Sunday, October 31, 2010
Saturday, October 30, 2010
I found a MaComm DU2880V transistor at a local hamfest for $10. I've decided to use that as the final output PA. This transistors is a dual mosfet, capable of providing 80 watts at 2-175 Mc. I've built up a pa from this by swamping the input gate impedance and using broad band transformers on the input/output. Getting about 70 watts out with 1 watt of drive.
Wednesday, October 20, 2010
Sunday, October 17, 2010
Tuesday, October 12, 2010
DIY Phased Array Radar to be presented at the 2010 IEEE International Symposium on Phased Array Sys. & Tech.
I will be presenting this DIY phased array radar system this week at the 2010 IEEE International Symposium on Phased Array Systems and Technology, in Waltham MA.
Tuesday, October 5, 2010
home-brew SSB transceiver transmitting about 20 watts into a half-
The radio still needs a few additional things done to it including an
accurate TX power meter (to verify that i am transmitting :) and an
RX AF chain mute while transmitting.
Surprised at how easy it was to make this contact this morning. It
is very exciting to build something from scratch then get it on the
air with a successful contact!
Saturday, October 2, 2010
Free student event: learn about phased array antennas and systems at the IEEE Symposium on Phased Array Sys. & Tech, sign up now!
Are you a student who is interested in learning about phased array systems, what they are, how they work?
The IEEE is trying to encourage young people to study engineering as a profession, as a result many of our interesting conferences like this one are offering 1-day student events free to anyone.
The event is free, it includes lunch and a lecture by Eli Brookner, who is well known in the field of phased array radar systems and a great speaker. After lunch the students will get to see the symposium welcome speech by Mark Russell, and keynote by Dennis Picard. Finally, students will get to meet with companies, talk to engineers in the field, and meet other students who are studying antenna arrays in grad school.
As you might guess, it's not easy getting attendance levels up for something as specific as phased array antennas, or even raising awareness of how much fun phased array engineering can be as a career path.
student event flyer:
student event schedule:
To register, go here:
Please encourage any students or student groups that you know to check out this unique and free event. Looking forward to seeing you at the Phased Array Symposium!
Chair AP-S Boston Chapter