User's Manual

Model 1150A DVOR
Rev. - November, 2008
This document contains proprietary information and such information may not be disclosed
to others for any purposes without written permission from SELEX Sistemi Integrati Inc.
9-19
Figure 9-8 Sideband Phasing Diagram
NOTE
Bottom peaks within 5% of ground reference considered within tolerance.
9.7.13
Setting Transmitter Operating Parameters
Before the carrier forward power, carrier VSWR, SBO forward powers, and SBO VSWRs can be calibrated it will
be necessary to check/set Transmitter No. 1 and No. 2’s operating parameters.
9.7.13.1
Setting Transmitter Ident Code
Type RMS>>Configuration>>then enter Transmitter 1’s ident, then press [enter]. Transmitter No. 1’s new station’s
code will be entered into the station's temporary memory.
NOTE
The system will accept from 2 to 4 alpha or numeric characters for the ident code.
9.7.13.2
Setting Transmitter Voice Modulation
The Voice modulation is normally set to 0% when an external voice source is not connected. When a voice system
such as automated weather data is connected then select Transmitters>>Configuration>>Nominal. Enter the voice
modulation from 0% to 30%, then press [enter]. The new voice modulation will be entered into the station’s
temporary memory. Select Transmitters>>Configuration>> Offsets and Scale Factors. Set the Voice Modulation
Scale for a value of 100% for both Tx #1 and Tx #2.
9.7.13.3
Setting Transmitter Ident Modulation
a. Place Transmitter 1 on the antenna by pressing the Main #1 button on the LCU or PMDT.
b. Select Transmitters>>Configuration>>Nominal. Enter the identification modulation 8%, then press [F7].
The new ident modulation will be entered into the station’s temporary memory.
c. Select Transmitters>>Configuration>>Offsets and Scale Factors. For the Tx #1 Ident Modulation Scale for
Ident Modulation, enter a value from 0 to 200% to adjust the value entered into the Nominal setting to the
correct value as determined by the viewing Monitors>>Data screen.
d. Place Transmitter 2 on the antenna by pressing the Main #2 button on the LCU or PMDT.