"http://diydrones.com/profiles/blogs/skywalker-x8-instructions-parachute-system"
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Geoffrey Preston
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- Twentynine Palms, CA
- United States
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Geoffrey Preston's Discussions
Antenna Refence Material
Started this discussion. Last reply by james sowell Feb 3. 1 Reply 0 Likes
Here are a few links for antenna theory and a link to Ham Radio Outlet where you can purchase ARRL Hand Books, you couldn't find a better resource than the Amatuer Radio Relay League books.…Continue
Antennas Gets Its Own Forum Section
Started this discussion. Last reply by james sowell Jan 17. 7 Replies 6 Likes
Chris Anderson has added this forum section for all topics related to antennas and radio transmission.This will be a great place to see which antenna systems work and which dont work so well. You…Continue
Using Ardustation in a UAV to point a small directional antenna at the groundstation
Started this discussion. Last reply by Geoffrey Preston Oct 9, 2012. 2 Replies 0 Likes
Would it be possible to use ardustation mounted on board my UAV instead of using it as a ground station to turn an onboard servo so that it always pointed to my home location? The intent here is to…Continue
Wanted APM1 2560 already soldered, no mods
Started this discussion. Last reply by Geoffrey Preston Aug 8, 2012. 3 Replies 0 Likes
Need an already soldered APM1 2560 (vision problems preclude soldering).No mods, or clones. Fully functional. Already have the Oilpan. Let me know what you have.Continue
Geoffrey Preston's Page
Latest Activity
james sowell replied to Geoffrey Preston's discussion Antennas Gets Its Own Forum Section"been kinda slow on here, what are you working on geoffrey?"
Geoffrey Preston replied to Paul's discussion reverse antenna tracking by GW4LWD"Sounds great! I had been collecting parts wanting to try the same thing for my fixed wings. Can you share a bit more detail of your set up in in the ground station. I had realized early on that this will work only if you do a simple flight path.…"
Edge23 commented on Geoffrey Preston's blog post Antenna Alternatives"Thanks jake, it doesnt seem that hard. Hopefully it will work"
Jake Wells commented on Geoffrey Preston's blog post Antenna Alternatives"Hi Edge,
This is a list of all of Alex's tutorials. Hope they help you come up with a solution. http://www.rcgroups.com/forums/showthread.php?t=1328609"
Edge23 commented on Geoffrey Preston's blog post Antenna Alternatives"@ Gisela & Joe Noci
i have an epp flv plane and i bought the same xbee pro868 module with a wire antenna and stock antenna on ground. İ have terrible range 300 m maximum. İ dont have a working knowledge of antennas. Can you direct me where i can…"
Geoffrey Preston commented on Khurram's blog post 5 Mega Pixel 1080p 30fps Wifi/IP camera from China" Totally exposed circuit boards, a lens mounted directly to a circuit board instead of a hardshell case. What could possible go wrong in a crash."
Geoffrey Preston commented on Nick Goodey's blog post Raztech Hall Effect Current Sensors"@ Randy
AttoPilot voltage and current sensor is available at Spakrfun
https://www.sparkfun.com/products/9028
These hall effect sensors look like good alternative if you have a way to calibrate the output."
Geoffrey Preston commented on Heino R. Pull's blog post Using a Remzibi OSD with Arducopter 2.0.x Beta (and now Arducopter 2.7.3/2.8) and Mavlink 0.9/1.0"I am guessing this is will work with Ardupilot as well?
Glad to see you identify your transmissions with your callsign.
KB6WSQ"
Geoffrey Preston commented on Hex Air Robot's blog post What's going on about HeX recently"Not exactly on topic but I do appreciate your artistic documentation."
Nick Goodey replied to Geoffrey Preston's discussion Antennas Gets Its Own Forum Section"Many thanks Geoffrey
Appreciate the input on the clover leaf, I did a radio and TV course 30 years ago but I'm so rusty on antenna's and the like I suppose for the 2.4 Ghz the wave length would require the Clover Leaf too bulky having…"
Geoffrey Preston replied to Geoffrey Preston's discussion Antennas Gets Its Own Forum Section"@ Nick
Like the boat! Probably due to the size of your boat there isn’t much you can do to increase antenna gain there. You could try a clover leaf set up for the 5.8 ghz video where you have one on each end of the transmission.…"
Nick Goodey replied to Geoffrey Preston's discussion Antennas Gets Its Own Forum Section"I have been tinkering with some FPV hardware and Xbee's wondering if my Antenna could be improved and made lighter also.The supplied antenna on the 5.8Ghz TX is smaller as I would expect I'm not sure what gain it…"
Geoffrey Preston posted a discussionAntenna Refence Material
Here are a few links for antenna theory and a link to Ham Radio Outlet where you can purchase ARRL Hand Books, you couldn't find a better resource than the Amatuer Radio Relay League books.http://www.antenna-theory.com/basics/main.html http://www.mobilemark.com/engineering/antenna-theory-simplified.html…See More
Profile Information
- About Me:
- QC manager for Gov construction projects. Ham radio operator,KB6WSQ. Lifetime interest in radio and electronics.
Professional Photographer.
- Tell us a bit about your UAV interest
- Arduplane. FPV. Search and Rescue.
- Hometown:
- Twentynine Palms, Ca.
Geoffrey Preston's Blog
More Antenna Alternatives
Posted on October 7, 2012 at 8:30am 9 Comments 1 Like
Came across this great product for antenna building for UAV's. Adhesive backed copper foil 5 mm wide. Great for creating your own dipoles, vee's or helix, easily soldered. Attach it to fiberglass or plexiglass or directly to the foam (prepped with acrylic spray to help adhesion or just taped over with…
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