Rack-Mount RDMS
TM
Telemetry Receiver
29
Quasonix, Inc.
Frequency, mode, and bit rate changes, or any changes to a preset, cause the Modulation Scaling setting to revert
back to Tracking. This is because the optimal signal monitoring is no longer valid.
Note:
Whenever the Diversity Combiner is On, any changes made to the Frequency option (even with Frequency
Diversity On enabled) causes Modulation Scaling for both channels to be set to Tracking.
Figure 35: Main Menu, Modulation
Scaling
– Tracking
Figure 36: Red Eye Pattern Display -
Tracking
The graphing eye pattern is displayed in red when in Tracking mode.
If there are two channels, and the Combiner is set to On, the Modulation Scaling controls for setting the modes are
linked. In Acquire or Tracking mode, the actual scaling operation functions independently in each channel.
4.1.4.10.2 Modulation Scaling - Locked
When the RDMS™ has a good lock on the target transmitter, Modulation Scaling should be set to Locked by
highlighting the Mod Scaling option on the Main Menu and then pressing the Enter key on the keypad.
When Modulation Scaling is set to Locked, the graphing eye pattern is displayed in green, indicating the optimal
modulation index is set.
Figure 37: Main Menu, Modulation
Scaling
– Locked
Figure 38: Green Eye Pattern Display
- Locked