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JRC JMA-922B-9XA User Manual

JRC JMA-922B-9XA
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3-68
3
3.8 Applied Operations
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3.8.3 Set Scanner Unit (TXRX Setting)
This function enables the setting of detail information about an antenna.
Procedures 1 Open the TXRX Setting menu by performing the menu operation below.
Main
RADAR Menu
TXRX Setting
The TXRX Setting menu will appear.
Detail information about antenna operation can be set by changing the settings of the
menu items.
[1] PRF Fine Tuning
Fine-tune the transmitting repetition frequency of the transmitter in the range 90 to 100%.
If radar’s interference patterns are concentrically displayed, increment or decrement the set value by 3 to
4 in order to heighten the effect of interference rejection.
One of 32 levels 0-31 can be set.
[2] Stagger Trigger
The interference reduction function is activated by using the transmission repetition frequency control of
the transmitter.
This function is effective when radar interference does not go away.
Off : Stagger Trigger is not used.
On : Stagger Trigger is used.
[3] PRF
Select the operation mode the transmitting repetition frequency of the transmitter.
Normal : Standard mode : Both appropriate gain and magnetron’s life
expectancy are maintained.
Economy : Power saving mode : Gain slightly lowers, but the service
life of magnetron is prolonged when short
pulses are used.
High Power : High gain mode : Gain improves when long pulses are used,
but the service life of magnetron is slightly
shortened.
[4] Ice Class Standby Mode
In this mode, the antenna is rotated when transmission is in the standby state.
This mode is effective to prevent the antenna's rotating shaft from freezing.
Off : The ice class standby mode is not used.
When transmission is in the standby state, the antenna also stops rotating.
On : The ice class standby mode is used.
When transmission is in the standby state, the antenna rotates.

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JRC JMA-922B-9XA Specifications

General IconGeneral
BrandJRC
ModelJMA-922B-9XA
CategoryMarine Radar
LanguageEnglish

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