Can you post a screenshot of your setup (so we can see the RSSI values)? It's possible you have reception issues and should try moving your antennas around. You could also increase the squelch on your voice receiver.
Hmm, a RSSI value of 52 suggests weak reception, so you should definitely move your voice antenna around and try to get that RSSI value closer to 60. You could also try increasing that squelch setting to reduce noise/static between calls.
That Window reading is also too high. The dongle is off frequency. The ppm setting needs fixed and the auto correct needs on. My dongles hate a window over 100. Gotta be 50 or less....but then I listen to digital.