Link	Date	Data Rate	Format	Source	Description	OTA Frequency
	12 Sep 2005	256ksps / complex	Data / NBFM	Trunked Radio10	Public Service Band	860.2625 MHz
	12 Sep 2005	256ksps / complex	Multiple	LF9	WWVB / Loran-C	0.125 MHz
	12 Sep 2005	4msps / complex	DSSS Baseband	GPS8	GPS Snapshot (60 seconds)	1575.42 MHz
	12 Sep 2005	256ksps / complex	AM Baseband	AM Broadcast Band7	Broadcast Station KFYI	0.520 MHz
	24 Apr 2005	512ksps / complex	WBFM Baseband	FM Broadcast Band6	Broadcast Station KMPX	96.9 MHz
	24 Apr 2005	512ksps / complex	WBFM Baseband	FM Broadcast Band6	Broadcast Station KEZ	99.9 MHz
	24 Apr 2005	512ksps / complex	WBFM Baseband	FM Broadcast Band6	Broadcast Station KNIX	102.5 MHz
	24 Apr 2005	8msps / complex	NTSC	Signal Generator4	SMPTE Color Bars	69.750 MHz
	20 Apr 2005	4msps / complex	DSSS Baseband	GPS5	GPS Snapshot (500 mS)	1575.42 MHz
	25 Mar 2005	512ksps / complex	SSB - LSB / Data	Amateur Band3	Wide Band Width HF reception	14.200 MHz
	25 Mar 2005	4msps / complex	DSSS Baseband	GPS2	GPS Snapshot (500 mS)	1575.42 MHz
	25 Mar 2005	256ksps / complex	Multiple AM stations	AM Broadcast Band	Blah-Blah Talk Radio AM	0.600 MHz
	25 Mar 2005	256ksps / complex	AM / SSB - LSB	Amateur Band	HF reception	7.200 MHz
	25 Mar 2005	256ksps / complex	AM Baseband	SW / WWV1	HF reception	10.000 MHz
	24 Jan 2005	256ksps / complex	SSB - LSB	TS-2000X	SSB demonstration	50.300 MHz
	24 Jan 2005	256ksps / complex	SSB - USB	TS-2000X	SSB demonstration	50.300 MHz
	18 Jan 2005	256ksps / complex	AM Baseband	FFZ - ATIS	Single AM station at baseband	118.250 MHz
	18 Jan 2005	256ksps / complex	NBFM	NWS	Four (4) FM voice stations	162.475 MHz

¹⁰  Motorola 3600 bps Trunked Radio control channel.  NBFM traffic heard -25KHz lower.  Control channel indicated talk group was active and to switch to frequency.  Two 30 second samples of control channel with traffic.

⁹  LF (Low Frequency), almost so low you can "hear" it, that contains a wide variety of stations including WWVB at 60KHz and Loran-C at 100KHz.  Tune AM demod -25KHz to hear Loran-C and CW demod -65KHz to WWVB at 1 BPS.  Yes, one bit per second.

⁸  60 second capture.  Snapshot contains at least one set of ephemeris data.  A complete position fix is now possible.

⁷  Station that is broadcasting HD audio Ibiquity Digital.  HD audio in the AM band provides near FM station quality.  Basically the signal contains the standard AM program as well as an OFDM (64-QAM) upper and lower side band.  I wonder how good the linearity of the transmitter has to be for that?  The following is one of many Ibiquity Digital White Papers that describes the signal.

⁶  Full band-width FM broadcast signal.  Stations contain SCA (Subsidiary Communications Authorization) and RBDS (Radio Broadcast Data System).  The RBDS system provides song title, artist, station callsign, and other basic information that is displayed on common automotive receivers.  The RBDS signal is a 57KHz (3 x 19KHz pilot tone) sub carrier that is BPSK modulated at 1187.5 bps.  The full standard is contained in the US RBDS Standard dated April 9, 1998.

⁵  GPS snapshot taken at 0522 UTC on 21 Apr 2005.  SV 3, 8, 13, 16, 19, 20, 23, 27 and WAAS 35 and 47 were visible.  Additional details given in foot note 2 (two) below.

⁴  NTSC Video Carrier at -2.50MHz, Audio Carrier at +2.0MHz (1KHz modulation)

³  Amateur Radio contest in progress.  Large number of stations across the band.  60 second recording of band.

²  GPS snapshot taken at 0008 UTC on 26 Mar 2005.  SV 1, 3, 14, 15, 19, 21, 22, 25 and WAAS 47 were visible as reported by Garmin GPSmap 296 with v3.20 firmware.  Strong signal, open sky antenna used with down converter.  Sampled at 4msps, which is faster than required.  However, the CIC filters in the USRP don't give the full capture band width and roll off and fold back.  To capture the full band width of the GPS signal, over sampling was used.

¹  Radio Station WWV uses a set of special tones for frequency calibration and time dissemination.  These tones can be decoded with the USRP to provide accurate time information.