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, 02 November 2012
NTX0 / NRX0
27MHz HF Narrow Band FM TX & RX
The 10kHz channel NBFM NTX0 transmitter
and NRX0 receiver operate on the licence
exempt 27MHz SRD HF allocation. These
modules offer a low power, reliable data link
in a Radiometrix SIL standard pin out and foot
print. This makes the NTX0/NRX0 pair ideally
suited to those low power applications where
existing single frequency wideband UHF
modules have insufficient range, and in parts
of the world where other frequency bands are
not appropriate
Figure 1: NRX0-27.095-5
NTX0-27.095-5
Features
Conforms to ETSI EN 300 220-3 (radio) and EN 301 489-3 (EMC) and FCC 95.201-95.225
Standard frequency: 27.095MHz
Data rates up to 5kbps
Usable range over 1km @ 10mW
10/12.5kHz Channel spacing
Feature-rich interface (RSSI, analogue and digital baseband)
Longer range compared to Wide Band FM modules
Applications
Radio Control (R/C) Radio Service under FCC Part 95 subpart C
Radio model control
Telemetry and telecommand
Wireless door entry systems
Simple On/Off switching
In-building environmental monitoring and control
Security and fire alarms
Vehicle/machinery controls
Technical Summary
Transmitter – NTX0
3 stage crystal controlled VCXO
Supply 2.9V - 15V @ 20mA (10mW)
Data bit rate: 5kbps max.
Transmit power: +10dBm (10mW), 50mW (+17dBm) or100mW (+20dBm)
Size: 43 x 15 x 8mm
Receiver – NRX0
Double conversion FM superhet
Supply range: 2.9V - 15V @ 12mA
Data bit rate: 5kbps max.
Receiver sensitivity: -115dBm (for 12dB SINAD)
Adjacent Channel: -60dBm
Blocking: -85dB
Size: 47 x 17 x 8mm
Evaluation platforms:
NBEK + SIL carrier
Radiometrix Ltd.,
NTX0/NRX0 data sheet
Page 1
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