PXIe-5842 VST with S-Parameters Modulation Quality

WLAN Modulation Quality

Table 214. WLAN EVM (dB), Measured

PXIe-5842 VST with S-Parameters
Center Frequency 80 MHz 802.11ax* 160 MHz 802.11be† 320 MHz 802.11be‡
5.180 GHz -53.2 -51.7 -49.2
5.925 GHz -53.7 -52.5 -49.5
7.125 GHz -53.4 -51.9 -49.5
Conditions: PORT 2 loopback to PORT 1; 16 OFDM data symbols; 20 packet averages; channel destination type: Ch Estimation Ref (Preamble and Pilots); Average Power Level = -10 dBm; Reference Level = Average Power Level + Waveform PAPR; RF OUT Digital Gain Servo technique (increase RF OUT Digital Gain until DSP overflow reported) applied; ModAcc Auto Level: Enabled; Noise Compensation: Disabled; Reference Level headroom: 1 dB (default)
  • *: Waveform PAPR: 9.95 dB; MCS index: 11
  • †: Waveform PAPR: 11.41 dB; MCS index: 13
  • ‡: Waveform PAPR: 12.01 dB; MCS index: 13

Cellular Modulation Quality: 5G NR FR1

Table 215. 5G NR FR1 (dB), Measured

PXIe-5842 VST with S-Parameters
Center Frequency 1 CC × 100 MHz* 2 CC × 100 MHz† 4 CC × 100 MHz‡
4 GHz -54.5 -52.2 -50.1
5 GHz -55.1 -53.1 -50.8
Conditions: NR downlink, FDD, FR1, 256-QAM, fully filled resource blocks; RF OUT loopback to RF IN; Average Power Level = -10 dBm; Reference Level = Average Power Level + Waveform PAPR; ModAcc Auto Level: Enabled; RF OUT digital gain servo technique (increase RF OUT digital gain until DSP overflow reported) applied; 2 slots analyzed; 1 packet averages; Noise Compensation: Disabled; Reference Level headroom: 1 dB (default).
  • *: 1 × 100 MHz carrier: 30 kHz subcarrier spacing, 11.62 dB PAPR
  • †: 2 × 100 MHz carrier: 30 kHz subcarrier spacing, 11.87 dB PAPR, CC 0 and 1 averaged
  • ‡: 4 × 100 MHz carrier: 30 kHz subcarrier spacing; 12.29 dB PAPR; CC 0, 1, 2, and 3 averaged

Cellular Modulation Quality: 5G NR FR2 at IF Frequencies

Table 216. 5G NR FR2 at IF Frequencies (dB), Measured

PXIe-5842 VST with S-Parameters
Center Frequency 1 CC × 100 MHz* 2 CC × 100 MHz† 1 CC × 400 MHz‡ 2 CC × 400 MHz** 4 CC × 400 MHz††
5.801 GHz -56.5 -54.2 -52.0 -49.5 -45.1
10 GHz -53.9 -51.8 -49.7 -47.9 -44.2
18 GHz -50.4 -48.3 -46.5 -44.5 -42.3
Conditions: NR downlink, FDD, FR2, 256-QAM, fully filled resource blocks; RF OUT loopback to RF IN; Average Power Level = -10 dBm; Reference Level = Average Power Level + Waveform PAPR; 2 slots analyzed; 1 packet averages; ModAcc Auto Level: Enabled; RF OUT digital gain servo technique (increase RF OUT digital gain until DSP overflow reported) applied; Reference Level headroom: 1 dB (default).
  • *: 1 × 100 MHz carrier: 120 kHz subcarrier spacing, 11.04 dB PAPR
  • †: 2 × 100 MHz carrier: 120 kHz subcarrier spacing, 11.56 dB PAPR; CC 0 and 1 averaged
  • ‡: 1 × 400 MHz carrier: 120 kHz subcarrier spacing, 11.87 dB PAPR
  • **: 2 × 400 MHz carriers: 120 kHz subcarrier spacing, 11.80 dB PAPR; CC 0 and 1 averaged
  • ††: 4 × 400 MHz carriers: 120 kHz subcarrier spacing, 12.76 dB PAPR; CC 0, 1, 2, and 3 averaged

Error Vector Magnitude

Table 217. 64-QAM EVM (dB) by Average Power Level, Typical

PXIe-5842 VST with S-Parameters
Center Frequency 0 dBm -30 dBm
100 MHz to 600 MHz -51 -51
>600 MHz to 2 GHz -55 -54
>2 GHz to 3 GHz -53 -51
>3 GHz to 8 GHz -53 -53
>8 GHz to 12 GHz -53 -53
>12 GHz to 16 GHz -52 -51
>16 GHz to 18 GHz -50 -49
>18 GHz to 22 GHz -50 -50
>22 GHz to 24 GHz -49 -48
>24 GHz to 26.5 GHz — -48
Conditions: RF OUT loopback to RF IN with 3 dB attenuator in the loopback; 12.5 MHz bandwidth 64-QAM modulated signal; pulse-shape filtering: root-raised cosine, alpha = 0.25; PXIe-5842 RF input reference level and RF output power level set to value specified; Offset Mode is Automatic; acquisition length: 300 µs.
Figure 68. 64-QAM EVM vs. Average Power, Measured.

PXIe-5842 VST with S-Parameters

Conditions: RF OUT loopback to RF IN with 3 dB attenuator in the loopback; 12.5 MHz bandwidth 64-QAM modulated signal; pulse-shape filtering: root-raised cosine, alpha = 0.25; Offset Mode is Automatic; acquisition length: 300 µs

Figure 69. 64-QAM EVM vs. Center Frequency, Measured.

PXIe-5842 VST with S-Parameters

Conditions: RF OUT loopback to RF IN with 3 dB attenuator in the loopback; 12.5 MHz bandwidth 64-QAM modulated signal; pulse-shape filtering: root-raised cosine, alpha = 0.25; PXIe-5842 RF input reference level and RF output power level set to value specified in legend; Offset Mode is Automatic; acquisition length: 300 µs