Sunday, January 6, 2013
Sunday, December 30, 2012
Quadrantids - 2013
First and one of the three most powerful meteor showers of 2013 year. Starts at December 28 2012, with peak at night of January 3, 2013.
Velocity: 41 km/s
ZHR = 120 meteors/hour (may vary 60-200)
Radiant coordinates: RA = 230.0 Dec: 49.0
Check here, Quadrantids will show up coming days.
Wednesday, December 26, 2012
SSA Jultesten 144 + 432MHz
Participated Jultesten today. No contacts on 432 MHZ and several SSB contacts made on 144MHz. So far it is the same result as last year, hi hi!
This year I used 6 el ultralight DK7ZB Yagi on 2 m boom, since my old SAT yagi is broken. It works fine on 70cm also so there is an opportunity to work on SSB and SAT frequencies. I have another 2m alu pipe and will try to stack 2x6el yagis, as soon as I find good support mast..
This year I used 6 el ultralight DK7ZB Yagi on 2 m boom, since my old SAT yagi is broken. It works fine on 70cm also so there is an opportunity to work on SSB and SAT frequencies. I have another 2m alu pipe and will try to stack 2x6el yagis, as soon as I find good support mast..
Friday, November 16, 2012
HAM SAT to flash morse code
On Christmas Eve (Dec. 24) the Japanese students who built FITSAT-1 are planning to activate the satellite's LED optical array and flash a message in Morse Code to Earth. The Morse message may be visible with the unaided eye. (Project web-site)
Thursday, November 15, 2012
Wouxun KG-UV6D - First impression
Since my 2 meters handy Rexon RL-102 was too old and not in good condition, I decided to buy something new, like VHF/UHF handheld with DTMF and CTCSS. After reading the reviews of radios, I choosed Wouxun latest model KG-UV6D. This radio was praised for good voice quality of the speaker and attractive price. Well.. it was very easy to find a sellers of this radio at InterRadio, but quite difficult to buy it because of long queue!
Friday, November 9, 2012
Android Bluetooth Oscilloscope
ProjectProto's oscilloscope. Great project! Schematic, Project source codes for Android and dsPIC available on their website. I'd love to build one for myself :) Many features could be added to make a real oscilloscope from this
(triggerring, data storage, etc) Of course, bandwidth will be limited to
1MHz, but this is enough for audio signals... Or build Android-based multimeter.
Thursday, November 1, 2012
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