W9077A Datasheet, PDF (3/15 Pages) Keysight Technologies – X-Series Measurement Application

03 | Keysight | N9077A & W9077A WLAN 802.11a/b/g/j/p/n/ac/af/ah X-Series Measurement Application - Technical Overview
RF Transmitter Tests
By using the X-Series signal analyzers with the WLAN measurement application, you
can perform WLAN transmitter measurements in the time, frequency, and modulation
domains. IEEE 802.11a,b,g, j, p signals, 802.11ah 1/2/4/8/16 MHz signals 802.11n
20 MHz and 40 MHz signals, 802.11af 6/7/8MHz, as well as 802.11ac 20/40/80/160 MHz
and 80+80 MHz signals with all modulation formats, as shown in Tables 3-5, respectively,
can be measured automatically.
Standard-based RF transmitter tests
RF transmitter test requirements for WLAN are defined in the IEEE 802.11 series
standard. Table 3 shows the required transmitter tests along with the corresponding
measure-ment applications.
Test reference numbers starting with 17 apply to 802.11a, those that start with 18 apply
to 802.11b, and those starting with 19 apply to 802.11g, as well as some 802.11a and
802.11b items, due to forward compatibility requirements. Table 4 and Table 5 show the
requirements for 802.11n and 802.11ac single-channel with test reference numbers that
start with 20 and 22. 802.11ah is defined in reference number starting from 24.
Table 1. Required 802.11a/b/g WLAN transmitter measurements and the corresponding measurements in the N/W9077A and 89600 VSA software
IEEE
IEEE IEEE
Transmitter test
802.11a/j/p 802.11b 802.11g
N/W9077A Option 2FP
WLAN measurement application
89601B Option B7R
WLAN modulation analysis
18.3.9.2
17.4.7.2 18.3.9.2 Transmit power
19.4.8.2
Channel power
Can be performed using band power
marker
18.3.9.3
17.4.7.4 18.3.9.3 Spectrum mask
147.4.7.4
Spectrum emission mask
Not available ¹
18.3.9.4 17.4.6.9 18.3.9.4 Transmission spurious
Spurious emission
Not available¹
18.3.9.5
17.4.7.5 18.3.9.5 Center frequency tolerance
19.4.8.3
Frequency error ²
Frequency error ²
18.3.9.6
17.4.7.6 18.3.9.6 Symbol (chip) clock
19.4.8.4 frequency tolerance
Symbol (chip) clock error²
Symbol clock error ²
18.3.9.7.1
18.3.9.7.1 Center frequency leakage
IQ origin offset ²
IQ offset ²
17.4.7.7
Power on/down ramp
Power vs time
Not available
17.4.7.8
RF carrier suppression
Carrier suppression ²
Not available
18.3.9.7.3
18.3.9.7.3 Spectral flatness
Spectral flatness
OFDM equalized channel frequency
resp.
18.3.9.7.4
18.3.9.7.4 Constellation error (EVM rms)
RMS EVM
EVM (rms)
18.3.9.8 17.4.7.9 18.3.9.8 Modulation accuracy test ³
Modulation analysis
Modulation analysis
1.  If 89601B with Option B7R is used with a Keysight spectrum or signal analyzer, these measurements are available as part of the spectrum analyzer mode
under the power suite measurements.
2.  For the N/W9077A application, these values are found in the “numeric results” trace under the modulation analysis view. For 89601B with Option B7R,
these values are found under the “Syms/Errs” trace.
3.  The standard describes the procedure for making this measurement, but doesn’t specify test limits.