Sam Washington wrote:
Kent,
Thanks for the reply.  I'm beginning to think that I should wait on the SkyRadar.  I agree with you that the technology should be made available to everyone so that we can all see how it will help us.  I also see a lot of potential for the unit but only after we get people using ADS-B regularly.
Sam
 
Ironically, I think that may be part of the reason why traffic is only available when ADSB transmitters ping it.  The FAA wants aircraft to have ADSB -out capability, so this is part of the carrot/stick approach.  "Install an ADSB receiver, and you get a carrot (free weather radar).  But if you don't install an ADSB-out transmitter, we'll hit you with the stick (by not broadcasting traffic to you)".
I don't actually know for sure if that's the rationale, but it could be.