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Mixer comparison: “NE612” vs. “AN612”

Abstract The well-known mixer NE612 (NXP) will be compared to an AN612 (Matsushita/Panasonic) mixer that has been unsoldered from an old CB-SSB-radio. Comparison will include output voltage level and spectroscopic analysis of a 9MHz SSB signal. The NE612 When we talk about about integrated double balanced mixers (DBM) and say the number “612” we usually…

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An experimental HF 6-band SSB transceiver – Part 5: Analog Affairs – Getting Measurement Data

This short article will describe the adapter board that is connected to analog data sources and that is converting the respective voltage data into suitable voltage levels for the ADC inputs PA0:PA4 at the microcontroller: The following data will be converted and later shown on the display: User keys (Key1:Key3) TX power measurement PA temperature…

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