Radioberry_hat_pa30

beta0.2 Release

This project provides a preamplifier to drive a 30W-PA (HL2-PA30 by ji1udd) for Radioberry-2. It will be plugged on top of the radioberry-2.

Feature

・Preamplifire(OPA2674) based on radioberry.hat
・On board ADC(MAX11613) for measuring pa-current, temperature and pa-fwd/rev from HL2-PA30 board.
・Paddle or straight key inputs and PTT(Key) inputs.
・No-latency sidetone output at local CW operation.

Board View

Connection diagram (beta0.1)

HL2-PA30 modifications.

PA30 mesurements.

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