Hamgeek Q900 300khz-1.6ghz Sdr Radio Bluetooth Sdr Transceiver Full Mode Software Defined Radio - Smart Remote Control - AliExpress
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Software Defined Radio Transceiver: Theory and Construction of the T41-ep Amateur Radio SDT: Peter AC8GY, Albert, Purdum W8TEE, Dr. Jack: 9798446384280: Amazon.com: Books
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