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SNR Examples (20 and 3 MHz)●●●●R=100 km, λ=15m (20 MHz)● S=-38dBm ; N= -96 dBm ; SNR=+58 dB±10 dBR=400 km, λ=15m (20 MHz)● S=-50 dBm ; N=-96 dBm ; SNR=+45 dBR=100 km, λ=100m (3 MHz)● S=-22 dBm ; N= -76 dBm ; SNR=+54 dBR=400 km, λ=100m (3 MHz)● S=-34 dBm ; N= -76 dBm ; SNR=+41 dB±20 dBFor sites with “reasonable” noise,very high SNR can be obtained with “modest” antennas
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