  Here we briefly present some design approaches for a multifrequency
96-antenna radioheliograph. The array antenna configuration, transmission lines
and digital receivers are the main focus of this work. The radioheliograph is a
T-shaped centrally-condensed radiointerferometer operating at the frequency
range 4-8~GHz. The justification for the choice of such a configuration is
discussed. The antenna signals are transmitted to a workroom by analog optical
links. The dynamic range and phase errors of the microwave-over-optical signal
are considered. The signals after downconverting are processed by the digital
receivers for delay tracking and fringe stopping. The required delay tracking
step and data rates are considered. Two 3-bit data streams (I and Q) are
transmitted to a correlator with the transceivers embedded in FPGA (Field
Programmed Gate Array) chips and with PCI Express cables.
