Important Warnings - microHAM microKEYER Manual

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2 - IMPORTANT WARNINGS

If you power micro KEYER from an external power supply,
ALWAYS check the polarity of the 13.8 V power supply.
If you use micro KEYER with more than one transceiver,
ALWAYS be sure the proper microphone is connected to the RJ45 jack
BEFORE connecting the DB37 RADIO cable.
If your radio includes upgradeable firmware,
DO NOT perform any upgrade through micro KEYER .
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