While watching your page, what is the most aircraft you seen at one time? Here in Tucson, I happened across 114 aircraft.
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171 aircraft in the sky this morning in Amsterdam Netherlands
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Peak around lunch time today, here in Odessa, TX, was 173. Right now 119 (21:26Z)
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Here in UK West Country it is not unusual to see 250+ but there is very little activity between 23:00 and 07:00 so our daily totals are well down compared to US. Also there is a massive seasonal difference. Here’s my last 30 days:
I do find that the AirSpy mini receiver handles the volume of data better than a ProStick Plus, especially on very busy days when the number of aircraft and interogations cause the data rate (on the latter device) to approach 2000 message/sec.
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I’ve got a screenshot from 2019 that shows 592 aircraft…
It’s 360 ish right now. Remember, I’m in a very good location.
http://g6nhu.getmyip.com:1085/tar1090/
Here’s the last three years.
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If you ever want to sell your house, advertise it here first… you will get +50k for sure hah …
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Here on the high plains of Colorado (5V4), and using the small wire antenna supplied with the FA kit, I was getting 165 1090 aircraft.
On February 6th, I installed the FA 978 &1090 antennas, with LMR240 coax, and the most I’ve seen on 1090 since then was 204.
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Once winter is over enough to safely work on the tower, I’ve got a 60 foot run of 5/8 inch Heliax to install (thanks to a decommissioned terrestrial point to point 5 ghz microwave link that was on a 400 foot tower) with N connectors, and a plan to use a single antenna for 1090 ADS-B and 978 UAT, then split, filter / LNA the separate signals downstairs. This should see well over vegetation and the new construction boom in the area.
I think the Heliax has a low enough loss and noise that downstairs filtering / LNA won’t just amplify noise.
The combined antenna is just 1/4 wave halfway between 1090 and 978 made from a piece of solid AWG-12 wire soldered into a bulkhead N connector.
This size Heliax is quite stiff so I’ll probably let it support the antenna about 6 to 8 inches above the top of all the HF and VHF antenna hardware sharing the tower, weatherproof the connector with Coax Seal, and check the actual passband to be sure everything is working properly.
The Pi will get relocated to a weatherproof NEMA box at the bottom of the tower, where the filters and LNAs will end up. Then we’ll see if that improves the overall performance.
I do have lightning arrestors on everything. For any tall antenna installation, it’s recommended one acquire a current edition of the Bonding and Grounding handbook, to protect your equipment.
another source:
Also recommended if you want to build fairly low cost PiAware antennas that perform quite nicely:
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