3 – 5
3.2.1 Tuning [TUNE]
AUTO
TUNE
This control is used to tune the receiver.
When the tuning does not match, the receiving sensitivity decreases and the operator may miss weak or
distant targets.
For manual tuning, adjust the TUNE control so that the target is displayed most clearly. If radar display
doesn't show radar return, adjust the control until the tuning bar on the lower left of the screen indicates its
maximum right.
Since it takes about ten minutes for the oscillation frequency of the magnetron to stabilize after the transmit
mode has been set, adjust the control again 10 minutes later.
3.2.2 Adjusting Sensitivity [GAIN]
GAIN
This control is used to adjust the receiving sensitivity of the radar. Turning it clockwise increases the
sensitivity and expands the radar picture observation range. Excessive gain, however, increases receiver
noises on the screen and could make target detection more difficult.
When sighting targets densely located on the screen or targets near the own ship, turn the knob
counterclockwise to reduce the sensitivity. If gain is set too low, weak or distant targets could be missed.
3.2.3 Adjusting CRT Brilliance [BRILL]
BRILL
This control is used to adjust the brilliance of the total screen. Turning it clockwise increases the brilliance.
Adjust it to the best condition for you.
3.2
Preparation
Содержание JMA-7710-6
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Страница 20: ...XVIII ...
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Страница 30: ...1 7 1 4 Fig 1 2 Outline Drawing of Scanner Unit Type NKE 1056 6M MASS APPROX 41 O UNIT mm ...
Страница 31: ...1 1 8 1 4 Fig 1 3 Outline Drawing of Scanner Unit Type NKE 1056 9M MASS APPROX 47 O UNIT mm ...
Страница 32: ...1 9 1 4 Fig 1 4 Outline Drawing of Display Unit Type NCD 3901 2 MASS APPROX 63 O UNIT mm hood CABLE INLET 25 8 ...
Страница 34: ...1 11 1 5 Fig 1 5 General System Drawing of Radar Type JMA 7710 6 ...
Страница 35: ...1 12 1 5 1 Fig 1 6 General System Drawing of Radar Type JMA 7725 6 ...
Страница 36: ...1 13 1 5 Fig 1 7 General System Drawing of Radar Type JMA 7725 9 ...
Страница 48: ...2 7 2 1 Screen Readouts 3 1 2 3 4 5 7 u i o y 1 0 q 2 t w e r 0 8 4 5 6 7 8 9 0 9 6 ...
Страница 50: ...2 9 2 1 Screen Readouts with ATA 3 1 2 3 4 5 7 u i o y 1 0 q 2 t w e r 8 4 5 6 7 8 9 0 9 6 ...
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Страница 217: ...7 7 1 Routine Maintenance 7 1 7 2 Maintenance of Each Unit 7 2 MAINTENANCE ...
Страница 220: ...7 3 7 2 Safety switch Fig 7 1 NKE 1055 Scanner unit Rear Safety switch Fig 7 2 NKE 1056 Scanner unit Rear ...
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Страница 277: ...9 AFTER SALES SERVICE ...
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Страница 281: ...10 10 1 Equipment Disposal 10 1 10 2 Disposal of Used Batteries 10 2 10 3 Disposal of Used Magnetron 10 3 DISPOSAL ...
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Страница 298: ...Appendix 2 Circuit Diagram of Radar Type JMA 7710 6 and JMA 7725 6 9 ...
Страница 299: ...Appendix 3 Terminal Board Connection Diagram of Radar Type JMA 7710 6 ...
Страница 300: ...Appendix 4 Terminal Board Connection Diagram of Radar Type JMA 7725 6 9 ...
Страница 301: ...Appendix 5 Primary Power Supply System Diagram of Radar Type JMA 7710 6 and JMA 7725 6 9 ...
Страница 302: ...Appendix 6 Internal Connection Diagram of Scanner Unit Type NKE 1055 ...
Страница 303: ...Appendix 7 Internal Connection Diagram of Scanner Unit Type NKE 1056 ...
Страница 304: ...Appendix 8 Internal Connection Diagram of Display Unit Type NCD 3901 2 ...
Страница 306: ...I I I I I I I I I I I I Appendix 9 2 Power Supply Connection Diagram of Display Unit Type NCD 3901 2 CBD 1448 2 2 ...
Страница 308: ...Appendix 10 NSK Log Selection Switches of Display Unit Type NCD 3901 2 ...
Страница 309: ...Appendix 11 Setting Table of the Speed Log Select Switches of Display Unit Type NCD 3901 2 ...
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