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FM Transmitters
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MRI 15 PORTABLE FM TRANSMITTER  

mri_15
The new MRI 15 Portable FM Transmitter is specially designed for the following applications:
  • Civil defence organisations
  • Armed forces and security forces
  • Electoral campaigns
  • Religious orders
  • Small communities
The MRI 15 is made of a 4-audio-channel mixer and an externally synthesized FM transmitter that can provide a 15W RF output signal.
This unit has been designed to be used as emergency radio station, really easy to use and to install. It can be also used as small radio station in rural areas, or eve as exciter of a more powerful transmitter.
 
On its LCD Display, transmission parameters like forward power, reflected power and FM-band modulation level (in 10 KHz steps) can be visualized.
The MRI 15 works with internal or external 12VDC power supply, or with AC power supply between 110 ~220VAC. Due to its excellent performance and versatility the MRI 15 is  an outside radio broadcasting unit unique in the world.

Technical Features

 

Operating Frequency

87,5 ~ 108MHz

Modulation

FM CLASS F3

VCO Adjustment

25MHz maximum

Frequency Stability

± 2,5ppm TCXO

Local Oscillator Step

10KHz

Output Power

0 ~ 15W adj.

Spurious

< - 80dB

Harmonics

< - 65dB

Distortion

< 0.2% a 1KHz without limiting

Baseband Line And Micro Input

0.5dB from 30Hz to 15KHz

Baseband Mpx Input

0.3dB from 30 Hz to 60KHz

Unweighted S/N Ratio

70dBrms with 50 µS

Asynchronous Am S/N Ratio

65dB Ref. 100% AM 400Hz

Synchronous Am S/N Ratio

60dB in FM at 75KHz

Pre-Emphasis

50 or 75µs in line/micro input

Rf Connectors

N 50Ω

Line Input Impedance

5KΩ

Micro Input Impedance

600Ω

Mpx Input Impedance

1KΩ

Parameter Visualization

LCD Display

Frequency Tuning

2 keys with password

Cooling

Convection

Operating Temperature Range

0 ~ +45ºC

Maximum Humidity

90%

Ac Power Supply

100 ~ 220V 47/63Hz

External Dc Power Supply

12~15 V negative-to-ground

Internal Dc Power Supply

12V 6A battery

Autonomy

Around 1.5 hours on marked output power

Dimensions

360 X 230 X 230mm

Weight

6.5Kg (14.3lbs)

DCS Home Studio Equipment RF Transmission About Us
The new MRI 15 Portable FM
OMB MRI Portable FM Transmitter
Transmitter is specially designed for the following applications:

 - Civil defence organisations

 - Armed forces and security forces

 - Electoral campaigns

 - Religious orders

 - Small communities?

 
Due to its excellent performance and versatility the MRI 15 is an outside radio broadcasting unit unique in the world.
More info...