Kenwood TS-590SG Master Oscillator Drift and Warm Up

  A video for informative purposes, measuring the frequency drift of the master oscillator on Kenwood TS-590SG for 30 minutes after a ‘cold’ switch on. FLDigi was used to assess the audio frequency drift of the audible signal. Not shown on the video, is that the master oscillator was eventually settled correctly on the proper frequency after about 45 minutes on the receive mode. Perhaps, if someone was transmitting with…

Kenwood TS-590SG Reference Frequency Calibration (master oscillator tuning)

  Tuning of the local oscillator frequency on Kenwood TS-590SG. —————————————————————————————– According to the manual, the variable capacitor that needs to be adjusted is the TC501 (p.77 manual) and this is printed on the PCB, so it’s easy to locate it. Tip for variable capacitor: Clockwise: Decreases frequency. Anticlockwise: Increases frequency. Make VERY fine and slow adjustments, as the frequency is exceptionally sensitive to the capacitor rotation.