BW Broadcast RBRX1, Предварительное руководство

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Meters And Status LEDs
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RBRX1 M
ETERS
The RBRX1 has a very flexible metering system utilising a 256x64 pixel OLED display to provide detailed
metering of all of the units measurements. The RBRX1 provides five screens of meters which can be toggled by
pressing the "METERS" soft key.
Summary screen
This screen displays the tuner frequency, PS, PI and radio text in addition to left and right meters of the demod-
ulated received signal.
Audio processing screen
This screen indicates the amount of DSP signal conditioning that is being carried out on the received audio.
HI CUT
High frequency attenuation being applied, 0% corresponds to no attenuation, 100% corre-
sponds to maximum attenuation
IF BW kHz
IF filter bandwidth.
SOFTMUTE
Automatic attenuator, 0% corresponds to no attenuation, 100% corresponds to maximum
attenuation.
STEREO BLEND
Blending being applied, 0% stereo blending corresponds to maximum stereo separation,
100% stereo blending corresponds to mono.
Radio quality indicators screen
This screen displays the values of the various RF quality indicators that the tuner measures. These indicators
are used as inputs to the DSP signal conditioning block.
SIG (dBuV)
RF signal level in dB μ V.
PILOT (kHz)
Stereo pilot level in kHz
USN
Ultrasonic noise indicator
MULTIPATH
Multipath noise indicator
RDS screen
This screen provides additional RDS decoding not shown on the summary screen, including PTY, traffic status
flags and AF information.
I/O metering screen
The input meters show the level of the input audio. The meters are ‘hooked in’ to the DSP code after the input
level selection and mode options. The clip indicators represent the onset of the A/D convertors clip-point and
these should not light under any circumstances. Adjust the input gain control of the RBRX1 if they do.
Stereo MPX screen
The multiplex output metering represents the composite outputs peak level. This is a representation of the out-
put in relation to the peak composite level of the processing and not the actual level set by the multiplex output
level control.
RBRX1 S
TATUS
The main screen on the RBRX1 is mainly used for parameter adjustment, but when the unit is left idle for a few
seconds it displays some useful status indications
PST:
Indicates the currently active preset. If the active preset is loaded because of an alarm or trigger, it is pre-
fixed by '*'.
DIG:
Indicates the presence of an AES/EBU signal connected to the digital audio input of the RBRX1.
SRC:
Indicates which audio source is currently driving the multiplex generator. If the audio source is selected
because of an alarm or trigger, it is prefixed by '*'.