Adjacent Channel Rejection; Non-Adjacent Channel Rejection; Figure 19-Adjacent Channel And Non-Adjacent Channel Rejection Specification - Motorola Orthus Manual

2.7.2

Adjacent channel rejection

The adjacent channel rejection is measured by setting the desired signal's strength 3 dB above the rate-dependent
sensitivity specified in the radio receiver minimum sensitivity, and raising the power of the interfering signal until
10% Packet Error Rate (PER) is caused for a PSDU length of 4096 bytes for 1000 packets. The power difference
between the interfering and the desired channel is the corresponding adjacent channel rejection. The interfering
signal in the adjacent channel shall be a conformant OFDM signal, unsynchronized with the signal in the channel
under test.
For more detail about the setup requirements, please read the 802.11n draft section 21.3.21.2
Waveform Data rate Modulation
(Mbps)
DSSS
1
2
5.5
11
OFDM
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM

Figure 19-Adjacent Channel and non-adjacent channel rejection specification

2.7.3

Non-adjacent channel rejection

The setup is similar to adjacent channel rejection specification. Please refer to Figure 19-Adjacent Channel and non-
adjacent channel rejection specification
Coding Adjacent
rate channel
rejection
(dB) per
802.11 a/b/g/n
draft 2.0
standard
35
35
35
35
½
16
½
13
¾
11
½
8
¾
4
½
0
¾
-1
5/6
-2
For Internal Use Only - Do Not Duplicate
Copyright (c) 2009 by Motorola
CONFIDENTIAL AND PROPRIETARY
Adjacent Non-adjacent
channel channel
rejection rejection
(dB) per (dB) per
actual 802.11 a/b/g/n
hardware draft 2.0
standard
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard 32
requirement
Meet standard 29
requirement
Meet standard 27
requirement
Meet standard 24
requirement
Meet standard 20
requirement
Meet standard 16
requirement
Meet standard 15
requirement
Meet standard 14
requirement
Non-adjacent
channel
rejection
(dB) per actual
hardware
Not applicable
Not applicable
Not applicable
Not applicable
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
18