Lots of single message tracks

[foxhunter]

Once you updated this, take a closer look into these threads

Thoughts on optimizing gain

The topic of gain comes up often enough and unlike some i don’t like the gain optimization script. Aircraft fading in and out of view make short term number gathering not that useful. The metric i like most for optimizing gain is the percentage of what dump1090 calls “strong_signals”. Those “strong_signals” are messages that get close to getting clipped. If you don’t care about some background you can scroll down to the next post for the HOWTO This is a clipped signal, the wa…

For Beginners: How to Change / Set Gain

How to Change / Set the Gain The method of changing gain depends on the installed software, as detailed below. (1) Piaware SD Card image with integral dump1090-fa Do NOT change gain in file /etc/default/dump1090-fa. It will be overwritten at piaware restart and Pi reboot Set the gain by command: sudo piaware-config rtlsdr-gain xx.x OR Set the gain by editing file piaware-config.txt: Open file for editing by following command sudo nano /boot/piaware-config.txt In above file scro…

Do I Need A Filter?

The space around ADS-B antenna contain not only 1090 MHz signals, but also lot of other signals at different frequencies. The closer the frequency of a signal to 1090 MHz, your ADS-B antenna picks it stronger. For example if there are three signals of equal strength, one at 144 MHz, 2nd at 850 MHz and 3rd at 950 MHz, the ADS-B antenna will pick 950 MHz one the strongest, 850 MHz one a bit less stronger, and 144 MHz one much fainter. As the Cell/Mobile/Pager signals exist in the range 850 MHz to…