caption: a table shows an exvm and an exvm in one table
exif: {"Image DocumentName": "TX EVM Requirement for 11ac", "Image ImageDescription": "January TX EVM Requirement for 11ac. Propose -30/-32 dB for 256-QAM 3/4 and 5/6. Difference between TX EVM requirement and RX sensitivity requirement is more consistent with other MCSs. A. B. MCS. Bits/ Sub-carrier. TX EVM Requirement [dB] SNR Required to Achieve 10% PER  [dB] A+B [dB] BPSK \u00bd QPSK \u00bd QPSK \u00be QAM \u00bd QAM \u00be QAM 2/ QAM \u00be QAM 5/ QAM \u00be QAM 5/ Avg   1x1, 80 MHz, no analog impairments, perfect channel estimation. Youhan Kim et al.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}