Static Radar Fun on 1296 MHz

Signal source is 1 watt to a bi-quad reflector antenna.  Reception is with the same type antenna to a 0.5 dB Noise Figure LNA feeding a SDRplay RSP1A USB receiver with computer running SDRConsole (V3).  The signal source is located at my first ham shack where I made my first contact 56 years ago.  Distance between the source and receiver antenna is 1.88 miles (3.02 km).

The 1 watt beacon transmitter is located in the building where I made my first novice contact in 1963 as WN4RUZ.

The antenna is a Bi-Quad with reflector and plastic radome.

Bi-Quad Antenna at receive site.

Aircraft Doppler shifts and unidentified reflections

I don't know what the blurred reflections are from.  The angle indicates it's slower moving than the obvious plane reflection that is near perpendicular line to the signal source.  No small planes which would be at lower altitudes were seen or heard even though the fast moving high altitude plane was seen passing overhead.  Several days of continuous screen capture monitoring has not show the same activity.