5 GHz Receiver for Maser Sources Observations with RT-22 CrAO

The no cooled 5 GHz radiometer has been introduced into operation at 22-m radio telescope CAO. The system temperature was 60 K. We report the observations of the 4765-MHz maser transition of OH (²Pi_1/2, J=1/2, F=1rarr0) towards 13 star-forming regions with spectral resolution of 0.06 km s^-1, taken with the 22-m Simeiz telescope