ADSB-In and Mode C transponder planes

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Gone Flyin

Pre-takeoff checklist
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Gone Flyin
To the pilots out there that have ADSB-In (and out) in their planes...

What, if anything, do you see if a plane is near you but has only a Mode C transponder running?

Does it make any difference if flight following has given that plane a distinct code for the trip?

Thanks!
 
As long as you are in range of a ground station, you will see them just like you see other airplanes, but you won't see N-number or anything like that. The ADS-B system sends out all traffic except primary targets. When you set up your ADS-B Out, you have to say whether you have UAT/978 In or 1090 In or both, then the ADS-B will only send you the traffic that you can't get air-to-air.

It makes no difference if they have a discreet transponder code. It works the same way.
 
Thanks for the reply, Jesse.

Does it show you what altitude they're at?
 
And anonymous mode from some ADS-B out units will display as "VFR" in place of the tail number - at least with the L3/iFly combo.
 
An aircraft with ADS-B Out client and ADS-B In with the ADS-B Out configured to receive TISB (not all are) will trigger a ground station to broadcast a TIS-B for a ode C equipped aircraft that is in a radar service volume and in a TIS-B service volume, will generate a TIS-B for such a qualified client. So in most cases, the answer is yes, the client will see a TIS-B target with the aircraft position and altitude if it enters the client TIS-B hockey pucj within 15 NM and +/- 3500 feet, but not always.
 
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