Detection and investigaton of radio emission of the PSR 1530+27 pulsar at 25 MHz

The pulse radio emission of PSR 1530+27 is detected in the 25 MHz range. The dispersion measure is smaller than the one measured at 430 MHz: 12.5±0.3 in comparison with 13.6±1. The pulse radio emission occupies the whole period. The mean pulse consists of the ''main'' pulse and of at least two interpulses. The longitudes of these interpulses are 135 and 225 deg. The modes of the radio emission are detected. These modes are shifted in the longitude by approximately 145 deg. It is suggested that these modes form in sum the mean pulse