I missed a factor of 10 in the calibration.   Signal is
more like 0.16 fT and noise about 0.01 fT.

Here is flux density and phase lead measured at
29499.00000 in 30 minute integrations.

Phase lead slowly reducing so frequency is a smidgen
low of 29499.

Signal level is consistent with about 1mW or so ERP if
LWPC is believed.

 2014-03-02_00:00:00 0.01 fT  159.7 deg
 2014-03-02_00:15:00 0.09 fT   99.9 deg
 2014-03-02_00:30:00 0.13 fT   93.5 deg
 2014-03-02_00:45:00 0.12 fT   93.1 deg
 2014-03-02_01:00:00 0.11 fT   82.8 deg
 2014-03-02_01:15:00 0.13 fT   80.8 deg
 2014-03-02_01:30:00 0.16 fT   84.3 deg
 2014-03-02_01:45:00 0.15 fT   75.5 deg
 2014-03-02_02:00:00 0.11 fT   55.6 deg
 2014-03-02_02:15:00 0.11 fT   47.7 deg
 2014-03-02_02:30:00 0.11 fT   34.1 deg
 2014-03-02_02:45:00 0.12 fT   25.9 deg
 2014-03-02_03:00:00 0.13 fT   32.2 deg
 2014-03-02_03:15:00 0.13 fT   26.2 deg
 2014-03-02_03:30:00 0.14 fT   21.0 deg
 2014-03-02_03:45:00 0.12 fT   21.7 deg
 2014-03-02_04:00:00 0.09 fT   20.5 deg
 2014-03-02_04:15:00 0.13 fT   10.0 deg
 2014-03-02_04:30:00 0.15 fT    3.9 deg
 2014-03-02_04:45:00 0.15 fT    8.0 deg
 2014-03-02_05:00:00 0.15 fT   13.2 deg

--
Paul Nicholson
--