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VHF Data Transmitter
Description:

REMOTE CONTROL or TELEMETRY TRANSMITTER
  • Frequency: 135 to 175 MHz.      by 10 MHz sub-bands.
  • Output power: 1 to 7 W ( factory setting ).
  • VSWR < 1.5.
  • Admissible load VSWR: 
    • infinite all phases
    • output mismatch protection.
  • RF output impedance: 50 ohms.
  • Synthesized.
  • Frequency step: 12.5 kHz.
  • PLL acquisition time: < 2s.
  • Frequency accuracy: ±1 ppm at 25 °C.
  • Frequency stability: ±2.5 ppm from -10°C to +70°C.
  • Modulation: FSK/FM.
  • Data rate: ≤ 38.4 kbits/s.
  • Data input: RS232 or RS485 ( factory setting ).
  • Input impedance: 20 kohms( RS232 compatible ).
  • Deviation: ± 30 kHz.
  • Deviation drive: positive.
  • Phase noise: > -85dBc/Hz @ 10kHz.
  • Harmonics: < -40dBc.
  • Spurious : < -60dBc.
  • Temperature case max: 90°C.
  • Linearity: 1%.
 
 

POWER REQUIREMENT
  • 28 V DC ( 19 V min to 37 V max ).
  • < 0.7 A (28 V DC) at 7 W.
  • Reverse polarity protection.




ENVIRONMENTAL CONDITIONS
  • Operating temperature range : -10 to +70° C.
  • Vibration: 10 Hz to 2000 Hz, 15 g-c.     Random 0.4 g²/Hz from 10 to 400 Hz.
  • Chock: ½ sinus 6 ms, 80 g.
  • Acceleration: 30 g.
  • Watertight: On request.
  • Humidity: 90%.
  • Altitude: 35 000 feet maximum.

 

DIMENSIONS
  • 160x 80 x 76 ( mm ) with heatsink.
  • Weight : < 1 kg.
  • RF output connector : SMA female.
  • Power and input connector : Type « D » 9 ways male.

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By Andrey Datso