Closing TIS sites?

Dave Siciliano

Dave Siciliano

Final Approach
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Dave Siciliano
it sounds like the FAA is contemplating reducing the number of existing TIS stations that provide the traffic info via a transponder data link.

http://www.avionicswest.com/archive/330MFD.htm#2005

The new Baron we just purchased has the he Garmin GTX330). It sure is great with you can get the traffic on it; would hate to lose coverage areas.

Best,

Dave
Baron 322KS
 
I don't know if they are or not, but I can kind of see how it would make sense. With ADS-B maturing and the ability to provide coverage anywhere, it seems cheaper and more efficient to let the airplanes carry the traffic equipment around instead of paying to support ground based facilities that only cover part of the country.
 
Well, that would be a great disappointment if the FAA shuts down TIS. I find it useful in the areas where I go.

Joe, IIRC, ADS-B also requires uplinking of info from the ground. It's not all in-aircraft based. And the coverage of ADS-B is fairly limited right now compared to TIS.
 
Yes; The alternate satellite system is quite a bit more expensive than TIS.

Dave
Baron 322KS
 
I've heard from inside the FAA (HQ offices dealing with this stuff, not just the local FSDO) that the FAA is committed to ADS-B as the future data transfer system, and that Mode S is a dead man walking. While ADS-B coverage is currently limited, they plan to blanket the country over the coming years.
 
Guess I really shouldn't buy a Mode S then. My but that was shortlived. And LORAN still survives. Go figure.
 
silver-eagle said:
Guess I really shouldn't buy a Mode S then. My but that was shortlived. And LORAN still survives. Go figure.
Click to expand...
There are a lot more LORANs out there in a lot more than aviation usage than there are Mode S transponders. But LORAN is still a dinosaur -- while it hasn't died yet, it's not going to be around much longer.
 
Ron Levy said:
There are a lot more LORANs out there in a lot more than aviation usage than there are Mode S transponders. But LORAN is still a dinosaur -- while it hasn't died yet, it's not going to be around much longer.
Click to expand...

That's what I thought as well, but somebody's spending a fair chunk of change on E-LORAN and it may well end up back in favor for aviation as a backup to GPS.

http://www.loran.org/library/2004ICNS2.pdf

http://www.loran.org/Newsletters/May 2005.pdf

http://waas.stanford.edu/~wwu/papers/gps/PDF/LoENCGNSS04.pdf
 
sere said:
I have used loran's before but what is the E-Loran?:dunno:
Click to expand...

Depending on who you ask it stands for E-field LORAN or Enhanced LORAN, and both are good descriptions. Basically it's taking the LORAN concept (developed something like 50 years ago) into the current technological age resulting in much better accuracy and reliability. Many see this a logical complement to GPS since it is ground based vs satellites, high power vs faint signal strength, and low frequency (100 KHz vs GHz).

Some downsides are the lack of coverage beyond the North American continent, and lack of portability for receivers.
 
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