Posted by: radiohead
« on: January 21, 2015, 04:44:21 pm »Now I understand that the P175 is a modulation analyser, not a measurement receiver, nonetheless I thought it would be interesting to try using it for a drive survey. It may not be wholly accurate, but easier and more accurate than manually writing 3bars, 4 bars in a log book or on a map!
I used a simple script (adapted from one of the example scripts) to record time, signal level, quality and AM noise with 1 second periodicity. In parallel I used an app called "GPS Logger" on my Android mobile (the fastest it could work was about 1 position every 3 seconds).
Then a little bit of post processing on both data files in MS Excel and uploaded to Google Fusion tables which automatically geo-codes the data. After that used Fusion menus to put data into bins for display. (approx 10 minutes work). I'm sure someone cleverer than me could produce a more integrated solution...?
Here is the result:
https://www.google.com/fusiontables/DataSource?docid=1bZhTU9S_6REHEqNhWo4KQI5ViOPjvmciUN-gZRQm#map:id=3
I used a simple script (adapted from one of the example scripts) to record time, signal level, quality and AM noise with 1 second periodicity. In parallel I used an app called "GPS Logger" on my Android mobile (the fastest it could work was about 1 position every 3 seconds).
Then a little bit of post processing on both data files in MS Excel and uploaded to Google Fusion tables which automatically geo-codes the data. After that used Fusion menus to put data into bins for display. (approx 10 minutes work). I'm sure someone cleverer than me could produce a more integrated solution...?
Here is the result:
https://www.google.com/fusiontables/DataSource?docid=1bZhTU9S_6REHEqNhWo4KQI5ViOPjvmciUN-gZRQm#map:id=3