I've been trying to find out what antenna on the aircraft is used for the ADS-B Out. From what this says, the same S Mode transponder antenna can be used. It also recommends the use of 2 antenna, one on top and one on the bottom of the aircraft. The top mounted antenna is not mandatory, however in my opinion it should be, if they have plans to track aircraft by ADS-B satellites.
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FAA's ADS - B Installation Guidance
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FAA's ADS - B Installation Guidance
I've been trying to find out what antenna on the aircraft is used for the ADS-B Out. From what this says, the same S Mode transponder antenna can be used. It also recommends the use of 2 antenna, one on top and one on the bottom of the aircraft. The top mounted antenna is not mandatory, however in my opinion it should be, if they have plans to track aircraft by ADS-B satellites.Tags: None
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One of these works just fine:
Or you could spent more and install one of these:
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Originally posted by t-kclt2 View Post
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Two questions:
1. How do the FAA track planes mid ocean (satellite, buoys, other)?
2. Why does the FAA data plot 'avoid' the t- plots from Ireland (do the FAA not capture the data, do they not share the data or does FR24 avoid plotting the FAA data)?
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1: Have a look at: http://www.youtube.com/watch?v=EJTjwW5ZYas - Trackwise - Targeting Risk Within The Shanwick OCA - Complete Video
Extra informational links:
2: no idea.
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Originally posted by peterhr View PostTwo questions:
1. How do the FAA track planes mid ocean (satellite, buoys, other)?
I'll see if I can make a short video of it in action for you.
...DOUG
KD4MOJLast edited by KD4MOJ; 2013-11-01, 16:26.
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Originally posted by KD4MOJ View PostHigh Frequency Data Link (HFDL) is one method... I have a program on my computer called PC-HFDL that captures the packets from my HF rig and displays them via google earth. There are programs such as Plane Plotter also displays this info. Instead of using 1090, there are various frequencies used between 5Mhz up to 28Mhz or thereabouts.
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Originally posted by peterhr View PostI wonder if we can capture that for FR24 - using an R820T dongle
The R820T dongles usually have a low frequency limit about 54~60 Mhz, for receiving signals below that limit you need a up converter like this:
http://www.nooelec.com/store/softwar...ned-radio.html
http://www.rtl-sdr.com/tag/upconverter/
http://blog.kf7lze.net/2012/09/14/ro...erter-choices/
Note:
I'm not related to any of those providers
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Originally posted by peterhr View PostTwo questions:
1. How do the FAA track planes mid ocean (satellite, buoys, other)?Michael
Palmerston North,
New Zealand
ex-FR24 Feeder
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