Condensed specifications
Frequency
Any frequency in the 173MHz and 151MHz bands
In UK band, only 173.250, 173.275, 173.300 and 173.325 MHz are
used as standard
Other custom variants from 130 - 180MHz on any 2MHz band
Frequency stability
±1.5kHz
Channel spacing
Number of channels
25kHz (12.5kHz by special order)
16 channels controlled by parallel port
or 32 via serial RS232 interface
Operating temperature
Spurious radiations
-20 ºC to +70 ºC (Storage -30 ºC to +70 ºC)
Compliant with ETSI EN 300 220-3 and EN 301 489-3
Transmitter
Output power
+10dBm (10mW) ±1dB nominal (factory adjustable 1 - 25mW) and
+20dBm (100mW) ±1dB nominal (factory adjustable 25 - 100mW)
±3kHz (±1.5kHz @ 12.5kHz channel spacing)
30ms from TXE transition
FSK (F3D)
DC – 5kHz (3V CMOS compatible)
<-37dBm
Peak deviation
TX on switching time
Modulation type
TX modulation bandwidth
Adjacent channel TX power
TX spurious
<-40dBm (no RF output in Standby)
Supply
Voltage
3.1V – 15V (10 – 25mW)
4.1V – 15V (25 – 100mW);
34mA nominal transmit (@10mW)
90mA nominal transmit (@100mW)
<8µA standby (TXE high or floating)
data (CMOS/TTL compatible)
33 x 23 x 9mm
Current
Inputs
Size
Interface
User
RF
10 (8) pin 0.1" pitch dual row (5+5) header
2pin 0.1” pitch
Recommended PCB hole size
Receiver
1.2mm
Sensitivity
S/N ratio
-118dBm for 12dB SINAD
35dB (min), 40dB (typ) on AF output
AF bandwidth (-3dB)
4kHz
image
<-60db
Othr spurious
Blocking
Adjacent channel
LO re-radiation
Supply
<-70dbm
Better than 84dB
<-60dB
-70dBm
Voltage
3.1V – 15V
Current
20mA receive
<1µA standby (RXE low)
RSSI, audio, data (quasi DC data recovery circuit)
46 x 23 x 9 mm
Outputs
Size
Interface
User
10 pin 0.1" pitch dual row (5+5) header
RF
2pin 0.1” pitch
1.2mm
Recommended PCB hole size
Radiometrix Ltd
LMT1/LMR1 Data Sheet
page 7
RADIOMETRIX [ RADIOMETRIX LTD ]
