Re: [Discuss-gnuradio] gr-air-modes: problem with uhd and USRP1

[Nick Foster]

On Mon, 2010-11-29 at 20:16 -0800, madengr wrote:
> Nick,
> 
> Got it working on my USRP2 by changing to line 57 to:
> self.u = uhd.single_usrp_source("addr=192.168.1.15",
> uhd.io_type_t.COMPLEX_FLOAT32)
> 
> and line 119 to:
> result = self.u.set_center_freq(freq,0)

That's correct. The Github repo has the latest changes to make this work
as well.

> 
> I'm getting 0 aircraft locations in the KML file but the stdout is as
> follows:
> 
> (-40) Type 11 (all call reply) from e9fc9f in reply to interrogator 5
> (-41) Type 11 (all call reply) from 2c4e09 in reply to interrogator 0
> 
> I assume these are Mode-S packets, thus no position info?

Those are interrogator replies which contain no information except the
ICAO number of the aircraft and the interrogator ID.

--n
> 
>