Electronic Kit for Amateur Radio Operator & Home Brewer from Korea(HL5FTC & DS5TUK)
SDR4(Software Defined Radio Version4)
Circuit / PCB / PartList / AssemblyGuide / Inside of EHB-1 / User&Pics
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Include of 7MHz LO oscillator(28.200MHz) - PCB is 2 layered with size of 79x45mm - Easy to assemble and adjust without RF test & measurement equipment. - RX frequency is ranging 7.002~7.098MHz on 96KHz ADC soundcard. Also, receive under 70MHz when external LO signal input. Frequency range depends on 4X external LO signal input. - Option : 3Band(3.5/7/14MHz) CW QRP TX. -Price : SDR4 Kit USD40.0 without case, USD65.0 with case. 3Band CW TX Kit USD 50.0 S&H Fee USD25.0 - If you want purchase, using Paypal account : ds5tuk@amsat.org and send me a e-mail. |
* Circuit Diagram - SDR4 Board
English/TX & RX/SDR4 & 3Band CW TX/Circuit Diagram/SDR4/20100601
SDR 4_sch.pdf
* Circuit Diagram - 3Band CW TX Board
* Printed Circuit Board(Unit : m/m)