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RF63 Datasheet(PDF) 88 Page - List of Unclassifed Manufacturers |
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RF63 Datasheet(HTML) 88 Page - List of Unclassifed Manufacturers |
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88 / 91 page  ADVANCED COMMUNICATIONS & SENSING Page 88 of 91 RF63 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com 7.6.13. Digital Modulation Schemes FCC Part 15.247 allows for systems employing digital modulation techniques to transmit up to 1 W , provided that the 6 dB bandwidth of the signal is at least 500 kHz and that the power spectral density does not exceed 8dBm in any 3 kHz bandwidth. The RF63 can actually meet these constraints whilst transmitting at the maximum output power of the device of typ. 10dBm, thanks to the built-in whitening process described in section 5.5.6.2: Figure 85: DTS 6dB Bandwidth Conditions: • Pout = +10.6dBm • Fdev = +/-200kHz Figure 86: DTS Power Spectral Density • BR=100 kbps (Chip rate=100kCps, as data whitening is enabled) • Packet mode, data whitening enabled Note: Manchester encoding allows meeting an even lower power spectral density, at the expense of the bit rate efficiency. |
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