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What type of interference is produced by other transmitters on the same frequency? （）
- A、Double interference
- B、Co-channel interference
- C、Adjacent channel interference
- D、Reflected interference
- E、Timing interference
参考答案
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单选题The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of（）.A
High frequency pulsesB
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Varied long and short pulses
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单选题Which set of rf characteristics is directly monitored by the core feature set products？（）A
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单选题When can routine communications be resumed on a frequency or channel on which radio silence has been imposed? （）A
After determining that the frequency or channel appears to be no longer in useB
After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communicationsC
After the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concludedD
Routine communications can resume if，in the Master's opinion，communications on that frequency or channel will not interfere with emergency communications
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Access point received-signal strength levelB
Spectrum utilizationC
Client data rateD
In-band radio frequency interference
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单选题What is the fundamental purpose for imposing radio silence? （）A
To ensure that interference to proprietary communications is minimizedB
To ensure that only voice communications can be effected on the distress frequency or channelC
To ensure that a distressed vessel will have a window twice each hour for transmitting routine messagesD
To ensure that interference on a particular frequency or channel to communications concerning emergency traffic is minimized
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多选题小区间干扰抑制技术主要包括有（）A小区间干扰随机化（Inter-cell interference randomisation）B小区间干扰消除（Inter-cell interference cancellation）C小区间干扰协调（ICIInter-cell interference coordination）D小区间干扰平均（Inter-cell interference average）
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