FMT- 401, FMT- 402, FMT- 404
High Powered, Handheld 27MHz Remote Control Digital Transmitter with LED

Features

• LED status indicator & low battery alert
• Works in the 27MHz band
• Maximum reliability provided by Surface-Mount technology
• High security by 12-way code switch, enabling 4096 codes
• Long operating distance
• Durable plastic case
• 2-Channel and 4-Channel versions are also available

Application

• A remote control switching device for various uses eg. garage doors, lights, gates, and automatic telephone dialers
• A personal security alarm activator for home safety or cash carrying businesses eg. banks, shops, service stations, etc.
• A calling device for the elderly or handicapped

 Click image to enlarge
Download Datasheet

Description
Technical Data
Block Diagram
Transmitter Selection Flow Chart

 

Description

The LED indicator on the FMT-401 indicates the low battery (<6.5V) status by flashing at 1Hz.  To activate the transmitter, simply press the button at the front.  LED will be “on” when the transmitter is activated.

Working in the 27MHz band, the FMT-401 achieves the highest possible standard of performance by employing a crystal-controlled, frequency modulated radio signal.  The microcontroller with the latest surface-mount technology provides maximum reliability.

High security against false operation is achieved by a 12-way code switch (part of the digital encoding system) which is used in place of the usual 8 or 10 way systems from other manufactures.  This enables the user to select any one of the 4096 codes available.  The code can be easily changed at any time.

Operating Distance

Range (m)

Receiver Antenna

Receiver Type

70

300mm wire

FMR-… series

Upto 300

ANT27M

FMR-… series

(Range tests were done in an open area test site with line-of-sight operation and no interference. The receiver antenna wire was fixed vertically, away from any metal objects.)

Compatibility

All Elsema type FMR-… series:
FMR-201
FMR-212
FMR-212T
FMR-202
FMR-204/16
FMR204-12
FMR204-24
FMR-240
FMR-232R

Other Products in the Range

FM high power transmitter

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FMT-401

1-channel

handheld high power transmitter


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FMT-402

2-channel

4channel high power transmitter


 Click to enlarge
FMT-404

4-channel

27MHz transmitter witout label


 Click to enlarge
FMT-401NL

1-channel

FM Transmitter NL


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FMT-402NL

2-channel

transmitter without label

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FMT-404
NL
4-channel

transmitter with external switch

 


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FMT-401WNL

1-channel

27MHz transmitter with 2 external switches



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FMT-402WNL

2-channel

transmitter with external switch connections

 

 Click to enlarge
FMT-404WNL

4-channel

FMT-40..WNL Front

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Front view of FMT-40..WNL

No label (NL) – click here for instructions

Accessories (Available Seperately)

leater pouch
LP
Stylish Leather Pouch
alkaline battery
6LR61
9V Alkaline Battery
(For better performance)

Pictures are for illustration purposes only; final product may differ

Technical Data

Power Source

9 Volt Alkaline Battery

Battery Life

1 year shelf life

Supply Voltage

8-10 Volts DC (for constant RF-output)

Current Consumption

115mA (typical) at 8VDC supply during transmission

Operating Frequency

27.145MHz (Other frequencies available: 27.045, 27.195 & 27.455MHz. NB. 27.455MHz is available for Europe Only)

Carrier Freq. Tolerance

Crystal controlled 30 parts per million (0-50 ° C)

Radiated Field Strength

73dBuV/m at 3m (±3dB) or 6uW

Antenna

Built-in 50mm proprietary DILEC rod

Type of Emission

Narrow-bandwidth Frequency Modulation (5K00F1D)

Bits per second

926bps

Necessary Bandwidth

±5.0kHz

Digital Coding System

Onboard 12-way coding switch (4096 codes) (FMT-404/FMT-402: 10-way)

Dimension

96 x 55 x 20 mm

Weight

70g (excluding battery)

Useable Operating Range

300m (varies upon receiver antenna & location)

Compatible Receivers

All Elsema type FMR series

Block Diagram

Using FMT-402 and FMT-404

To Use FMT-402 with a 2 channel receiver, and FMT-404 with a 4 channel receiver, just match the 10 way dip switch on the transmitter to the receiver.

Using 2 Different Receivers with FMT-402

FMT-402 can also be used with 2 different single channel receivers e.g. FMR-212.

Make sure the 10 way dip switch on the transmitter board matches the first 10 dip switches on the receiver. Set the receivers dip switch 11 and 12 as described below.

When Button A is pressed, dip Switch 11 is transmitted as “ON” (Dip switch 11 on the Receiver is up)
When Button B is pressed, dip Switch 11 is transmitted as “OFF” (Dip switch 11 on the Receiver is down)

When wire link is connected (Factory default), dip switch 12 is “ON” (Dip switch 12 on the Receiver is up)
When wire link is disconnected (cut), dip switch 12 is “OFF” (Dip switch 12 on the Receiver is down). 
(see picture below for the location of the wire link)


FM coding

 

Using 4 Different Receivers with FMT-404
FMT-404 can also be used with 4 different single channel receivers e.g. FMR-212.  This can be setup as follows:

  1. Make sure the 10 way dip switch on the transmitter board matches the first 10 dip switches of the receiver.
  2. The receivers dip switch 11 and 12 configuration is illustrated below.   

Channel selection

Labels

Customised front labels can be made by:

Entech Electronics Pty Ltd

37 Belford Avenue, Devon Park,
South Australia 5008, Australia

Phone: (61) 8 8245 6789
Fax: (61) 8 8245 6788
Email: sales@ecg.entechgroup.net   

G&M Screen Printing
Phone: (61) 2 9676 4560
Fax: (61) 2 9676 4561

Please note:
• Label size should be 0.5mm less than the above recess ie. 89.50 x 49.50 mm
• Rounding in the corners is 4.3mm (11/64”) diameter
• On the 4-channel transmitter, channel 1 is at the extreme left followed by channel-2, etc.
• Recommended label material: Polyester Autotex F200