Another part of Stars Song project will consist in sending and receiving radio signals in telegraphy or telephony (Single Side Band) or digital signals toward the Moon. CAMRAS WebSDR in diffusing such radio signals sent by radioamateurs and reflected by the Moon. La Villette radiotelescope antenna should be equipped with a source cavity adapted to Earth-Moon-Earth (EME) frequency band around 1296 MHz. We are thinking of using digital transceiver (Transmitter – Receiver) Lime SDR, a device that has been selected by European Space Agency.
All these operations are achieved by capturing radiowaves signals using a Software Defined Radio (SDR) receiver. Receiver is driven by a software driver that is presently under development by INDI developers. Using INDI API for both sky objects targetting and recording will simplify development of both parts of our project, radioastronomy and hamradio communications.
Present SDR market has a few TRX (transmitter and receiver) offers such as LimeSDR. The choice of TRX model for EME (Earth Moon Earth, EME) is not yet fixed. LimeSDR mini will soon be tested. A driver for LimeSDR is still under beta test in INDI library.