Radiometrix Ltd
TR2M Data Sheet
page 9
Condensed specifications
Frequency
458.5-459.1MHz or 433-434MHz (any 5MHz band from 420-480MHz)
Frequency stability
+/- 1.5kHz
Channel spacing
25kHz (12.5kHz by special order)
Number of channels
128 channels controlled via RS232 interface (8 parallel selected)
Supply
voltage
4.5-16V
Current
110mA nominal transmit
27mA receive
Operating temperature
-10 to +60 οC (Storage -30 to +70 οC)
Size
59 x 38 x 10 mm
Spurious radiations
Compliant with ETSI EN 300 220-3 and EN 301 489-3
Interface
user
13pin 0.1" pitch molex
Power
2pin 0.1" pitch molex
RF
3pin 0.1" pitch molex
Recommended PCB hole size
1.2mm (min.)
Intended approval
ETSI Radio standard EN 300 220-3 and EMC standard EN 301 489-3
Transmitter
Output power
+20dBm (100mW) ±1dB (factory adjustable 1-100mW)
TX on switching time
50 ms
Modulation type
FM, FSK (F1D, F3D)
TX modulation bandwidth
DC – 3kHz
Adjacent channel TX power
-37dBm
Inputs
analogue, data (CMOS/TTL compatible)
Receiver
Sensitivity
-112dBm for 1 part per 1000 BER
-118dBm for 12 dB SINAD
image / spurious
-70dB
blocking
-85dB
adjacent channel
<-60dB (Tested per. ETSI EN 301 489-3
Outputs
RSSI, carrier detect, audio, data
Power on to valid audio (no noise mute)
28ms
Power on to valid audio (with noise mute)
45ms
Power on to stable data out (50:50 mark / space)
50ms (with or without mute)
Notes: 1. The data slicer cannot be depended upon for data waveform frequencies below 250Hz
2. When RX is on and a transmitter keys up, again a 50ms period is required to stabilise data output
mark/space. i.e. allow at least 50ms of preamble
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