Houston 2-Way Radio Group Inc
CHINESE PROFESSIONAL TWO WAY RADIO,WALKIE TALKIE MANUFACTURE
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379325680:379-325-680

For mobile communications with maximum performance and operating convenience in an ultra-compact package, look to new TK-768/868 Series synthesized dash-mount radios. Synthesized channel frequency generation provides up to 32 semi-duplex channels for any application, from the simplest to the most sophisticated. Wideband design provides coverage across the most common VHF & UHF bands. VHF: 148 ~ 174 MHz and 136 ~ 156 MHz. UHF: 450 MHz ~ 476 MHz, 470 MHz ~ 496 MHz, 488 MHz ~ 512 MHz, and 400 MHz ~ 425 MHz.

  • Advanced design RF power modules provide an economic choice between low and high power models with power output of 45W or 25W for TK-768 Series and 35W or 25W for TK-868 Series.
  • Priority scan allows user to monitor multiple channels for calls and if need be, prioritize a main channel. Other features such as programmable reverts, delete/add, and off-hook scan allow the radio to be customized for both simple and sophisticated users.
  • Emergency function is available to secretly notify the dispatcher that an emergency has arisen.
  • The user-selectable tone function allows operators to temporarily re-programme the radio's signal tone; this permits communication with talk groups outside of their own.
  • PC programmability means even complex radio configurations are easily and accurately implemented and stored. For enhanced flexibility in the field, technicians can programme the radio using the "self-program" mode or wired clone function.
  • A large, easy-to-read LCD display renders clear legibility under any lighting conditions. Channel and operational status information are shown using large, easy-to-understand indicators.
  • "Installation-ready" ultra-compact and lightweight design.
    Today's vehicles are limited in space and mounting surface which makes the 140mm (5.5-inch) width and the mere 1kg (2.2 lbs) weight an installer's dream. Each mobile package includes an adjustable mounting bracket and a durable compact microphone that doesn't require a ground connection, making installation fast and easy. Also, the internal speaker's position can be changed 180 degrees by inverting the front panel.
  • Die-cast chassis/heatsink and rugged design that meets tough MIL-STD 810 C, D & E specifications for shock, vibration and dust means that you will have reliable performance and sustained return on your investment for many years. The rugged, easy-to-use microphone has been newly designed with a telephone-style connector and heavy-duty cable to protect against failure.
  • The high-performance transceiver design means the TK-768(H)/868(H) are equally suited to urban, suburban and rural environments. Built-in QT squelch segregates talk groups so users only hear traffic from other co-channel users in their own group. This reduces user misunderstandings and confusion.
  • DTMF encode/decode signaling is also built-in creating a simple, inexpensive "selective call" paging for fleets of any size (10 digit codes, millions of combinations). It can be used to privately call individual mobiles within a fleet and also provide an alert output to trigger a vehicle horn, headlights, or strobe bar. Also, it is capable of displaying up to 5 characters of receiving signal status on the LCD.
  • Voice encryption-ready: whether protecting sensitive information or eliminating dispatch "pirates", electronic eavesdropping can be made virtually impossible by using many of the encryption or voice scrambler devices available. The TK-768/868 series mobiles have connection provisions specifically made to accommodate any of these devices.
  • Programmable time-out timer cuts off transmissions beyond an adjustable limit preventing accidental keyups and overlong communications. Busy channel lock-out prevents users from transmitting on channels already in use.
  • Programmable/assignable keys provide one-touch control over radio functions such as the home channel function. All are customizable by your technician. A high-quality speaker with 4-watt amplifier delivers loud, clear audio output. The rotatable front panel is design-engineered to the operator's ergonomic requirements, providing the optimum in safety and operating ease. Volume and channel controls are up/down switches instead of traditional knobs, and the large LCD display is easily viewed from any angle.
GENERAL
Frequency coverage
Rx 136 - 174 MHz*
Tx 144 - 148 MHz
*Guaranteed 144 - 148 MHz only
Mode
FM
Number of memory ch.
207 (incl., 6 scan edges, 1 call Ch.)
Antenna connector
SO-239 (50 ohm)
Power supply requirement
13.8 V DC ±15% (negative ground)
Frequency stability
±10 ppm -10°C to +60°C
Current drain
: Tx at 75 W
Rx Standby 0.3 A typical
      Max. audio 15 A 1.0 A
Usable temp. range
-10°C to +60°C; +14°F to +140°F
Dimensions
150(W) × 50(H) × 150(D) mm;
Weight
1.09 kg; 2.2 lb
RECEIVER
Receive system
Double-conversion superheterodyne system
Intermediate frequencies
1st 21.7 MHz
2nd 450 kHz
Receive Sensitivity (at 12dB SINAD)
Less than 0.15 µV
Selectivity (wide/narrow)
More than 6/3 kHz at -6dB
Less than 14/9 kHz at -60dB
Spurious and image
rejection ratio
75 dB (typ.)
Audio output power (at 13.8 V DC) More than 2 W at 10% distortion with an 8 ohm
Ext SP connector 3-connector 3.5 (d) mm (1/8")
TRANSMITTER
Output power
(continuously adjustable)
75, 25, 10, 5 W selectable
Modulation system Variable reactance modulation
Spurious emission Less than -60 dB
Microphone connector 8-pin modular (600 ohm)
Specifications may be changed without notice
china two way radio
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