SDR HF I/Q S/H (Sample and Hold) receivers - DR2I+ and DR2I+ from 30 kHz- 65(110) MHz
The DR2I+and DR2I++ are new SDR RX with 74HC4066 or with new better 74LVC4066 from Philips.
DR2I++ is redesigned DR2H++ with similar specifications with LO which is twice (2 times) higher than receiving frequency. It has additional RF preamplifier attenuator and ultra low noise audio amp realized with state of the art OP AMP from Analog Device AD797. it is working to the 65 MHz with 74HC4066 and to the 110MHz with 74LVC4066!!
HF/VHF SDR Receivers DR2I+ and DR2I++ by YU1LM
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