able to see the images on your computer if you can receive the RF signal directly.

If internet access is available the images can be uploaded to the internet for others to view.

Tracking (from distributed listeners like yourselves) will be available at http://spacenear.us/tracker Images will be available at http://ssdv.habhub.org

The call sign for tracking and SSDV is PSBPI.

We plan to have someone in #highaltitude chatroom on irc.freenode.net on the day to co-ordinate.

Thanks in advance for your help.

Regards.

Andy VK3YT

Reference:
Project Horus

VK5RLZ 70cm Repeater

As of yesterday the 3 of July 2013 the VK5RLZ 70cm repeater now requires a 91.5Hz CTCSS tone for access it. There is no CTCSS tone on the output only the input, but this may change in the future.

Green drawing pin denotes the location of the repeater at the Elizabeth Water Tower

Science Alive! 2013

About:
Australia’s largest science expo event with spectacular science, animal and magic shows and a huge range of hands-on fun for all ages. Archaeology and antiquity, Human body and movement, Energy and transport, Environment and nature, Health and medical, Space and astronomy, Innovation and technology

Where:
Goyder Pavilion Adelaide Showground, Goodwood Road, Wayville, SA, 5034

When:
Friday 9th August – 9am-3pm Careers Day for high school students and their teachers
Friday 9th August – 5pm-7pm National Science Week Launch, Goyder Pavilion
Friday 9th August – 7pm-11pm Science Alive! Cabaret, Goyder Pavilion
Saturday 10th & Sunday 11th August – 10am-4pm Science Alive! public event

for more info refer to:
http://www.scienceweek.net.au/science-alive/

As part of a booth organiser for the Amateur Radio & Electronics booth this year we are planning to be more hands on and are going to have a remote station that we’ll have access to in country Victoria we can us to access and transmit on the 40m band via the internet, which we’ll allow the public to make contact with other stations to get a first hand fell to what one aspect of amateur radio is about.

Also hoping to have some IRLP action going to via the VK5RAD 70cm repeater.

Update: Project Horus Launch 15/06/2013

This some screen shots put into a video showing PicoHorus-3 flight that was launched approx 1000 ACST the 15th June. This is from my point of view as a listening ground station based on the north side of the Adelaide CBD.

At approx 0800 ACST the 16th June PicoHorus-3 ran out of battery power and stopped broadcasting telemetry and now categories as unknown and lost, but if you happen to find its playload please contact the great people at Project Horus

Quick video showing the reception of Horus from my QTH

Project Horus Launch 15/06/2013

Email that came across letting know that there be a Balloon launch this weekend. Check Spacenear.Us in the morning (15/06/2013 1000hrs ACST) to get the frequency if you like to help with tracking.

Update 14/06/2013 18:44
Confirmed freq is 434.150MHz

Hi all,

This Saturday Mark is going to have another shot at a pico floater launch, though instead of a foil party balloon, he’ll be using a 100g latex balloon.

Launch will be at approx 10am local time.

Mark’s aiming for a <1m/s ascent rate, which should float it at 20km altitude. The float prediction has it floating to the south of Mildura, before continuing along the border towards Wagga Wagga, then on to Sydney. Much like Horus 16, but at about half the altitude.

We’re looking for listeners in both Mildura and Wagga Wagga – if anybody has contacts in these areas, please pass the message on.

The frequency and baud rate of the launch haven’t been decided yet, but the information will be on the http://spacenear.us/tracker/ page at the time of launch.

All the best,

Mark & the Project Horus team.

Project Horus

VK5 Local Beacons

If your interested in testing the at accuracy of you your transceiver on 6/2/70/23/SHF there are beacons setup in around Mt Lofty (VK5VF) and the Elizabeth Water Tower (VK5RLZ) which you can listen to and they are on the following frequencies

VK5VF
6m = 53.3200 GPS locked
2m = 144.4500 Crystal locked
700mm = 432.4500 GPS locked

VK5RLZ
230mm = 1296.4520
SHF = 2403.4520
SHF = 3400.4520 proposed
SHF = 5760.4520 proposed
SHF = 10368.4520 proposed
SHF = 24048.4520 proposed

The GPS locked beacons accuracy will be in the order of 1000th of a hertz

Dual Band (2 Meter & 70 cm) Solid Aluminium J-Pole

This is what I have been up to for the last week or so, building this dual band antenna out of solid aluminum, I have used 10mm solid aluminum rod, and 40mm x 40mm x 3mm angle strut for the base and the driven element connected via SO239 3/8″ stud mount.

I am very happy with the performance of the antenna and the SWR of it. and it was a hell of a lot cheaper than buying one, and more fun :-P

And if you are interested in me making one for you, head on over to my contact page and send me a message

Wouxun KG-UVD1P Dual Band HT

I bought one of theses Wouxun dual band HT off of eBay a month back for bit over 100USD which amounted to around 99AUD. The unit didn’t come with any extras like 1700mA battery or USB programming cable as sold by others on eBay.

Down side is the HT is pita to program off of the keypad till you get used to it, altering power setting etc to a channel already saved is a pain as you have to delete the channel and re enter it. I ended up buying a USB programming cable off of eBay for the HT and it makes the programming of the HT a lot easier and faster. The other is the SMA Female antenna connection, as if you want to use a external antenna you have to make or buy SMA female to BNC female adapter, which are also sold on eBay for couple dollars each.

As I use Linux, I have been lucky as there is a Linux program called OWX, which is a command-line program for programming the KG-UVD1P and others. As I didn’t do the make install part of the compile/install of the OWX program, here is an example of how I use the program to do what is explained in the OWX documentation.

./owx -c check -p /dev/ttyUSB0
./owx -c get -p /dev/ttyUSB0 -o radio/original.bin
cp radio/original.bin radio/backup.bin
./owx -c export -i radio/original.bin -o vk5-repeater-list.csv
cp radio/original.bin radio/vk5-repeater-list.bin
./owx -c import -i radio/vk5-repeater-list.csv -o radio/vk5-repeater-list.bin
./owx -c put -p /dev/ttyUSB0 -i radio/vk5-repeater-list.bin -r radio/backup.bin

Overall the Wouxun KG-UVD1P is a rather good and not bad for the monies, feels sturdy and comfortable to use, it be a good starting out HT for beginners to Amateur Radio. I would also recommend if getting this HT to get it with the USB cable and the 1700mA battery.

References:
Programming the Wouxun KG-UVD1P – this make programming the from the keypad a lot easier to understand well worth the read.
Open Wouxun (OWX) – Linux command-line program
VK5 2M/70CM repeater list for KG-UVD1P – CVS file to used with OWX