一般要求
接收频率
518KHz、490KHz、4209.5KHz、486KHz
可同时接收通道
双通道(即一个接收机工作在518KHz通道,另一个接收机可以在490KHz/4209.5KHz、486KHz之间切换)。
灵敏度
有用信号电平在-107dBm时,误码率＜4%
选择性抗干扰性能
阻塞抑制比:按照IEC61097-6标准规定频率的强信号干扰下,收到有用信号误码率＜4%
同频干扰抑制比:在同频于(按照IEC61097-6标准)收到有用信号误码率＜4%
互调:在两个不同干扰源的同时干扰下(按照IEC61097-6标准规定的频率和电平)收到有用信号误码率＜4%
天线保护
在天线端加上无调制信号幅度30V(e.m.f)。
频率范围100kHz～28MHz,15分钟之后设备仍可正常工作。
显示器规格
800×480点阵154×85.9mm(7英寸彩色屏幕)
信息存储功能
可存储200条信息,平均每条信息500字符,存储时间为60～72小时。被标记信息可以**保存,用户不可自行删除。
外部接口
一个打印输出接口。
发声报警
音量不小于75dBA～85dBA
电源
12V～24V DC
本技术条件的法规依据
IMO Resolution MSC 148(77),IEC 61097-6,IEC60945(2002)
General requirements
Receiving frequency
518KHz,490KHz,4209.5KHz,486KHz
Receive Channels simultaneously
Dual-channel(ie,a receiver operating in 518KHz channel, the other receiver can switch between the 490KHz/4209.50KHz,486KHz)
Sensitivity
Useful in -107dBm signal level ,the bit error rate less than or equal to 4%
Selective anti-jamming performance
Blocking rejection ratio: In accordance with IEC61097-6 standards for frequency of strong signal interference , the received useful signal bit error rate less than or equal to 4%;Co-channel interference rejection ratio: interfering sources in the same frequency interference (in accordance with IEC61097-6 standard) received useful information such as number of bit error rate of less than At 4%Intermodlation: At the same time two different sources of interference (in accordance with IEC61097-6 standards for frequency and level) received useful signal error Rate is less than or equal to 4%
Antenna protection
In the antenna signal with no modulation amplitude emf 30V.
Frequency range of 100KHz～28MHz,15 minutes after the device can still work
Display Specifications
240×128 dot matrix 144mm×104mm
Information storage
Can store 200 messages, with an average of 500 characters each message, the storage time is 60～72 hours. Information can be stored permanently marked with users can not manually delete them.
External Interface
A print output
Andible alarm
Volume of not less than 75dBA～85dBA
Power
12V～24VDC
The method according to technical requirements of the regulations IMO Resolution MSC148(77).IEC 61097-6,IEC60945(2002)
