These measurments are of the original VXSDR 20-160 board design; the production design incorporates improvements from the more recent VXSDR 20-600. The only change expected to the measured data below is in the transmit power: the output amplifier of the VXSDR 20-160 has been changed to improve manufacturability. This will change the transmit power by as much as +/- 5 dB from the original design shown below. We will update this page with measurements of the revised design when those boards arrive from manufacturing.
Measured at maximum RX gain (31.5 dB).
Measured at maximum TX gain (15.5 dB) with a digital input of 50% of full scale (16000 counts peak).
Measured at maximum RX gain (31.5 dB) with a −40 dBm input signal.
