Preliminary performance measurements of VXSDR-20 v. 1.1.4 board number 0002 on September 7-9, 2021.

We are still tuning the radio's internal settings (particularly the LO synthesizers), so there may be slight changes in performance with the final version. Any changes should be minor (1 dB or less).

Receive Noise Figure

Measured at maximum RX gain (31.5 dB).

Noise figure graph

Transmit Power

Measured at maximum TX gain (15.5 dB) with a digital input of 50% of full scale (16000 counts peak).

Transmit power graph

Receive Sensitivity

Measured at maximum RX gain (31.5 dB) with a −40 dBm input signal.

Receive sensitivity graph