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Products description
Easy to build external Dynamic Compressor especially for the Yaesu FT-817/818, but can also be used for other transceivers with the same microphone interface such as the FT-857, FT-897 or FT-900.
When transmitting SSB, dynamic compressor increases average transmitted power, and thus the audibility of a weak signal at the distant receiver, by at least one S-unit. This accessory is of special interest to amateur radio operators who work with lower transmitting power or wish to be better heard in a pile-up.
Based on SSM2167 (Analog Devices)
PCB with all SMD parts preassembled.
Powered over RJ45 cable (10 mA), no power supply or battery required.
File
Construction and Operations Manual
2.97 MB
2.97 MB
Multilanguage (german / english) construction and operations manual
Audio Sample
539.66 KB
539.66 KB
MP3 file with received CQ calls sent with an FT-817 (cause of the sporadic rattle disturbances is the summer storm situation). At the first call the compressor is switched off, at the second one (from 22. second) it is then switched on.
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