In the period from 24 January to 2 February, 2020 several radio astronomical observation sessions were conducted in order to test the capabilities of of the Irbene RT32 radio telescope by observing non-bright* OH masers in 1.665MHz and 1.667MHz frequencies. The observation was organised within the framework of the project "Complex Investigations of the small bodies in the Solar system" (No.Izp-2018/1-0401) in which one of the activities is Investigations of Solar System small bodies, including OH maser line detection (flux density 40 mJy or 0.04 Jy) in 1.665MHz and 1.667MHz frequencies.     

Improvements to the 1.6 GHz frequency band receiver and noise abatement activities of surrounding systems have, for the first time in the history of the VIRAC, resulted in average noise levels below 0.25 Jy at 1.665MHz and 1.667MHz by processing several-day observational data. Work on observations and data processing is ongoing, as the desired result is to reduce the resulting noise level to 0.02 Jy in order to successfully detect solar system comets in the 1.6GHz frequency band.