细节展示放大镜特效

Fishery radio station

  • No:FT-801
  • Quantity:

    FT-801 Flyway FT-801 Fisheries Special Radio (Double Signaling) with ZY Fisheries Inspection Certificate

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    I. Main Functions

    1. General voice calls

    Channel 2 and 4 on duty (221, 231, 236, 238)

    3. Double signaling (300 baud ASK, 1200 baud MSK)

    4. Emergency call to all ships (distress call)

    5. Call to a ship (optional call)

    6. Quick Call to a Ship (Quick Call)

    7. Calls to a fleet (group calls)

    8. Request for Ship Position Return

    9. Timing and Manual Position Return

    10. Radio Telephone Transfer Function

    11. Receiving Full Call, Sea Call and Weather Alarm

    12. Receiving Location Instructions

    13. GPS Navigation Function

    14. AM Radio Function

    15. Voice Encryption Function (Need to be Purchased)

    16. Storage Function of Common Ship Numbers

    17. Automatic recording of incoming messages

    18. Full Channel Scanning

    19. Turn on the radio at regular intervals

    20. Timing alarm clock function

    21. Low Voltage Alarm Function

    22. Memory Channel

    23. Point Storage Function

    II. Technical Indicators

    1. Whole machine part

    Frequency range: 27.5-39.5 MHz

    Channel spacing; 25KHz

    Number of channels: 480

    Modulation: FM (16KOJ3E)

    Working Voltage: DC 12V or 24V

    Signaling format: 300 baud ASK, 1200 baud MSK

    2. Launch section

    Frequency tolerance: <20 ppm

    Carrier power: <25W

    Modulation limitation: <5KHz

    Audio distortion: <7%

    Modulation characteristics: & plusmn; 3dB (relative 6dB per octave)

    Modulation sensitivity: <15 mV

    Stray Scattering Frequency Component: <5uW

    3. Receiving Part

    Reference sensitivity: <0.2uV (SINAD12dB)

    Deep noise opening sensitivity: <0.6uV

    Deep noise blocking threshold: > 5KHz

    Audio output power: > 2

    Audio distortion: <7%

    Audio response: +2-8dB (relative 6dB per octave)

    Modulation Receiving Bandwidth: > 2*5KHz

    Neighborhood selectivity: > 65dB

    Spurious response immunity: > 65dB

    Intermodulation immunity: > 58dB

    Sensitivity of data reception: <0.2uV (correct reception)

    AM radio frequency: 500KHz-999999KHz