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"Reception In Motion" - Superior Performance Free Live TV at Vehicle Speed of Up To 230 km/h (143 mph)

P/N DMT9.3   (Enhanced)

Price: $158.99

(srp $188.99 You Save $30)

Replaced with DMT9.4

Large View Remote Controller Pole Antenna Cables


The DMT9.3 is a state-of-the-art Dual Digital TV Tuner for car consisting of both ATSC-M/H Mobile and the regular stationary Over The Air (OTA) ATSC digital TV receivers. It allows you to receive off air HDTV broadcasts. So now you can enjoy your favorite TV program while on the move or stationed. With this unique combo car TV tuner, you can view the major TV channels (where ATSC-M/H service is available) by simply connecting the TV tuner to your current mobile video system. Using additional small (optional) device you can send your favorite programs to your Notebook, Tablet or iPhone.

The DMT9.3 is not a simple terrestrial receiver. It has a powerful Doppler Effect* (See explanation below) correcting feature to prevent lose of TV signal in moving cars. This problem is typical to many car TV tuners. Consequently these "regular" terrestrial tuners can be used only when the car is stopped. On the other hand: the DMT9.3 deliver excellent digital pictures while the car is moving. The correction mechanism is effective in car speed of up to 250 km/h (155 mph, about 135 Knots).

Don't Be Fooled! Not every 12V low priced tuner is a real "Car TV Tuner": Most of them have a regular ATSC tuner and will work only while the car is stopped. There will be no reception as the car starts moving because the important ATSC-M/H component is missing.

External Mobile Car TV Tuners - Comparison Table

or P/N
Power Acoustik DTV-1 No
Farenheit DTV-MHU No
Firebird Systems p/n DMT9.4

When you use the DMT9.3 Mobile CAR TV Tuner, you get the best reception the dual tuner can offer: The ATSC-M/H tuner component required for reception while the car is moving and a built-in regular ATSC component for maximum number of over the air TV stations while the car (or RV for that matter) is parked.

* What is Doppler Effect?

The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842 in Prague, is the change in frequency of a wave for an observer moving relative to the source of the wave. It is commonly heard when a vehicle sounding a siren or horn approaches, passes, and recedes from an observer. The received frequency is higher (compared to the emitted frequency) during the approach, it is identical at the instant of passing by, and it is lower during the recession.

Where To Use? - In Cars, RVs, Trucks, Motorbikes, Trains, Boats...

ATSC-M/H Service in USA Cities:

» See as List

Note: Reception is subject to availability of mobile TV service (ATSC-M/H), distance from the transmitters and terrain conditions.



  • Tunes and decodes all 18 approved Static ATSC (8-VSB) and Mobile ATSC-M/H (Advanced 8-VSB) DTV broadcast formats
  • Doppler Effect Correction upto 250 km/h (143mph, about 125 Knots [IAS])
  • Compatible with most areas in North America: Canada, Mexico, USA
  • Dual TV tuner consisting of an ATSC digital HD TV tuner over the air receiver and ATSC M/H tuner for "on the go" TV reception
  • Aspect ratio control in 4:3 and 16:9 mode
  • Stereo Analog audio output - RCA jacks
  • Simple user interface: On screeen guide set-up and On-Screen Menu
  • Advanced Electronic Program Guide
  • Support English, French, Spanish multi-languages
  • Very compact in size

Easy To Install


The DMT9.3 Mobile TV Digital Receiver is easy to install. For your convenience, we provide a link to basic "Do It Yourself" information. However, we strongly suggest you contact a trusted installer if you do not have "Do It Yourself" experience.

The DMT9 Mobile TV Digital Receiver has an external IR sensor receiver enabling installation of tuner in a non visible compartment Click picture to see wiring.



Specification Type ATSC Specifications ATSC MH Specifications
RF Specifications Input Frequency

54 ~ 806MHz (VHF/UHF)

RF Sensitivity -80dBm ~ -4dBm -92dBm ~ -10dBm
Impedance 50-ohm
Antenna Pole type (UHF)
Baseband Carrier of Demodulation ATSC ATSC M/H
Baseband Demodulation 8-VSB Advanced 8-VSB
Video Coding MPEG2, MP@ML, MP@HL MPEG4, Part10, AVC/SVC
Resolution 1920 x 1080i 416 x 240
Aspect Ratio 16:9, 4:3
Frame Rate 30 Frames/s
Bit Rate 29Mbps 2Mbps
Audio Mode

Mono & Stereo

Decoding MPEG2, AC-3 MPEG4, HE AAC v2
Sampling 32, 44.1, 48kHz / 16, 22.05, 24kHz (with SBR)
Bitrate 32-256 kbps (stereo) / 24-256 kbps (mono)
Memory Nand Flash 8M
Output Video 1.0Vp-p, 75-ohm NTSC
Audio 0.5Vrms, 10,000 ohm
Input IR Sensor +/-10' , +/-25
Download USB 2.0
Power Requirements Power DC 12V / 24V
Current 350mA, 12V DC / 175mA, 24V DC
Operating Environment Temperature -32 ~ +104

10 ~ 80%

Dimensions Tuner Module Width = 5.625"    Height = 0.9375"    Depth = 4.5625"
Pole Antenna Width = 1.375"    Height = 5.3125"    Depth = 1.375"    Cable Length = 10'
IR Receiver Width = 0.8125"    Height = 0.5"    Depth = 1.4375"    Cable Length = 10'
IR Remote Width = 2.25"    Height = 3.5"    Depth = 0.4375"
General Warranty One Year Limited Warranty   


Box Includes

  • P/N DMT9.3 Dual Digital TV Tuner for car consisting of both ATSC-M/H Mobile digital and the regular stationary Over The Air (OTA) ATSC TV receivers
  • IR Remote Controller
  • IR Receiver Sensor with attached 10" cable
  • Remote Controller CR2025 Lithium Battery
  • 10' Power Cable
  • Composite A/V Cable, 58".
  • Magnetic Base Pole Antenna with attached 10' cable.
  • User Manual

FOOTNOTES: For improvement purposes, the design and specifications of this unit are subject to change without prior notice.


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Copyright © 1995 - Firebird Systems Inc., All Rights Reserved

LMD: Tuesday, January 05 2016  
SED: Sunday, February 18 2018  V. A-00866


Synonymous Terms:
external ATSC tuner box, External HDTV tuner, HDTV tuner box, set top ATSC tuner box, digital tuner, digital tv tuner, high definition television, hdtv set top box, external tuner