reference signal | reference-input signal

reference-phase signal [ reference signal ]

fixed wayside signal [ trackside signal ]

continuing signal reference signal

insertion reference signal | insertion test signal | IRS [Abbr.] | ITS [Abbr.]

TRS-ID | time reference signal identification

fixed point (1) | control point (2) | reference point (3) | fix (4)

“Network” refers to transmission systems and, where applicable, switching or routing equipment and other resources that permit the conveyance of signals by wire, radio, optical or other electromagnetic means, including satellite networks, fixed and mobile terrestrial networks, networks used for radio and television broadcasting, and cable TV networks.

“Network” refers to transmission systems and, where applicable, switching or routing equipment and other resources that permit the conveyance of signals by wire, radio, optical or other electromagnetic means, including satellite networks, fixed and mobile terrestrial networks, networks used for radio and television broadcasting, and cable TV networks.

The conditions for obtaining NMR spectra are as follows:- a constant probe temperature (e.g. 302 K); - acquisition time of at least 6,8 s for 1 200 Hz spectral width (16K memory) (i.e. about 20 ppm at 61,4 MHz or 27 ppm at 46,1 MHz); - 90° pulse; - adjustment of acquisition time: its value must be of the same order as the dwell time; - parabolic detection: fix the offset 01 between the OD and CHD reference signals for ethanol and between the HOD and TMU reference signals for water; - determine the value of the decoupling offset 02 from the proton spectrum ...[+++] measured by the decoupling coil on the same tube.