Data Sheet

Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com
Issue 1, 01 August 2012
RX1L
Low current Narrow Band VHF receiver
The RX1L receiver modules have very low current
consumption (1mA) and it offers a reliable data
link in an industry-standard pin out and footprint.
This makes the RX1L ideally suited to those low
power applications where existing narrow band
modules are not suitable for prolonged battery
powered application. Two versions on the
151.300MHz and 173.225MHz frequencies are
available. RX1L is compatible with the
Radiometrix TX1 and BiM1T transmitters.
Figure 1: RX1L-173.225-5 receiver
Features
Conforms to EN 300 220-3 and EN 301 489-3
Data rates up to 5 kbps for standard module
Fully screened.
Very low current consumption
Long battery life
Applications
Solar powered remote installation
Data loggers
Industrial telemetry and telecommand
In-building environmental monitoring and control
High-end security and fire alarms
Vehicle data up/download
Technical Summary
Size: 59 x 38 x 7mm
Operating frequency: 151.300 or 173.225MHz
Supply range: 3.1V - 9V
Current consumption: 1mA
Data bit rate: 5kbps max. (standard module)
Receiver sensitivity: -120dBm (for 12 dB SINAD)
Evaluation platforms: NBEK + xx2M carrier
Radiometrix Ltd, RX1L Data Sheet
page 1
Figure 2: RX1L block diagram
Radiometrix Ltd, RX1L Data Sheet
page 2
59mm
A
1
33mm
38.5mm
2.7mm
3.1mm
1
C
B
53.3mm
B:
B:
B:
C:
C:
C:
C:
C:
C:
1 Gnd
2 RF in
3 Gnd
1, 2 No pins
3 AF out
4 Data out
5 + 3V out
6 0V
7- 10 No pins
Unit height
7mm
Figure 3: RX1L footprint (Top) view
Pin Description – RX1L
Pin A
1A
2A
1B
2B
3B
1C
2C
3C
4C
Name
+Vin
0V
Gnd
RF out
Gnd
No pin
No pin
AF out
DATA out
5C
6C
7C – 10C
+3V out/in
0V
No pins
Function
3.1 - 9V
Ground
RF ground
To the antenna
RF ground
200mVpk-pk audio. DC coupled, approx 1V bias
output of data slicer suitable for Biphase codes. 3V CMOS logic
levels
DC supply. 10mA maximum drain. Present if unit is powered.
Ground
-
NOTES:
1. ‘+3V out/in’ can be used to power the RX1L receiver from an external regulated 3V supply.
2. While pin equivalent to the RX2M450, the RX1L lacks carrier detect, RSSI, modem or multi
channel functions.
Radiometrix Ltd, RX1L Data Sheet
page 3
Condensed specifications
Frequency
Frequency stability
Channel spacing
Number of channels
151.300MHz or 171.225MHz (other frequencies on request)
+/- 2.5kHz
25kHz
1
voltage 3.1 – 9V (or 3V +/- 10% via 3V out pin)
Supply
Current
1mA receive
Operating temperature
Size
Spurious radiations
Interface
user
Power
RF
-10°C to +60οC (Storage -30°C to +70οC)
59mm x 38mm x 7 mm
Compliant with ETSI EN 300 220-3 and EN 301 489-3
Intended approval
ETSI Radio standard EN 300 220-3 and EMC standard EN 301
489-3
-120dBm for 12 dB SINAD
-65dB
-80dB
<-70dB (Tested per. ETSI EN 301 489-3)
Sensitivity
image / spurious
blocking
adjacent
channel
Outputs
Power on to valid audio
Power on to stable data out
(50:50 mark / space)
4pin 0.1" pitch molex
2pin 0.1" pitch molex
3pin 0.1" pitch molex
Audio, data
20ms
50ms
Notes:
1. The data slicer cannot be depended upon for data waveform frequencies below 250Hz
2. When RX is on and a transmitter keys up, again a 50ms period is required to stabilise data
output mark/space. i.e. allow at least 50ms of preamble
Radiometrix Ltd, RX1L Data Sheet
page 4
Radiometrix Ltd
Hartcran House
231 Kenton Lane
Harrow, Middlesex
HA3 8RP
ENGLAND
Tel: +44 (0) 20 8909 9595
Fax: +44 (0) 20 8909 2233
sales@radiometrix.com
www.radiometrix.com
Copyright notice
This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in
whole or in part must give clear acknowledgement to the copyright owner.
Limitation of liability
The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd
reserves the right to make changes or improvements in the design, specification or manufacture of its
subassembly products without notice. Radiometrix Ltd does not assume any liability arising from the
application or use of any product or circuit described herein, nor for any infringements of patents or other
rights of third parties which may result from the use of its products. This data sheet neither states nor
implies warranty of any kind, including fitness for any particular application. These radio devices may be
subject to radio interference and may not function as intended if interference is present. We do NOT
recommend their use for life critical applications.
The Intrastat commodity code for all our modules is: 8542 6000
R&TTE Directive
After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of
the R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance
to the essential requirements specified in Article 3 of the Directive, as appropriate to the particular
equipment.
Further details are available on The Office of Communications (Ofcom) web site:
http://www.ofcom.org.uk/
Information Requests
Ofcom
Riverside House
2a Southwark Bridge Road
London SE1 9HA
Tel: +44 (0)300 123 3333 or 020 7981 3040
Fax: +44 (0)20 7981 3333
information.requests@ofcom.org.uk
European Communications Office (ECO)
Peblingehus
Nansensgade 19
DK 1366 Copenhagen
Tel. +45 33896300
Fax +45 33896330
ero@ero.dk
www.ero.dk