Nokia TMR420

Nokia TMR420

The Nokia TETRA terminals fulfill the following specifications for TETRA radio equipment in the temperature range -20 to +55 Celsius

  • EN 300 392 V+D air interface
  • EN 300 394 V+D conformance testing
  • EN 300395 TETRA speech codec

Power Class

  • EN 300 392-2 compliant power class 2 (10 W)

Size

  • Weight: 1.6 kg with control unit
  • Dimensions: 44 x 145 x 254 mm – radio unit                    59 x 185 x 30 mm – control unit

Keypad

  • Alphanumeric keypad
  • 3 function keys
  • 10 shortcut functions (menu + 0…9)
  • Emergency key
  • Rotary switches for group selection and volume control
  • Arrow keys for scrolling the menu/phonebooks
  • Keypad lock

Display

  • Dynamic high-precision graphics display, 5 lines x 15 characters or 3 lines x 11 characters
  • 6 icons
  • Field strength indicator bar

Light Indicators

  • 4 colored lights for different operating situations

Voice Communication

  • Group communication
  • Express call inside TETRA system
  • Individual duplex call inside TETRA system
  • Individual duplex call to/from PABX and PSTN
  • DMO
  • Emergency call
  • Late entry

Data Communication and Messaging

  • Status messaging; max 50 pre-programmed status messages
  • Situation indicators
  • Call back request
  • Text messaging
  • SDS API data interface
  • IP packet data

Other Features

  • Phonebooks: 100 TETRA subscriber numbers, 100 other numbers
  • Group lists: 100 pre-programmed groups, 50 DGNA groups (assigned by dispatcher over the TETRA network)
  • Stack for 10 received status messages, 10 call requests and 40 text messages
  • Scanning with user-definable priorities
  • Speech item queuing
  • User and group priorities
  • Talking party identification
  • Calling line identification
  • Authentication
  • Air interface encryption support

Frequency Bands

TX RX DMO
380 – 385 MHz 385 – 390 MHz 410 – 420 MHz 390 – 395 MHz 395 – 400 MHz 420 – 430 MHz 380 – 385 MHz 385 – 390 MHz -

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