I don't have time to test the receivers as I also have the same receivers. I did not get -110dbm out of them though when I initially set it up. I also used the same software as well.
I did not have a lot of time to play around with them, so I will when I complete this years Uni.
The cross over or what appears to be Doppler shifted signal maybe a good signature for something moving. I cant shed any more light on that apart from that it looks good for investigating.
One thing I am not sure of as yet, but I want to find out whether the Ionisation of the meteor produces it on signal based on the energy that is dissipated on entry. I haven't found anything that would suggest that and not sure where to start on that one. If it does emit a frequency where is it on the spectrum!!??
For me it is an interesting field and would really like more time to work on it as well. Maybe one day. I have in mind and alternative radar system that may or may not work. I hope that one day I will work on it. Holidays coming but a lot of project s to complete.