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FMR15101240
1Channel 151MHz, 240V AC Receiver with 240V AC/DC 8A Relay Output
Features
• Highly sensitive receiver input stage.
• Relay Outputs (with LED)can be operated simultaneously.
• Crystal controlled for high stability and performance.
• Uses micro-controller technology that can be re-programmed to suit unique applications.
• Momentary, flip-flop and latching output modes is user-selectable.
Application
Pump Control
Long distance panic button
On/Off applications in agricultural devices
Security alarm
Basic Telemetry eg. Water level indication
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Description
FMR15101240 can be used in noisy environment and is least affected by electrical interference. This makes FMR15101240 an ideal choice for use in heavy industrial environment.
Different Modes for the Output
This 3-Way dip switch is situated beside the microcontroller. (refer to the picture below)

Modes are user selectable from the 3-way dip switch, shown below.
Coding
The 12 way dip switch on the receiver sets the 12 bit unique code for the system. This has to be matched to that on the transmitter.
Apart from the 12 way dip switch there will be an additional dip switch depending upon the receiver type:
- Single channel receiver will have a 3 way dip switch.
To use a 2 channel Tx to control 2 x single channel receivers, first match the 14 dip switch positions and on the receiver, 15th dip switch OFF is Ch1 and 15th dip switch ON is Ch2.
This DIP switch on the right side of the 12 way dip switch denotes the channel. See table below.
FMR15101240
3-Way DIP Switch & Single Relay Output
SW13 |
SW14 |
SW15 |
Channel |
OFF |
OFF |
OFF |
1 |
OFF |
OFF |
ON |
2 |
OFF |
ON |
OFF |
3 |
OFF |
ON |
ON |
4 |
ON |
OFF |
OFF |
5 |
ON |
OFF |
ON |
6 |
ON |
ON |
OFF |
7 |
ON |
ON |
ON |
8 |
Products in the Range
Technical Data
Supply Voltage |
240V AC Mains |
Current Consumption |
18mA 240V AC |
Receiver Type |
Single Conversion Superheterodyne |
Receiving Frequency |
151.6MHz (8 selectable frequencies within 150.900 - 151.600MHz with 100KHz spacing avaliable). |
Oscillation System |
VCO with 10ppm crystal controlled reference oscillator |
Operating Temperature Range |
-5 to 50°C |
IF Frequency |
10.7MHz |
Selectivity |
Better than -6dB at ±25kHz |
Type of Demodulation |
Narrow-Bandwidth Frequency Modulation (FM) |
Occupied Bandwidth |
25kHz at -20dB |
| Output |
Relay output, rated at 8 Amps/240 Volts |
Connection |
Supply, Antenna & Outputs - Screw type terminal block |
Antenna |
50Ω, 151MHz Antenna, Elsema ANT151M for maximum performance
A piece of approximately 1metre wire can be used for short range applications |
Dimensions |
130 x 70 x 37mm |
Mounting Hole Size |
3.97mm or 5/32” |
Weight |
130g |
| Useable Transmitters |
FMT15101E, FMT15102E, FMT15104E, FMT15108E (with correct setting on the dip switch). See Transmitter datasheet for details. |
Useable Operating Range |
Up to 5000 metres, depending on installation and type of antenna used. Recommended Antenna is Elsema ANT151M |
Application Diagram
FMR15101240

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