mic compressor
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Radio Equipment : HF Transceivers : Yaesu FT-817
- FT-817 Audio Speech Compressor: Boosting Signal Power with SSM2165
- Designed for the FT-817, this audio speech compressor, centered on the Analog Devices SSM2165, offers a 40 dB compression range, enhancing signal power. Built externally with the SMD version to preserve warranty, the circuit interfaces smoothly with electret microphones. Testing shows a 6 dB average power increase. Adaptable to rigs with electret microphones, it maintains unity gain and 40 dB compression.
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- Yaesu FT-817 Audio Enhancement: Heathkit-inspired Homebrew Project
- Inspired by Heathkit, author aimed to enhance his Yaesu FT-817 with audio and RF processing. Design goals included a compact enclosure, PCB simplicity, matching jacks, a visual meter, and a built-in signal generator. Despite challenges in finding a suitable compressor IC for a 5V DC mic jack, he chose the Analog Devices SSM2165/2166 series. Prototyping with a solderless breadboard, author planned a PCB layout for its versatile performance in communication use.
[ Hits: 80 | Votes: 1 | Rating: 2 ]
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