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Issue 1, 27April 2007
Radiometrix
Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
NRX1
Low cost VHF Narrow Band FM receiver
The NRX1 is a VHF radio data
receiver and it offers a low power,
reliable data link in a Radiometrix
SIL standard pin out and footprint.
It is an enhanced, low cost version of
the Radiometrix RX1, but in a slightly
larger dimension.
NRX1 is compatible with the TX1
series of transmitters, and the BiM1
transceiver.
Figure 1: NRX1-173.250-10
Features
Designed to comply with harmonised radio standard EN 300 220-3 and EMC standard
EN 301 489-3
Frequencies available as standard: 151.3000MHz, 169.4125MHz, 173.2250MHz and
173.2500MHz
Other custom frequencies from 120MHz to 180MHz available to order
Data rates up to 10 kbps with 25kHz channel spacing
Usable range to 10km+ with matching transmitter
Fully screened
NRX1 is a VHF equivalent of Radiometrix UHF NRX2 receiver and it is available for licence-
exempt operation in the UK 173MHz bands and European 169MHz band. It is also available
in the Australian frequency of 151.300MHz. NRX1 modules combine effective screening with
internal filtering to minimise spurious radiation and susceptibility thereby ensuring EMC
compliance. They are particularly suitable for one-to-one and multi-node wireless links where
longer ranges are required at low to moderate data rates. Applications include building
security, EPOS and inventory tracking, remote industrial process monitoring and data
networks. Because of their small size and low power consumption, these modules are ideal for
use in battery-powered portable applications such as handheld terminals.
Technical Summary
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Double conversion FM superhet
Supply range: 2.9V - 15V @ 10mA (internal 2.8V voltage regulator)
Data bit rate: 10kbps max.
Receiver sensitivity: -120dBm (for 12dB SINAD)
Local Oscillator (LO) re-radiation: <-60dBm
Adjacent Channel: -70dBm
Blocking: -86dB
Radiometrix Ltd.
NRX1 receiver data sheet
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RADIOMETRIX [ RADIOMETRIX LTD ]
