  Chinese Spectral Radio Heliograph (CSRH) is an advanced aperture synthesis
solar radio heliograph, developed by National Astronomical Observatories,
Chinese Academy of Sciences independently. It consists of 100 reflector
antennas, which are grouped into two antenna arrays (CSRH-I and CSRH-II) for
low and high frequency bands respectively. The frequency band of CSRH-I is
0.4-2GHz and for CSRH-II, the frequency band is 2-15GHz. In the antenna and
feed system, CSRH uses an Eleven feed to receive signals coming from the Sun,
the radiation pattern with lower side lobe and back lobe of the feed is well
radiated. The characteristics of gain G and antenna noise temperature T effect
the quality of solar radio imaging. For CSRH, measured G is larger than 60 dBi
and $ T $ is less than 120K, after CSRH-I was established, we have successfully
captured a solar radio burst between 1.2-1.6GHz on November 12, 2010 through
this instrument and this event was confirmed through the observation of Solar
Broadband Radio Spectrometer (SBRS) at 2.84GHz and Geostationary Operational
Environmental Satellite (GOES). In addition, an image obtained from CSRH-I
clearly reveals the profile of the solar radio burst. The other observational
work is the imaging of Fengyun-2E geosynchronous satellite which is assumed to
be a point source. This data processing method indicates that, the method of
deleting errors about dirty image could be used for processing other surface
sources.
