Hello all.
I’m feeling pretty good about my antenna setup, but I would like some feedback on if there is anything I can do better. Below are my stats from the last 2 hours. I’m planing on raising the antenna up to get better coverage in the coming months. It’s a long term project…adding a better tower for this and other antennas. Is there anything that can be done to reduce the bad message count? Signal power looking ok?
In the past, I’ve had issues with power supplies and USB connection errors, but I believe those are now resolved.
Statistics: Sat May 23 11:31:11 2015 EDT - Sat May 23 12:31:11 2015 EDT
Local receiver:
65925 sample blocks processed
0 sample blocks dropped
0 Mode A/C messages received
87868276 Mode-S message preambles received
55601052 with bad message format or invalid CRC
30488152 with unrecognized ICAO address
1682405 accepted with correct CRC
96667 accepted with 1-bit error repaired
-4.8 dBFS mean signal power
-0.6 dBFS peak signal power
459315 messages with signal power above -3dBFS
Messages from network clients:
0 Mode A/C messages received
347 Mode S messages received
0 with bad message format or invalid CRC
0 with unrecognized ICAO address
347 accepted with correct CRC
0 accepted with 1-bit error repaired
1779419 total usable messages
14 surface position messages received
75923 airborne position messages received
73770 global CPR attempts with valid positions
0 global CPR attempts with bad data
0 global CPR attempts that failed the range check
0 global CPR attempts that failed the speed check
104 global CPR attempts with insufficient data
1939 local CPR attempts with valid positions
1850 aircraft-relative positions
89 receiver-relative positions
228 local CPR attempts that did not produce useful positions
214 local CPR attempts that failed the range check
0 local CPR attempts that failed the speed check
0 CPR messages that look like transponder failures filtered
567 unique aircraft tracks
158 aircraft tracks where only one message was seen
CPU load: 49.3%
1486985 ms for demodulation
233585 ms for reading from USB
52687 ms for network input and background tasks
Statistics: Sat May 23 12:31:11 2015 EDT - Sat May 23 13:31:11 2015 EDT
Local receiver:
65924 sample blocks processed
0 sample blocks dropped
0 Mode A/C messages received
87060454 Mode-S message preambles received
55049254 with bad message format or invalid CRC
30192877 with unrecognized ICAO address
1725505 accepted with correct CRC
92818 accepted with 1-bit error repaired
-4.6 dBFS mean signal power
-0.4 dBFS peak signal power
540815 messages with signal power above -3dBFS
Messages from network clients:
0 Mode A/C messages received
0 Mode S messages received
0 with bad message format or invalid CRC
0 with unrecognized ICAO address
0 accepted with correct CRC
0 accepted with 1-bit error repaired
1818323 total usable messages
18 surface position messages received
66862 airborne position messages received
64971 global CPR attempts with valid positions
1 global CPR attempts with bad data
0 global CPR attempts that failed the range check
1 global CPR attempts that failed the speed check
91 global CPR attempts with insufficient data
1726 local CPR attempts with valid positions
1653 aircraft-relative positions
73 receiver-relative positions
182 local CPR attempts that did not produce useful positions
164 local CPR attempts that failed the range check
0 local CPR attempts that failed the speed check
0 CPR messages that look like transponder failures filtered
501 unique aircraft tracks
184 aircraft tracks where only one message was seen
CPU load: 49.2%
1486198 ms for demodulation
232905 ms for reading from USB
53294 ms for network input and background tasks