I have just start working with bladerf instead of former used hackrf hardware and I need to solve a problem. Currently I use the following bladerf hardware, libraries and firmware:
bladerf (2.0 micro xA9) libbladeRF version: 2.2.0-2018.12-rc3-2-ppabionic Firmware version: 2.3.2 FPGA version: 0.10.2 (configured by USB host)
I tried to simply upconvert an oqpsk baseband at 1100 MHz (4 Msps) with bladerf device using gnuradio (GRC 3.711) block osmocom-sink and I got a unexpected and pretty wierd baseband spectrum compared to hackrf hardware. For better understanding, I have attached some hardcopies:
From my point of view, I made identical setups for hackrf and bladerf device on osmocom-sink block. Later on downconverting and demodulation works very well with hackrf hardware, with bladerf device it totaly fails.
Any suggestions, I need to check or I just made wrong ? May I need to calibrate the bladerf hardware first for proper baseband processing ?
Many thanks in advance.
Best regards calenberger