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View Full Version : D ATIS and ADSB


CAPILOTION
04-22-2018, 05:51 AM
Hi
Does anyone know if its possible to receive D ATIS via ADSB or online?
It would be great to be able to read the ATIS rather than trying to listen to two frequencies at once.
Thanks


PerfInit
04-22-2018, 07:44 AM
I don’t believe this is possible. Completely different frequencies. D ATIS is via VHF Data Link (VDL) aka ACARS. ADS-B “in” is via UHF (978 or 1090 Mhz)

CAPILOTION
04-22-2018, 08:01 AM
I don’t believe this is possible. Completely different frequencies. D ATIS is via VHF Data Link (VDL) aka ACARS. ADS-B “in” is via UHF (978 or 1090 Mhz)

Makes sense. But how about viewing the D ATIS online or adding some sort of receiver for a stratux?


PerfInit
04-22-2018, 08:20 AM
There may be some software out there for ACARS reception and decoding the data (packet) bursts. It will require a RTL-SDR USB Dongle, antenna, software, etc. Check out NoElec web site for starters.

Bengal
04-22-2018, 10:51 AM
Makes sense. But how about viewing the D ATIS online or adding some sort of receiver for a stratux?

You can view D-ATIS on commercial sites, such as ARINC DIRECT. But they’re likely just getting the feed from the VHF network they use to serve datalink to customers.

I agree with the previous poster, it won’t be possible via ADS-B; over that medium, you’ll receive only the METAR.

JamesNoBrakes
04-22-2018, 12:38 PM
I don’t believe this is possible. Completely different frequencies. D ATIS is via VHF Data Link (VDL) aka ACARS. ADS-B “in” is via UHF (978 or 1090 Mhz)

Only 978 ads-b can receive weather information. The FAA "cut a deal" with Yurp and made 1090 required for all aircraft above 18,000, which is what they use in Yurp, but the downside is that the bandwidth isn't enough to put the FIS-B products in there, so this great 978 network that the FAA built got shot to hell by this decision. Many receivers now are 1090 AND 978, but airlines are cost-cutters by nature and they wanted to have things nailed down long before the deadline, so pretty much all of their installations are 1090 in and out from what I know. We now rely on a ground-based re-transmitting system to re-transmit opposite frequencies (if there's a 978 aircraft next to a 1090 aircraft), which is limited by line of sight and the equipment. A far cry from the idea that the airplanes will be able to "talk directly to each other". Much of GA uses the 978 ADS-B in and out, and as such, they get the free weather information.

HwkrPlt
04-22-2018, 01:01 PM
Only 978 ads-b can receive weather information. The FAA "cut a deal" with Yurp and made 1090 required for all aircraft above 18,000, which is what they use in Yurp, but the downside is that the bandwidth isn't enough to put the FIS-B products in there, so this great 978 network that the FAA built got shot to hell by this decision. Many receivers now are 1090 AND 978, but airlines are cost-cutters by nature and they wanted to have things nailed down long before the deadline, so pretty much all of their installations are 1090 in and out from what I know. We now rely on a ground-based re-transmitting system to re-transmit opposite frequencies (if there's a 978 aircraft next to a 1090 aircraft), which is limited by line of sight and the equipment. A far cry from the idea that the airplanes will be able to "talk directly to each other". Much of GA uses the 978 ADS-B in and out, and as such, they get the free weather information.

What is Yurp?

PerfInit
04-22-2018, 01:31 PM
I think he means “Europe”

HwkrPlt
04-22-2018, 01:32 PM
I think he means “Europe”

Well, thats something...