Geoffrey Preston
  • Male
  • Twentynine Palms, CA
  • United States
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Geoffrey Preston's Groups

Geoffrey Preston's Discussions

Antenna Refence Material

Started this discussion. Last reply by james sowell Feb 3, 2013. 1 Reply

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

Tags: resource, antenna, Antenna

Antennas Gets Its Own Forum Section

Started this discussion. Last reply by james sowell Jan 17, 2013. 7 Replies

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

 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

 

Geoffrey Preston's Page

Profile Information

About Me:
QC manager for Gov construction projects. Ham radio operator,KB6WSQ. Lifetime interest in radio and electronics.
Professional Photographer.
Please tell us a bit about your UAV interest
Arduplane. FPV. Search and Rescue.
Hometown:
Twentynine Palms, Ca.

Geoffrey Preston's Blog

If This Is Real.....WOW!

Posted on March 2, 2014 at 1:00pm 19 Comments

 R/C helicopter lifting a woman!

If this is real then it's quite a feat. Not to mention very dangerous.

I'd like to think that this is more than just great photoshop…

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Controlling Radio Frequency Interference

Posted on February 27, 2014 at 12:30pm 2 Comments

RFI is often a very frustrating problem but the following information may be of help. You may have RFI and be unaware of it and following these precautions might increase your range.

If possible keep your wire/cable runs away from transmitters, coax and antennas. Never group coax cable together with wiring runs. Use shielding for your wiring runs and if possible grounded metal enclosures for sensitive electronics. Be sure your coax…

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Mini DC-DC Voltage Stabilizer/Regulator Module

Posted on September 11, 2013 at 8:30am 15 Comments

  Ran across this and just wanted to share. Great for getting all the different voltages of your components to operate off of

one source. One module per each different voltage requirement, small and light weight. Adjustable for input voltage and output voltage and only $3.80 US…

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More Antenna Alternatives

Posted on October 7, 2012 at 8:30am 9 Comments

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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Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here

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