Hi Noel,
This is the Polar plot after 18 hours of LMR-400 coax, and it already gives a good indication of the performance improvement. The left image is RG-58 (outer pink ring is ~168.1 nm), and the right image is LMR-400 (outer pink ring is ~257.6 nm). I needed to use different scales to get all the LMR-400 plot on the map. The coverage in all directions has improved quite nicely, somewhere around the 40 to 50 nm mark.
The number of aircraft being picked up has also increased, reaching the 40-50 mark at times. I have seen 400 messages/second being processed, and up to 2,500 messages from some aircraft.
Needless to say, I am quite happy with the setup.
A live RadarBox plot is available on
www.16Right.com and updated every minute (direct link is
http://www.16right.com/YSSY/ADS-B.htm)
My son has just done an overlay version of the two plots above, adjusting for the different scales. The red is RG-58 built up over 4 days, and the Orange LMR-410 after 18 hours, and there are good increases in performance right around the compass.
