Digital modes Babel TowerA review of ham radio digital modes with watefall differences between PSK RTTY Hellschreiber MFSK Olivia JT65A and digital voice by HB9TPL |
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Digital modes Babel TowerA review of ham radio digital modes with watefall differences between PSK RTTY Hellschreiber MFSK Olivia JT65A and digital voice by HB9TPL |
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