I've recently purchased a Tsunami (must have been old stock I think!) however I'm having some issues with it.
I cannot seem to get an even frequency sweep - it drops off markedly below ~50Hz and above ~800kHz.
I have an Arduino driven AD9850 DDS module, and that is almost perfectly flat between 10Hz -> 1MHz+
Additionally, when I run the Tsunami test suite, I am seeing failures as below:
Test suite output:
Executing test suite...
# usb_id = 583430353230158C10
Read USB ID... OK
# input_offset = 58
Test zero offset... OK
# output_offset_neg = -1270
Test offset adjustment... FAIL
output_offset_neg: -1270 is not between -1239 and -839
# input_amp_6 = 3248
# input_amp_1 = 605
# input_amp_0 = 83
Test amplitude adjustment... FAIL
input_amp_0: 83 is not between -3280 and -2980
# input_freq_1k = 1000
# input_phase_1k = 30
Test frequency and phase... FAIL
input_phase_1k: 30 is not between 999 and 1001
Press enter to rerun test suite.
Are these failures normal? I note that someone else on the forum has reported these too.
I am using what I believe to be the latest libraries as I only downloaded and installed it all during this past week.