discuss-gnuradio
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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


From: Allen Vinegar
Subject: Re: [Discuss-gnuradio] gr-air-modes: problem with uhd and USRP1
Date: Wed, 1 Dec 2010 13:55:57 -0500

I am getting output like the following:
(-35) Type 11 (all call reply) from ac85cc in reply to interrogator 4
(-34) Type 11 (all call reply) from ac85cc in reply to interrogator 4
(-35) Type 11 (all call reply) from ac85cc in reply to interrogator 4
(-33) Type 4 (short surveillance altitude reply) from ac85cc at 5900ft
(-33) Type 0 (short A-A surveillance) from ac85cc at 5875ft
(-34) Type 11 (all call reply) from ac85cc in reply to interrogator 0
(-34) Type 0 (short A-A surveillance) from ac85cc at 5825ft
(-34) Type 0 (short A-A surveillance) from ac85cc at 5825ft
(-34) Type 0 (short A-A surveillance) from ac85cc at 5800ft
(-33) Type 0 (short A-A surveillance) from ac85cc at 5600ft
(-33) Type 0 (short A-A surveillance) from ac85cc at 5575ft
(-36) Type 11 (all call reply) from ac85cc in reply to interrogator 0



However I can't renewed output to GoogleEarth. On occasion I get a plane showing as in the attached file but I can't get a continually renewing display.



Any ideas on how to fix?



Thank you,

Al Vinegar





----- Original Message ----- From: "madengr" <address@hidden>
To: <address@hidden>
Sent: Monday, November 29, 2010 11:16 PM
Subject: Re: [Discuss-gnuradio] gr-air-modes: problem with uhd and USRP1



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)

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?


--
View this message in context: http://old.nabble.com/gr-air-modes%3A-problem-with-uhd-and-USRP1-tp30326133p30336873.html
Sent from the GnuRadio mailing list archive at Nabble.com.


_______________________________________________
Discuss-gnuradio mailing list
address@hidden
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Attachment: aal711.jpg
Description: JPEG image


reply via email to

[Prev in Thread] Current Thread [Next in Thread]