一般要求
电源为DC7.4V
频道设置符合无线电规则附录18的规定。
能够在单频和双频上工作。
能够使用话音进行遇险、紧急、安全和公共业务通信。
符合全球海上遇险安全系统（GMDSS）船用无线电通信设备技术要求。
"16"频道为红色独立的按键为求救频道。
技术条件依据是：IMOA.809（19）、GB15304-94、IEC61097-12、MSC.149（77）
设备外部设有符合A.809（19）附件1第13条这规定的标签。
General requirements
Power for the DC7.4V
Channel complying with the provisions of the Radio Regulations Appendix 18.
Able to work on single and dual-frequency.
Able to use voice for distress, urgency, safety and public service communication.
Line with the global maritime distress and safety system(GMDSS) requirements for marine radio communication equipment technology.
"16" channel for the red button to help the independent channel.
Technical requirements based on: IMOA.809 (19), GB15304-94, IEC61097-12, MSC.149 (77)
There should be consistent with the external device A.809(19) Annex 1, the provisions of section 13 of this label.
发射机部分
能够在156.300～156.875MHz频段内单频道工作。
能够在156.025～157.425MHz频段进行发射，在160.625～162.000MHz频段内进行接收。
发射功率5W,可手动选择低至1W。
发射音频谐波失真≤10%。
音频响应+1/-3dB of +6dB/octave。
交流噪声≤-40dB
频偏±5KHz。
寄生辐射≤0.25μW。
电流消耗:5W时1.3A。
Transmitter section
Able to 156.300～156.875MHz band single-channel work.
156.025～157.425MHz band can be transmitted in 160.625～162.025MHz band to receive.
Transmission power 5W, you can manually select as low as 1W.
Transmission audio harmonic distortion ≤10%.
Audio Response +1/-3dB of +6dB/octave.
AC Noise ≤-40dB
The maximum deviation ±5KHz.
Parasitic radiation ≤0.25μW.
When current consumption:5W 1.3A
接收机部分
调谐频率156.025～163.275MHz
中频21.7MHz，第二中频450KHz
信纳比为20dB时，可用灵敏度≤0.4μV
邻频道选择性≥70dB
寄生响应抑制≥70dB
互调抑制≥68dB
寄生发射抑制≤2nW
电流消耗音频输出时200mA；待机时20mA
音频响应+1/-3dB of +6dB/octave
交流噪声≤-40dB
音频输出功率：0.3W在带有8Ω负载失真10％条件下，内置扬声器0.5W
Receiver section
Tuning frequency 156.025～163.275MHz.
The first IF 21.7MHz, the second intermediate frequency 450KHz.
Noise by 20dB when the maximum available for the sensitivity of ≤0.4μV
Adjacent Channel Selectivity ≥70dB.
Spurious response suppression ≥70dB.
Intermodulation suppression ≥68dB.
Spurious emission suppression ≤2nW.
Maximum current consumption of the audio output 200mA、standby 20mA.
Audio response +1/-3dB of +6dB/octave.
AC Noise ≤-40dB.
Audio Output Power: 0.3W at 10% distortion with an 8Ω load conditions, the built-in speaker 0.5W.
