Aeroflex NAV 2000R Operation Manual page 28

Aeroflex Operation Manual
AUDIO
Selecting the audio control mode field places the NAV 2000R into VOR audio control mode. The audio
control mode, designated as the "VORa" mode, commands the NAV 2000R to allow the VOR audio
composite output to be varied. Within this mode, RF control is not allowed and the RF attenuator is fixed
for a minimum output level of -127 dBm. Also, no identification coding is allowed. The alternate VOR
mode of operation will continue until the VOR button is pushed while the VORa control page is selected.
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30 Hz FREQUENCY
Programs the 30 Hz frequency. The user may specify a frequency from within the 24.0 Hz to 36.0 Hz
range, with a resolution of 0.1 Hz. Any frequency, other than the default setting of 30.0 Hz, will cause the
VAL flag to be enunciated.
30 Hz %MOD
Programs the desired 30 Hz tone percent of modulation. This is a numeric field type and is
programmable from 0 to 99% in 0.01% steps. The default for this field is 30%. The "VALUE LIMITED TO
MAXIMUM" error will be displayed if the user tries to enter a 30 Hz percent modulation value causing the
total modulation to be more than 99% modulation. In this case, the system limits the 30 Hz modulation
field to a value that forces all modulation percents to total 99%.
9960 Hz FREQUENCY
Programs the 9960 Hz center frequency. The user may specify a frequency from within the 7968.0 Hz to
11952.0 Hz range, with a resolution of 0.1 Hz. Any frequency, other than the default setting of 9.960
KHz, will cause the VAL flag to enunciate.
9960 Hz %MOD
Programs the desired 9960 Hz tone percent of modulation. This is a numeric field type and is
programmable from 0 to 99% in 0.01% steps. The default for this field is 30%. The "VALUE LIMITED TO
MAXIMUM" error will be displayed if the user tries to enter a 9960 Hz percent modulation value causing
the total modulation to be more than 99% modulation. In this case, the system limits the 9960 Hz
modulation field to a value that forces all modulation percents to total 99%.
1020 Hz FREQUENCY
Programs the 1020 Hz frequency. The user may specify a frequency from 10.0 Hz to 18000.0 Hz with
0.1 Hz step resolution. Any frequency, other than the default setting of 1020.0 Hz, will cause the VAL flag
to enunciate.
1020 Hz %MOD
Programs the desired 1020 Hz tone percent of modulation. This is a numeric field type and is
programmable from 0 to 99% in 0.01% steps. The "VALUE LIMITED TO MAXIMUM" error will be
displayed if the user tries to enter a 1020 Hz percent modulation value greater than 99% or a modulation
value causing the total modulation to be more than 99% modulation. In this case, the system will limit the
1020 Hz modulation to a value that causes all modulation percents to total 99%.
NAV 2000R SIGNAL GENERATOR - REV. 0 – JULY 26, 2007 - PG 3-8