Military Radio HT-78A-Walkie Talkie

General
 
 
  Frequency coverage 30.000~88.000MHz (Full range)
 
  Channel spacing 25KHz/12.5KHz (Option)
 
  Number of channels 2321/4642 (12.5KHz)
 
  Number of preset channels 10
 
  Power supply requirements 7.4V DC (supplied battery pack)
 
  Current drain (approx.) Standby: Less than 60mA (Power save mode); Less than 140mA (Normal mode); Rx (middle volume); Less than 250mA; Tx (More than 1 Watt): Less than 800mA
 
  Built-in tone signaling 38 CTCSS, 83 DCS or 150Hz tone
 
  Built in modem 1200/2400bps MSK modem with FEC
 
  Frequency error +/- 3ppm
 
  PC Interface RS232C/E
 
  Antenna port Built-in antenna matching network. An extra 50ohm output provided (For booster or testing use)
 
  Protection against Over heat/current of PA
 
 Receiver
 
 
  Receive system Double-conversion super heterodyne system
 
  Intermediated frequencies 1st 130.05MHz, 2nd 450KHz
 
  Sensitivity (12dB SINAD) 0.4uV (typical)
 
  Squelch sensitivity 0.4uV (at threshold)
 
  IF Rejection Better than 65dB
 
  Image Rejection Better than 70dB
 
  Adjacent channel selectivity 60dB (typical)
 
  Inter-modulation 60dB (typical)
 
  Audio output power 250mW typical at 5% distortion with an 16ohm load
 
 Mechanical and Environmental
 
 
  Dimensions (with BP-18L) 173 x 63 x 42.5 mm (HxWxD)
 
  Weight (approx.) 480g (with BP-18A)
 
  Usable temperature range -30 degrees to +65 degrees
 
  Environmental Per MIL-STD-810 (High Temp, Low Temp, Immersion, humidity, salt fog, vibration & shock)
 
  Immersible 1 meter depth of water for 2 hours
 
  EMI/EMC Meets MIL-STD-461C
 
 Transmitter
 
 
  RF output power 0.5-1.5 Watt. With APC
 
  Modulation system Variable reactance frequency modulation
 
  Max. permissible deviation +/-5KHz ; +/-2.5KHz (12.5KHz)
 
  Spurious emissions 63dBc
 
  Harmonic Radiations Better than 40 dBc (2nd); Better than 55 dBc (4th and above)
 
  Adjacent channel power 65dBc
 
  Audio distortion 5% typical 
 

 

HT-78A conforms to rigid military standards: Mil-Std-810E tests for reliability under harsh environments and Mil-Std-461C tests for EMI/EMC. It is also fully compatible with old generation radios such as AN/PRC-77, AN/VRC-12, etc.

Communication 
Overview Features Specs Accessories Downloads FAQ
Military Band Tranceiver HT-78A
HT-78A is VHF handheld radio developed for the modern tactical environments. It provides reliable voice and data communication over the entire military band of 30-88MHz with 25KHz step. Some of the HT-78A powerful features include: the capability to transmit both data and voice, securing communication with scrambler, selectable tone signaling, versatile scanning options, dynamic antenna matching circuit, auto battery detection, etc.