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FMR15101
1 Channel 151MHz Receiver
Features
• Wide supply connection – 11.0 to 28.0 Volts AC/DC
• Highly sensitive receiver input stage.
• Relay Outputs 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
FMR15101 can be used in noisy environment and is least affected by electrical interference. This makes FMR15101an ideal choice for use in heavy industrial environment.
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.
This DIP switch on the right side of the 12 way dip switch denotes the channel. See table below.
Generally to use a 1 channel Tx to 1 channel Rx match all the 15 dip switch (12way + 3way just on the right side of the 12 way).
To use a multi channel Tx to control a number of (up to 8) Rx, refer to the table below for the switch setting.
FMR15101
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 |
Different Modes for the Output
Modes are user selectable from the 4-way dip switch, shown below.
Products in the Range
Technical Data
Supply Voltage |
11.0 - 28.0 VDC
10.0 - 28.0 VAC
Can use Elsema AC power pack (PP12 / PP24)
Supply lines should be less than 3m long to comply with radio frequency authorities |
Current Consumption |
10mA Standby at 12VDC
45mA when relay “ON” at 12VDC |
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 5 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 |
95 x 70 x 20mm |
Mounting Hole Size |
3.97mm or 5/32” |
Weight |
83g |
| 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 |
Block Diagram

FMR15101 12/24 VAC/DC Application

FMR15101 110/240 VAC Application

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