I re-installed UHD drivers, GNU Radio as well as gr-foo and gr-ieee80211 .
I started to run the transmitter with Performance Monitor but got the
following error:

ctrlport-monitor: radio.get threw exception (math domain error).

I tried looking for an explanation online but was unsuccessful. Any ideas
to the reason for the error. I am pretty sure it is not related to
gr-ieee80211.

Specs:
GNU Radio - 3.7.3
UHD Driver - 3.7.1
RF Front-End - NI USRP- 2920
OS - Ubuntu 12.04


On Wed, Jun 25, 2014 at 8:04 PM, Bastian Bloessl <bloe...@ccs-labs.org>
wrote:

> Hi Shashank,
>
>
> On 06/25/2014 01:48 PM, Shashank Sinha wrote:
>
>> I was trying to use gr-perf-monitorx while running Bastian's
>> gr-ieee80211 project. I was encountering the following error :
>>
>>
> I just reran the example and it works for me, but maybe you can run the
> performance monitor for a simple flow graph with GNU Radio blocks only,
> just to assure that the error is not related to the 802-11 stuff...
>
>
> Best,
> Bastian
>
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