First, the main function
\\ 1, the general call
\\ 2, DSC system
\\ Distress call
\\ Distress acknowledgment call
\\ Distress call relay
\\ Call (call option) of a ship
\\ Position request call
\\ Azimuth call transfer
\\ Selective call confirm call
\\ Of a fleet call (Call)
\\ Call (All Call) for all boats
\\ Calls to a certain area of ​​the ship (sea call)
\\ Semiautomatic telephone service
\\ DSC Test
\\ 3, close to the display and alarm
\\ 4, the Weather Alert (US Weather Bureau)
\\ 5, priority scan
\\ 6, dual channel listening
\\ 7, three channel listening
\\ 8, the timing clock
\\ 9,64 waypoints storage
\\ 10, 64 commonly used identification code storage
\\ 11, navigation
\\ 12, automatically record incoming message
\\Distress message: 32
\\ Other messages: 32
\\ Close the message: 72
\\ Second, technical indicators
\\ 1, the comprehensive index
\\ Frequency range: Launch: 156.025-157.425MHz
\\ Reception: 156.050-163.275MHz
\\ Modulation: FM: FM (16K0G3E) DSC (16K0G2B)
\\ Receiving system: two superheterodyne Frequency
\\ Frequency Tolerance: ± 10ppm (-20 ° + 60 °)
\\ Operating Voltage: 13.8V (± 15%)
\\ Antenna Impedance: 50 &;
\\ Audio output impedance :() & 8;
\\ :( Microphone input impedance) 2K &;
\\ Dimensions: W (153) × H (67) × D (132)
\\ Net Weight: 830g (± 2%)
\\ 2 emission indicators
\\ Output Power: ≤25W and 1W
\\ Modulation limit: ≤ ± 5KHz
\\ Modulation Sensitivity: 17mV ± 10mV
\\Audio distortion: ≤7%
\\ Adjacent channel components: ≥70dB
\\ Spurious: ≤-53dB
\\ Residual FM: ≥40dB
\\ Current consumption: Low Power High Power ≤6.0A ≤1.5A (DC13.8V)
\\ 3 receiving indicator
\\ Reference sensitivity: ≤0.25uV (12dB SINAD)
\\ Squelch Opening Sensitivity: ≤0.15uV
\\ Modulation receive bandwidth: ≥2 × 5KHz
\\ Deep squelch blocking threshold: ≥5KHz
\\ Adjacent channel selectivity: ≥65dB
\\ Intermodulation Immunity: ≥58dB
\\ Spurious Response Immunity: ≥65dB
\\ Audio output power: ≥2W (8 &;)
\\ Audio distortion: ≤7%
\\ GPS output formats: NMEA0183 (2.0)