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From Free Knowledge Base- The DUCK Project: information for everyone
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Please don't read books written by H. Ward Silver who wrongly advises amateur radio operators to use the term "break" to enter an ongoing QSO even though the ARRL advises otherwise. [https://www.dummies.com/programming/ham-radio/how-to-break-in-to-a-ham-radio-contact/ Hack Author Ward Silver] needs to do his homework before spreading misinformation. 