Initial Operation And Checkout - Raytheon Pathfinder 1200 Instruction Manual

4.6 INITIAL OPERATION AND CHECKOUT
4.6.1 Inspection After the Installation
After completing the installation, it is necessary to assure that all the steps of the
installation were accomplished in accordance with the instructions.
In particular, inspect to insure that the cables are not crimped or damaged and an
input voltage connected accurately; voltage linking is correct; the securing bolts of each
equipment are tightened; a water leak has not occurred in the Scanner Unit, and that
the connection of the cable shield is made properly to RF ground.
~.6.2 Operational Check
Apply power to radar and switch to standby (STBY). In approximately 90 seconds
the READY light should glow.
Switch radar to ON and observe presence of a sweep line which originates from the
center of the CRT and extends to the edge. Switch on the range markers and while pushing
the range selector through each range scale, observe that the sweep is the correct length and
has the proper number of range rings. Observe that the range markers are focused properly.
Rotate GAIN control and observe the presence of targets and noise. Rotate SEA
CLUTTER control on 1/2 mile scale and note the reduction of close in gain and targets.
After approximately 10 minutes of operation, rotate the TUNE control and observe
that maximum target returns occur at the center of the TUNE range.
If readjustment of the display or T/R is required, refer to paragraph" 5.1.1 and 5.1. 2.
4.6.3 Relative Bearing Alignment
This alignment must be carried out by the engineer when installation is complete.
When the ship is underway, proceed as follows:
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Identify a suitable target (e.g., ship or buoy etc.) preferably between 1.5 and 3 nm in
range on the screen.
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READ switch
for SHM
SCREW
Fig.4-5 RELA TlVE BEARING ALIGNMENT
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