Northrop Grumman Sperry Marine VisionMaster FT, Руководство пользователя

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Basic Operation of Radar Radar/Chart Radar User Guide
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Radar Fine Tuning
The radar tuning indicator is located in the
bottom left hand of the display, below the video
processing controls.
The current level of tuning is indicated by the
shaded bar adjacent to the
Tune caption and is
continuously updated. This bar indicates the level in percentage terms with
0% on the left, 100% on the right. The tuning indicator can only be
adjusted manually if the system is configured as a Master radar.
The two tuning modes are
AFC and Manual , with the default mode as
AFC. The tuning mode may only be adjusted when the system is in
Transmit.
For a Master display there are three tuning controls:
 AFC on/off
 Manual fine tune
 Coarse tune (Diagnostics)
The tuning indicator may also be accessed from the Transceiver window,
see Chapter 11, Radar.
In a multi-node system the coarse and fine tune levels are distributed and
used by other nodes on the system.
For accurate tuning to be achievable, coarse tuning must have been
correctly adjusted during initialisation. Refer Chapter 2 `
Diagnostics and
Commissioning’ in Volume 2 of VMFT Ship's Manual.
To select between Manual or AFC tuning.
1. Position the screen cursor over the AFC/Manual selection field.
2. Left click to toggle the tuning control
to Manual or AFC.