Re: [Discuss-gnuradio] Error executing usrp2_wfm_rcv.py

[Marcus D. Leech]

On 07/06/2011 9:58 AM, Eduardo Lloret Fuentes wrote:

Hello.

Can this variable "step_size" have an arbitrary value? I tried several times and I always get this message:

(python:3293): Gtk-CRITICAL **: IA__gtk_range_set_range: assertion `min < max' failed

and nothing at the USRP2 output (around -400 dB)

By the way, I am using BasicRX.

OK, found the problem.  The problem is that for a BASIC_RX, the available settable gain range is [0,0], since it has no settable gain elements.
  Which means the slider won't work properly.  Perhaps  one could put in a conditional prior to creation of the slider that checks for [0,0].
  And doesn't create the slider at all if there is no usable gain range.

Thanks!