NTX2_14 Datasheet, PDF (1/11 Pages) Radiometrix Ltd – UHF Narrow Band FM TX & RX

Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Tel: [phone], Fax: [phone], www.radiometrix.com
NTX2 / NRX2
UHF Narrow Band FM TX & RX
Issue 1, 30 July 2012
The NTX2 transmitter and NRX2 receiver
offer a low power, reliable data link in a
Radiometrix SIL standard pin out and
foot print. This makes the NTX2/NRX2
pair ideally suited to those low power
applications where existing single
frequency wideband UHF modules have
insufficient range. NTX2 HP (25mW)
variant can be used in applications
where greater radiated power is desired
(for example when space limitations
dictate the use of small and inefficient
antenna, or in countries where the extra
power is permitted)
Figure 1: NRX2-434.650-10
Features
• 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
NTX2-434.650-10
Available for licence-exempt operation in the 433MHz (EU) and 458MHz (UK) bands, the NTX2 & NRX2
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 TX2 transmitter and RX2 receiver need to be extended. They are
particularly suitable for point-to-point and point-to-multipoint wireless links where longer ranges are required
at low data rates.
Technical Summary
Transmitter – NTX2
3 stage crystal controlled VCXO
Supply 2.9V - 15V @ 18mA (internal 2.8V voltage regulator)
Data bit rate: 10kbps max.
Transmit power: +10dBm (10mW) or +14dBm (25mW HP variant)
Receiver – NRX2
Double conversion FM superhet
SAW band pass filter, image rejection: 50dB
Intermediate Frequencies (IF): 21.4MHz, 455kHz
Supply range: 2.9V - 15V @ 14mA (internal 2.8V voltage regulator)
Data bit rate: 10kbps max.
Receiver sensitivity: -118dBm (for 12dB SINAD) / -112dBm (for 1ppm BER)
Local Oscillator (LO) re-radiation: <-60dBm
Adjacent Channel: -70dBm
Blocking: -84dB
Evaluation platforms: NBEK + SIL carrier
Radiometrix Ltd.,
NTX2/NRX2 data sheet
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