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.

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

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.