Saturday October the 5th we have setup the antennas for the RF injections.
Logfile attached, we started with the 56MHz, then moved to 8MHz and at eventually the 6MHz
It seems that only the CEB receiving antenna works (even if with not clear results on the _mag_ respect to _I_ and _Q_), while NEB and WEB give strange results (see attached plot, done without RF injections).
Analysis will follow
I can now add some more detailed plots and informations:
The sweep signal for each frequency was performed with 101 points distributed linearly between -12500Hz and + 12500Hz around the central frequency, with a scanning time of 3600s (ie: 36s for each point, with a delta_f of 250Hz)
6 MHz and 8 MHz are visible only in CEB sensor, while 56 MHz is barely visible even in NEB (I and Q only)
WEB does not seem to work at all, NEB seems noisy at 6 and 8 MHz (or does not work), CEB has problems in the frequency _mag (it seems that there is a frequency offset for 6 and 8 MHz, not for 56 MHz) and it also has many artifacts (see a zoom plot) spaced ~100Hz from each injected line
Note: in ALL the plots attached here the color scale is always the same, only to facilitate comparison.
The noise projection of the RF injections can be found in the attached plot. There was no coherence between the injections and Hrec so only an upper limit is available. In anycase the effect is well below the sensitivy of the interferometer (More than a factor 10).
