Figure 6-20Mhz Spectrum Mask; Figure 7-40Mhz Spectrum Mask - Motorola Orthus Manual

Table of Contents

The Orthus radio shall be designed to meet IEEE recommendation for spectrum mask. For the 20MHz operation, the

spectrum mask will conform the IEEE standard in 802.11n draft 2.0 as defined in 21.3.20.1. Please refer to the draft

2.0 for more details.

When transmitting in a 20 MHz channel, the transmitted spectrum shall have a 0 dBr (dB relative to the maximum

spectral density of the signal) bandwidth not exceeding 18 MHz, –20 dBr at 11 MHz frequency offset, –28 dBr at 20

MHz frequency offset and –45 dBr at 30 MHz frequency offset and above. The transmitted spectral density of the

transmitted signal shall fall within the spectral mask, as shown in Figure n64 (Transmit spectral mask for 20 MHz

transmission). The measurements shall be made using a 100 kHz resolution bandwidth and a 30 kHz video

bandwidth. The mask for 40MHz RF signal is shown below:

Figure 6-20MHz spectrum mask

For Internal Use Only - Do Not Duplicate

CONFIDENTIAL AND PROPRIETARY

Table of Contents