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mike_s

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About mike_s

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    RC-Cam Visitor
  1. http://myauntishot.com/2009/full-scale-air...and-helicopters So I had my basic idea down. iPhone joins the Linksys router network. It gets an IP address. Then, I open up my pilot program. The pilot program interfaces with the router via SSH (I couldn’t think of a better way that has redundancy, and speed, and was already buily by someone else). The pilot program interprets what the iphone is doing, and outputs data to one of the ethernet ports of which there are conveniently 4. Rudder, Ailerons, Throttle, Elevator. Finally, you may ask how the servos are being driven. Well, routers are u
  2. After failing to get the Q&D "antenna interface" [url=http://www.rc-cam.com/forum/index.php?showtopic=2718] working, I'm starting to try to design /research the basics of a 72.990 receiver front end /interface for my Futaba T6xAs to connect to the soundcard (mic or linein) inputs for use with a software oscillocope So far, I've found information on calculating the values for a resonant circuit, and have wound a coil and put a trim cap on a breadboard. For the coil I wound 12 turns of #26, which should be ~ 1uh according to this calculator I have a 2-30 pf trimcap. So I guess th
  3. "The frequency range depends on the sound card, but 20-20000Hz should be possible with all modern cards. " Ok, 79.90 mhz is a "bit" higher than 20K , but wouldn't the signal show up as "aliased" ? (Possibly on a "real" scope, rather than soundcard/sofware one ....if there is a difference. If not, then if transmitter freq was ~15 - 20K, would anything be conducted? I.e. is it possible to directly connect to the antenna? Mike
  4. Greetings, As will become obvious as you read this post, I'm a beginner with electronics. I've done some simple experiments with breadboards, TTL IC's, passive components, and I know some of the very basics about d.c. and a.c. theory, but even a fairly simple circuit / principle can quickly get me "dazed and confused." I have a Futaba T6xAs transmitter and I am interested in viewing the transmitted waveforms on a p.c/soundcard oscilloscope. Actually, I'm interested in viewing the output of other circuits that I want to build as well, but I thought I'd start with something already b
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