Labels:box | bulletin board | earth | fence | poster | skep | sky | windowpane OCR: incoming Qutgoing register register Last backward signal compelled sequence (e.g. A.1} 100 ms 150 50 ms Pulse signal A.3 No forward signals can be recognized for 300 100 ms 006} 180 ms} Group signal Group 8 signal CCITT-49291 Sending Receiving FIGURF 14/Q.442 Pulse transmission of signal A-3 Outgoing signat
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