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Chapter 7 INITIAL SETTINGS
137
7.4 TUNING ADJUSTMENT
The physical dimensions of the magnetron tube in the transmitter dictate the precise transmitter output
frequency of the particular set.
The tuning function control fine-tunes the receiver circuits to match their maximum sensitivity to that
transmitted signal. Tuning adjustment is necessary for maintaining a high performance.
But the tuning adjustment had been already set at the factory. This adjustment value should not be changed
greatly when started up the radar at first.
7.5 ANTENNA HEIGHT SET UP
Set up the antenna height.
This set up is related to sea clutter rejection control.
At a short range, sea clutter level is proportion to the height of the scanner.
Thus, an optimum sea clutter rejection constant must be selected according with the height of antenna.
䐡
Adjust the tuning adjustment bar
to more than 8 scales.
㻌
䐠
MULTI control or cross key
change the value.
䐟
Select
㻌 䇾
Tune
㻌
Adjustment.
䇿㻌
Tune Adjustment bar
䐠㻌
Select an appropriate antenna height.
䐟
Select “Antenna Height.”
㻌
Summary of Contents for JMA-3400 Series
Page 2: ......
Page 23: ...WARNING LABEL MOUNTING POINT xxi NKE 2103 4 4HS 6 6HS SCANNER UNIT NCD 2364 DISPLAY UNIT ...
Page 31: ...EQUIPMENT APPEARANCE xxix NKE 2043 SCANNER UNIT NKE 2063A AHS SCANNER UNIT ...
Page 32: ...EQUIPMENT APPEARANCE xxx NKE 2103 4 4HS 6 6HS SCANNER UNIT ...
Page 34: ...EQUIPMENT APPEARANCE xxxii Fuse ...
Page 48: ......
Page 51: ...Chapter 1 INSTALLATION 3 1 2 3 DIMENSIONAL DRAWING OF DISPLAY MOUNTING ...
Page 56: ...Chapter 1 INSTALLATION 8 FLUSH MOUNTING TEMPLATE Note Please note the paper size ...
Page 85: ...Chapter 2 THE BASIC OPERATION 37 2 2 OPERATION UNIT ࢫࣆ ձ ղ ճ մ յ ն շ ո չ պ վ տ ւ ջ ռ ս ր ց ...
Page 266: ...Chapter 13 SPECIFICATIONS 218 13 1 SCANNER DIMENSION 13 1 1 NKE 2043 ...
Page 270: ...Chapter 13 SPECIFICATIONS 222 13 2 DISPLAY DIMENSION 13 2 1 NCD 2364 ...
Page 283: ...235 Chapter 13 SPECIFICATIONS MEMO ...
Page 293: ...APPENDIX A 10 MEMO ...
Page 313: ......