F R O N T C O N S O L E
C H A P T E R 3
ADC2 L (Analog To Digital RX2 Left):
If the second receiver RX2 is installed, calculates the
level in dBFS (decibel full scale) of the Left input from the internal I/Q ADC for RX2. If RX2 is
not installed, displays -200.
ADC2 R
(Analog To Digital RX2 Right):
If the second receiver RX2 is installed, calculates
the level in dBFS (decibel full scale) of the Right input from the internal I/Q ADC for RX2. If RX2
is not installed, displays -200.
Off:
Used for debugging purposes or to save CPU cycles on slower machines.
TX Meters
Fwd Pwr (Forward Power):
Reads out forward power minus reflected power in Watts as
measured by the internal ADC on the PA. The meter shows average power.
Note:
In SSB, the typical male voice peak to average ratio is 14dB. This
means that without the compressor and/or compander enabled an
average
meter will only read 4-10W (with a typical voice) when
peaking
at 100W.
With the ALC we are using the average power. With these controls,
very high average power can be tolerated.
Ref Pwr (Reflected Power)
: Reads out reflected power as measured by the internal ADC on
the PA.
SWR (Standing Wave Ratio):
Reads out the standing wave ratio as calculated from the
measured forward and reflected power. (Only available with TUN on)
Mic:
Reads modulation power from -20 dB to 3 dB. Ideal operation will peak around 0 dB and
will rarely if ever hit 3 dB. If it is hitting 3 dB, the ALC is cutting back the power. Adjust the MIC
control on the front console to give more or less modulation.
EQ:
Reads the power in dB following the equalizer, where 0dB is ideal. If the equalizer is not
enabled, the equalizer power is equal to the Mic power.
Leveler:
Reads the power in dB following the leveler, where 0dB is ideal. The leveler attempts
to level the voice coming from the microphone as the head and mouth change position relative
to the microphone element. If the leveler is not enabled, this power is identical to EQ.
Lev Gain:
Reads the gain in dB currently being applied by the leveler.
ALC:
Reads the power in dB after the ALC, where 0dB is ideal.
ALC Comp:
Reads the gain in dB applied by the ALC algorithm. The gain is always <=0 in dB.
The minus sign is implicit.
CPDR:
Reads the power in dB after the compander, where 0dB is ideal. If the compander is not
enabled, it reads the same as Comp.
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2003-2008 FlexRadio Systems
