IC OP-AMP, 2000 uV OFFSET-MAX, 3 MHz BAND WIDTH, PDIP8, PLASTIC, MO-095AA, DIP-8, Operational Amplifier
Adjustable Positive LDO Regulator, PDSO3, ROHS COMPLIANT, PLASTIC, SOT-223, 4 PIN

Aerial with SMA connection 35 kHz typically adjustable via the software 500 m, AMB1981, Amber Wireless