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NAVMARCORMARS FREQUENCY NETTING

NAVMARCORMARS FREQUENCY NETTING. REVIEW OF: TERMS, CONCEPTS AND THEORY OF AN AMPLITUDE MODULATED SIGNAL. AN AMATEUR TRANSCEIVER WINDOW DISPLAYS THE CARRIER FREQUENCY. BANDWIDTH DEFINED AS THE –3db POINTS ON THE POWER CURVE: B.W .= (F2 –F1) OR, TWICE THE HIGHEST MODULATING FREQUENCY:

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NAVMARCORMARS FREQUENCY NETTING

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  1. NAVMARCORMARS FREQUENCY NETTING REVIEW OF: TERMS, CONCEPTS AND THEORY OF AN AMPLITUDE MODULATED SIGNAL AN AMATEUR TRANSCEIVER WINDOW DISPLAYS THE CARRIER FREQUENCY • BANDWIDTH • DEFINED AS THE –3db POINTS ON THE POWER CURVE: B.W .= (F2 –F1) OR, • TWICE THE HIGHEST MODULATING FREQUENCY: • A 3 KHZ MODULATION TONE PRODUCES A 6 KHZ WIDE SIGNAL WITH • TWO SIDEBANDS, EACH 3 KHZ WIDE, EACH CARRYING IDENTICAL INTELLIGENCE. • AMATEUR SERVICE CHANNELS FOR AM MODE ARE 6 KHZ WIDE. • AMATEUR SERVICE AND MARS CHANNELS FOR SSB ARE 3 KHZ WIDE.

  2. NAVMARCORMARS FREQUENCY NETTING SUPPRESSED CARRIER UPPER SIDEBAND SIGNAL NAVMARCORMARS DESIGNATION 3K00J3E 1.5 KHZ 1.5 KHZ • TO CENTER TRANSMISSION SIGNAL INTELLIGENCE ON AN ASSIGNED FREQUENCY • WHEN USING USB MODE, SET YOUR TRANSCEIVER 1.5 KHZ BELOW THE ASSIGNED • FREQUENCY. • EXAMPLE: ASSIGNED FREQUENCY 4012.5 KHZ – 1.5 KHZ = 4011.0 KHZ WINDOW FREQ.

  3. NAVMARCORMARS FREQUENCY NETTING SUPPRESSED CARRIER UPPER SIDEBAND SIGNAL NAVMARCORMARS DESIGNATION 1K24F1B SINGLE CHANNEL DATA • TO CENTER TRANSMISSION SIGNAL INTELLIGENCE ON THE ASSIGNED • FREQUENCY WHEN USING FSK MODE, SET YOUR TRANSCEIVER 85 HZ • BELOW THE ASSIGNED FREQUENCY. • EXAMPLE: ASSIGNED FREQ 4012.500 KHZ – 85 HZ = 4012.415 OR 4012.42 KHZ • WINDOW FREQUENCY.

  4. NAVMARCORMARS FREQUENCY NETTING SUPPRESSED CARRIER UPPER SIDEBAND SIGNAL NAVMARCORMARS DESIGNATION 3K00J3E SINGLE SIDEBAND VOICE AFSK: 170 HZ SHIFT TNC’S TONE PAIR: 2125 / 2295 • TO CENTER TRANSMISSION INTELLIGENCE ON THE ASSIGNED FREQUENCY • WHEN USING AFSK IN USB MODE, SET YOUR TRANCEIVER 2210 HZ BELOW • THE ASSIGNED FREQUENCY. • EXAMPLE: ASSIGNED FREQ 4012.500 KHZ – 2.210 KHZ = 4010.29 KHZ WINDOW • FREQUENCY.

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