Demonstration of Aircraft Reflections on 900 mhz.MOV

This video shows me attempting to access my 900 mhz repeater using aircraft reflection. Direct line of sight was not possible due to the mountainous terrain in the distance. I tried this technique with about 4 large commercial jets and one small business jet. All the aircraft was moving from my left to right and at the intercept point, the repeater would come up via my 900 mhz signal bouncing off the aircraft skin. Since the aircraft were moving left to right and were only in the "Sweet" spot for a very short time, the repeater would go into the noise within and 2 seconds. Had the aircraft been approaching my location head on, I believe the repeater would have been strong for a much longer period of time. This really works.

Update: I have tried this a few more times, and have found even aircraft up about 5 miles with contrails and at the right intersection between my location and the repeater, will bring the repeater up. It really is amazing to be able to do this. Pinging off aircraft.

K2WH

Category:

Science & Technology

Tags:

• Motorola
• Spectra
• 900 mhz

[syntorx9k]

@yellowdart137 It's called the field effect. Being several feet away from the equipment is vastly different than being several thousand feet away.

[oregonninetwentynine]

That is pretty awesome!

[yellowdart137]

you know how i know all that shit about aircraft and RF is bullshit? well here's your sign. oh and radar.

although i support keeping phones off while on planes. we still need some cell free areas.

[WTurbiasz]

Nice Spectra

[starbuck5250]

Aircraft scatter is wicked cool. Nice demonstration, 73 de KC2HIZ

[Ocnila]

That is pretty cool. Thanks for posting. KR8U

[KB1GXM]

33cm is so cool! I wish I could build my own 900 mhz repeater but I am a non technical ham.