Ais_rx

hello

i’m trying to work with gr-ais gui and after ais_rx runing i have
message
above:

[email protected] ~/src/gr-ais/apps $ ais_rx

linux; GNU C++ version 4.8.2; Boost_105400;
UHD_003.008.001-105-g91ae742f

– Operating over USB 3.

– Initialize CODEC control…

– Initialize Radio control…

– Performing register loopback test… pass

– Performing CODEC loopback test… pass

– Asking for clock rate 32.000000 MHz…

– Actually got clock rate 32.000000 MHz.

– Performing timer loopback test… pass

– Setting master clock rate selection to ‘automatic’.

– Tune Request: 162.000000 MHz

– The RF LO does not support the requested frequency:

– Requested LO Frequency: 162.000000 MHz

– RF LO Result: 162.000000 MHz

– Attempted to use the DSP to reach the requested frequency:

– Desired DSP Frequency: -0.000000 MHz

– DSP Result: -0.000000 MHz

– Successfully tuned to 162.000000 MHz

Tuned to 162.000MHz

Setting gain to 36

Gain is 36

Rate is 250000

Using Volk machine: avx_64_mmx_orc

Possible reasons:

  1. Inadequate antenna
  2. No line of sight to transmitting ships
  3. Incorrect subdevice or antenna specification

–n

On Wed, Mar 4, 2015 at 3:15 AM, Vladimir M. [email protected]

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