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, 30 July 2012
UHF Narrow Band FM Transceiver
The NTR2 transceiver offers a low power,
reliable data link in a Radiometrix SIL
standard pin out and footprint. This
makes the NTR2 ideally suited to those
low power applications where existing
single frequency wideband UHF modules
have insufficient range.
Figure 1: NTR2-434.650-10
Features
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Conforms to ETSI EN 300 220-3 (radio) and EN 301 489-3 (EMC)
Standard frequencies: 434.075MHz, 434.650MHz and 458.700MHz
Custom frequencies available in 433MHz (EU) and 458MHz (UK) band
Data rates up to 10kbps
Usable range over 500m
25kHz Channel spacing
Longer range compared to Wide Band FM modules
Available for licence-exempt operation in the 433MHz (EU) and 458MHz (UK) bands, the NTR2 modules
combine effective screening with internal filtering to minimise spurious radiation and susceptibility thereby
ensuring EMC compliance. They can be used in existing low data rate (<10kbps) applications where the
operating range of the system using wide band transceivers need to be extended. Because of their small
size and low power consumption, NTR2 is ideal for use in battery-powered portable applications.
Applications
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EPOS equipment, barcode scanners
Data loggers
Industrial telemetry and telecommand
In-building environmental monitoring and control
High-end security and fire alarms
DGPS systems
Vehicle data up/download
Technical Summary
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3 stage crystal controlled VCXO
Data bit rate: 10kbps max.
Transmit power: +10dBm (10mW)
Double conversion FM superhet
SAW band pass filter, image rejection: 50dB
RX sensitivity: -118dBm (for 12dB SINAD)
RX Adjacent Channel: -70dBm
Supply 2.9V - 15V @ 18mA (internal 2.8V voltage regulator)
Size: 57 x 24 x 8mm
Evaluation platforms: NBEK + NTR carrier
Radiometrix Ltd.,
NTR2 transceiver data sheet
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