Статья с описанием, схемами и фотографиями КВ-трансивера Star-10 конструкции KW7CD (Cornell Drentea).
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The completed Star-10 transceiver is designed to receive and transmit anywhere from
1.8 MHz to 30 MHz with a resolution of 10 Hz. It provides full cross mode, end-to-end RX/
TX Split operation with a transmitter RF power of 100 W (125 W peak). The receiver has a
composite spurious-free linear dynamic range in excess of 150 dB. It exhibits an MDS of
–136 dBm (absolute), a third-order intercept point of +45 dBm. A coherent DDS-Driven PLL
microwave synthesizer provides close in phase noise performance of –133 dBc/Hz. Receive
spurious image rejection is –75 dB and transmit harmonic rejection exceeds –55 dBc. The
transceiver uses a coherent up-convert down-convert superheterodyne approach.
The electrical and mechanical design features a modular approach using eighteen
double sided, plated through printed circuit boards housed in machined, irradiated
aluminum assemblies, all packaged in a custom made, hammer-tone finished cabinet
measuring 15.5 x 6 x 11 inches.