Why no fixed phase difference with doppler RDF observed?

2024-12-22 Thread Robert Heerekop
Hello Radio Friends, I wonder why I don't observe a fixed phase difference between a demodulated 500Hz doppler FM-signal and a fixed GNR 500Hz sine source. The setup is a USB-RTLv3 in a RaspberryPi. The RTL-oscillator is divided by a (hardware!) synthesizer chip and drives the antenna rotation whic

Phase difference error

2024-12-22 Thread Muhammad Anas
Dear GNU Radio Community, I have demodulated two AM&FM 30 Hz Signals in gnu radio companion, receiving a VOR signal using usrp n210 from a signal generator SMA 100A via SMA to SMA cable, but there is error in the oscilloscope (QT GUI time sink) in the phase difference btw two signals of 30 hz, whe