dump1090-fa
made a change, but appears to be overwritten.
DECODER_OPTIONS=“–max-range 360”
NET_OPTIONS=“–net --net-heartbeat 60 --net-ro-size 1000 --net-ro-interval 1 --net-http-port 0 --net-ri-port 0 --net-ro-port 30002 --net-sbs-port 30003 --net-bi-port 30004,30104”
JSON_OPTIONS=“–json-location-accuracy 2”
RECEIVER_OPTIONS=“–device-index 0 --gain 48 --ppm 0 --net-bo-port 30005 --fix”
@BE35G,
Not sure what you should do other than checking the /etc/default files.
My replacement 978 Mhz Hab/Nevis Amps are still stuck in LAX (for a week).
So, I thought I would give the FA Pro-stick a go.
I connected it for a couple of hours and got nothing.
I added the FA Filter and wooh, lots of hits even with the gain dialed back to 40db.
It would be nice to have a decent cavity filter but at least I can get something to work.
Thanks jonhawkes2030
I just went back to piaware 3.1.x and dump1090-multi. I really liked the 1090-fa web interface, some cool features, but I want to see and feed UAT/978. Maybe 1090-FA, in the future will support UAT, or at least allow a feed of UAT. As we get closer to 2020, UAT will get larger and larger. I know my plane is going to be UAT in 2017.
On Soap Box
"Daniel Baker … was a newly minted private pilot flying Cessna 172s around the country. "I wanted my friends and family to be able to track my flights just as they could if I were flying on a commercial airline,” explains Baker. “I may have been piloting the aircraft myself, but I still needed a ride once I landed. There were a few commercial products that provided this service for around $1,000 a month, but that wasn’t a realistic solution for friends and family…”
The posts I have read about UAT from FA, dismisses UAT. As an airplane owner, with mode C transponder, UAT is the cheap, and most beneficial way to comply with the ADS-B mandate. Get weather and traffic…
Off Soap Box
Again, Thanks everyone for making this stuff work, it is cool!
To be fair, there are many more 1090 decoders(software and hardware based) than uat 978.
dump1090, modes deco, radarcape, Mode S Beast, SBS1,2,3, puck 1090, trilby hat, Blade RF, airspy, rtl1090, sdrplay, plane plotter etc.
32 software packages come up on github.
I can only find one decoder for UAT 978Mhz on the Internet.
Also, the market is small. Only the USA is rolling out UAT 978, only were Mode C is currently required, less than A180. The due date is Jan 1, 2020. Actually, this is only half true as 1090 ADS-B can also be used to satisfy the requirement.
Also, I think that the FA market is largely commercial and airline transport aircraft.
ADS-C and other satellite based receivers may simplify a lot of the 1090 reception in the future.
I hope that UAT 978 will take off (the benefits of free weather and other FIS-B services should help).
I doubt it will be worth the money the decode UAT 978 using satellites so ground services will become more important.
I think I have even seen big jets, like UA and JBU, sending out UAT978
I admit that I have spent most of my time trying to get UAT 978 to work. It is really hard to tune with no signal level reports or graphs, so I have to just change it, wait and look. Whilst I get 1090 contacts 24/7, UAT can get really quiet, especially in bad weather. If my replacement Amps get here soon, then I should be able to get better reception with a reasonably high omni-directional antenna.
Jon
Jon,
I just got a FA Pro Stick, no filter and put it up for 978. Seems to perform very nice, saw a C185 going into Ardmore, OK, about 70 miles north. Will have to wait and see how well it does, and try some different gains. I get the school aircraft out of DTO, most are UAT, so I have UAT traffic, if the weather is nice.
Thanks for the feedback,
Larry
Good luck Larry,
Mine(Pro stick) is working really well today with a gain of 43 (and the FA Filter) (EDIT: Gain now working well at 0).
flightaware.com/adsb/stats/user/ … tats-20974
I am using a directional antenna and have only played with a few gain settings.
The other problem for UAT 978 is antennas. I have the FA Dual band, however, it is no longer produced.
The DPD 978 Mhz antenna is $US150 (Plus taxes and delivery).
I did a search and couldn’t find any others that looked decent.
Jon
Change the file permission to 444 and it won’t be overwritten.
you can edit the script that configures it instead
/usr/lib/piaware-support/generate-receiver-config
That “0” needs to be “30001”.
sudo nano /etc/default/dump1090-fa
Ctrl-O to save, hit Enter to overwrite, Ctrl-X to exit.
After that do sudo systemctl restart dump1090-fa
In my system, it doesn’t get overwritten later.