Hello all - I am trying to transmit a test waveform from an N310 using the
sample program tx_waveforms. When I set "tx_lo_source=external" I get the error
below. When I set it to internal, the program runs smoothly, but there is no
output. I am supplying an external LO at twice the desired outpu
Hi Jonathan,
At startup, the init_cal will always be conducted at 2.5GHz requiring an
external LO at 5 GHz. After the init cal, then you can re-tune your
external LO to twice the desired operating frequency. It wasn't clear to
me from your comment if your external LO is initially configured to 5
On 30/11/2022 17:46, Rob Kossler wrote:
Hi Jonathan,
At startup, the init_cal will always be conducted at 2.5GHz
requiring an external LO at 5 GHz. After the init cal, then you can
re-tune your external LO to twice the desired operating frequency. It
wasn't clear to me from your comment if y
Hi Jonathan,
What Rob said is correct. You need to supply a 5 GHz LO initially so that
the startup calibrations for the N310 will be correct. However, if I
recall correctly, the device should still initialize even with an LO not
equal to 5 GHz (though your going to see imaging / possible LO leak
Thanks for the responses everyone. Adding the "init_cals=BASIC" argument got
rid of the error (I suppose a band-aid until I can grab a higher frequency sig
gen). I was only supplying a 2 GHz signal, but it was at +3 dBm. I'll have to
experiment the power.
Thanks for the help.
Thanks,
Jonathan
