Voltage Doubler Circuit

Posted on Feb 5, 2014

Project Manager Jim Heck G3WGM has given an exclusive audio interview to the TX Factor s Bob McCreadie G0FGX which explains what the tests are all about and the potential problems. 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

Voltage Doubler Circuit
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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 The MO-76 $50sat amateur radio satellite team is pleased to announce that the PICAXE based $50sat was chosen as Project of the Month by Bath based Revolution Education who supply PICAXE microcontroller development systems. $50SAT is one of the smallest amateur radio satellites ever launched at 5x5x7. 5 cm and weighs only 210 grams. Transmitter power is just 100 mW on 437. 505 MHz (+/-9 kHz Doppler shift) FM CW/RTTY. It uses the low cost Hope RFM22B single chip radio and PICAXE 40X2 processor. $50SAT was a collaborative education project between Professor Bob Twiggs, KE6QMD, Morehead State University and three other radio amateurs, Howie DeFelice, AB2S, Michael Kirkhart, KD8QBA, and Stuart Robinson, GW7HPW. INVADER is an amateur radio Art Satellite  developed by students at the Tama Art University as a part of the ARTSAT: Art and Satellite Project  which aims at a practical use of a satellite for art and design. The 1U CubeSat was launched from the Yoshinobu Launch Complex at the Tanegashima Space Center on Thursday, February 27 at 1837 UT. It carries a CW (A1A) beacon on 437. 325 MHz (+/- 10 kHz Doppler shift), a 1200 bps FM AX. 25 Packet Radio and FM Digitalker on 437. 200 MHz and a low-resolution camera. A very good set of...

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