To adjust, adjust and calibrate the scales of radio receivers and radio amateur measuring generators and to verify them during long-term operation, a signal source of a higher accuracy and stability class is needed. The proposed version of the quartz calibrator provides at the output a grid of modulated harmonics of the fundamental frequency of the used quartz resonator.

One of the quartz resonators was taken at a frequency of 28 MHz., As a result, at the output of the calibrator I received frequencies of 28 MHz, 14 MHz, 7 MHz, 3.5 MHz, 1.75 MHz, which perfectly coincides with the beginning of 4 radio amateur bands and will allow not only tune the receiver to that frequency, but also tune the bandpass filters in the receiver. The 3rd harmonic of 7 MHz will give us another 21 MHz amateur band.

The second quartz resonator was a 4 MHz resonator, which allows us to obtain "even" frequencies when dividing - 4 MHz, 2 MHz, 1 MHz, 500 kHz, 250 kHz. The harmonics of these fundamental signals should be enough to tidy up the scale of the receiver.