focal_plane
Pre-takeoff checklist
Is anyone familiar with a solution? I've done some searching but haven't hit on the answer.
What I was looking for was a similar capability of some of the "i" devices with ADS-B portable receivers (Stratus, Skyradar). I don't recall seeing one with an interface to the garmin portables. Seems like trafic info through the power/serial port and wx through the wx port might be possible, at least for the 496, I'm not familiar with the aera/696/796 architecture. Seems like a number of folks might use this option who are getting wx from Sirius. Might not be technically feasible though, just a question.
To keep sales going must likely it will be a new Garmin portable product with the UAT receiver built in, just like the GPS receiver. It will probably be around $1000 to compete with the current ADS-B+Ipad configurations
José
I agree, Garmin has very little incentive to support a SW/FW upgrade. If I were designing an interface, I'd format the ads wx data to look like the XM wx data looks so no Garmin change required. Same with the traffic display which companies like Zaon have done. The way I wrote that "make the ads wx data look like xm wx data" sounds trivial; I suspect it's not otherwise we would have seen it hit the market. With all of the X96 devices out there and most folks' desire to get off the XM grid, it seems like there would be a pretty good market for it. These folks claim to have an X96 interface for ADS WX and TIS-A:
The bigger question is, why would anyone want to support legacy systems when they have a huge emerging market? I suppose the data could be reformatted, but among other concerns, I would think that opens an unnecessary liability risk should there be a problem.
In addition, there is not a direct correlation between the suite of XM products and ADS-B products. The Garmin portables also don't support WiFi, which is the dominant method of connectivity for portable ADS-B receivers, so a serial connection would be required. And at the end of the day, what could be displayed without software changes on the Garmin would be, at best, incomplete.
JKG
I might go for that. A little less than 2 years of XM subscription plus traffic.
There are a couple of different things going on.
ADS-B Out -> your aircraft transmits GPS coordinates (and other data)
Above FL 240 Must be 1090 MHZ
Below FL240 can use UAT 978 MHZ.
FAA plans ground based repeater to allow one group to obtain data from other. That is ADS-R uplink repeater from ATC.
There are other ATC uplinks.
TIS= Surveilance Radar information uplink - in service now in active TCA
FIS - Flight Information Service, supposed to be free weather uplink from FAA
Generally, I don't think of the uplinks as ADS-B IN. Companies selling gear for the big iron are pitching recievers that recieve ADS-B OUT from other aircraft directly, no uplink.
If you just want to see whos around you (given some latency) on a VFR flight, it's not a big deal. I really like TIS when I'm up practicing manuvers.
Some of the applications I mentioned in an earlier post involve ATC turning over some measure of the responsibility that have for maintaining IFR separation, to cockpit of appropriately equipped ADS-B in aircraft.