Rf Level Entry; Vor Mode Field Definitions - Aeroflex NAV 2000R Operation Manual

3.5.4.5 RF LEVEL ENTRY

Most all of the modes have an RF level control bubble associated with them. This field allows the RF
level to be programmed. The RF level may be programmed with 1/10th dBm resolution using either dBm
or uV/mV units. DBm numbers are entered using the ENT key. Microvolts and millivolt numbers may be
entered using the uV and mV keys (STO/RCL) respectively. The default displayed units (normally dBm)
may be changed by pressing the SEL key and then pressing either the uV, mV, or dBm keys. The RF
level field is "global" to the other modes which control RF level. That is, if the RF level is changed in one
mode, it is changed for all the other modes alike.

3.5.5 VOR MODE FIELD DEFINITIONS

VOR test mode is entered by pressing and releasing the VOR mode button. This mode is used to test
and align VOR receivers. The VOR mode parameter fields are described in this section.
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RF LEVEL
This field allows the RF level to be programmed. The RF level may be programmed with 1/10th dBm
resolution using either dBm or uV/mV units. DBm numbers are entered using the ENT key. Microvolts
and millivolt numbers may be entered using the uV and mV keys (STO/RCL) respectively. The default
displayed units (normally dBm) may be changed by pressing the SEL key and then pressing either the
uV, mV, or dBm keys.
BEARING
The desired omni bearing is programmed from 0 to 359.99 degrees in 0.01 degree steps. The default
bearing is 0 degrees.
TO/FROM
This field specifies whether the bearing reference is TO or FROM. This field is a discrete toggle type field
and the default reference is set to 'FROM'.
FREQ. MHz
This field allows the RF frequency to be programmed. The RF frequency may be programmed in 0.00001
MHz steps within the NAV 2000R frequency range of 0.15000 MHz to 450.00000 MHz.
CHANNEL
This field steps the RF frequency output up and down in 50 KHz steps using the cursor control up and
down arrow keys.
TOTAL %MOD
This field allows changing all the percent modulation fields respective to one another. That is, changing
the total percent modulation will allow all current modulations to be changed equally, maintaining the
ratios between one another. For example, suppose the 30 Hz modulation is set to 30%, 9960 Hz
modulation is set to 20%, and the ident tone 1020 Hz modulation is set to 10%. This indicates a total
sum of 60%. If the total percent modulation was changed from 60% to 30%, the new component percent
modulations would be 15%, 10%, and 5% respectively.
NAV 2000R SIGNAL GENERATOR - REV. 0 – JULY 26, 2007 - PG 3-7
Aeroflex Operation Manual