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Fig. 4.


1.5 min of recording after subtracting the background signal and compensating for known dispersion measures for PSR B0320+39 and RRAT J0139+33. Only one pulse is not visible in the record for the pulsar, which is located between the points 109 000 and 110 000. For the transient, the recording for August 05, 2017 is shown. Three pulses are visible on the recording. The dynamic spectra of these pulses and the average profiles are shown in Fig. 1. The time interval between pulses labeled “1” and “3” is 67.44 s, which corresponds to 54 periods of J0139+33. The time interval between pulses labeled “2” and “3” is equal to one period. The vertical axis indicates the intensity in arbitrary units (a.u.) after removing the background signal. On the horizontal axis, the time is counted at points from the beginning of the observation session. One point corresponds to 12.5 ms. In both pictures, the intensity is normalized by the calibration step.

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