[Discuss-gnuradio] dbs_rx problems?

[Berndt Josef Wulf]

G'day,

I appear to have problems in getting the dbs_rx daughter to work. It may yet 
be another OS (NetBSD usb device) problem. Hopefully, it won't be hardware! 
Operation of the tvrx daughter board appears to be fine - receiving signals 
at around -100dbm sensitivity (is this what can be expected?).

I'm seeing the following errors when running the dbs_debug.py example:

barossa: {57} ./dbs_debug.py
RX d'board A: TV Rx
RX d'board B: DBS Rx
usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error

and when attempting to change the frequency using the slider 

usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error
usb_control_msg failed: error sending control message: Input/output error
Traceback (most recent call last):
  File "/usr/pkg/lib/python2.4/site-packages/gnuradio/wxgui/slider.py", line 
20, in <lambda>
    lambda evt : callback(evt.GetInt()))
  File "./dbs_debug.py", line 129, in set_rf_freq
    (success,actual_freq) = self.dbs.set_freq(1e6*freq)
  File "/usr/pkg/lib/python2.4/site-packages/gnuradio/db_dbs_rx.py", line 341, 
in set_freq
    (byte1,byte2) = self._read_status()
TypeError: unpack non-sequence

No signal is detected at any level of input. I also noticed that the MAXIM 
chip gets reasonably hot - is this normal?

Those that have it running, can you tell me which version of gnuradio and OS 
you're using? This may help me to track down the problem here.

Any help is very much appreciated.

cheerio Berndt

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