SMX1-173-5 Radiometrix, SMX1-173-5 Datasheet - Page 6

• Manufacturer Part Number: SMX1-173-5
• Description: Small Multi-channel VHF Transceiver
• Manufacturer: Radiometrix

Condensed specifications
Frequency
Supply
Operating temperature
Size
Spurious radiations
Interface
Recommended PCB hole size
Intended approval
Transmitter
Output power
TX on switching time
Modulation type
TX modulation bandwidth
Deviation
Adjacent channel TX power
Inputs
Receiver
Sensitivity
Outputs
Power on to valid audio
Power on to stable data out
Notes: 1. The data slicer cannot be depended upon for data waveform frequencies below 250Hz
Radiometrix Ltd
image / spurious
blocking
adjacent channel
2. When RX is on and a transmitter keys up, again a 50ms period is required to stabilise data
Channel spacing
Number of channels
Frequency stability
output mark/space. i.e. allow at least 50ms of preamble
voltage
Current
Power
RF
user
1.2mm (min.)
Any 2MHz band from 130-180MHz
173.200 - 173.325 MHz UK std.
150.825 – 152.450MHz Australian std
25kHz (12.5kHz by special order)
128 channels selected via serial RS232 interface
In UK band only 173.225, 173.250, 173.275, 173.300, 173.325 MHz are
used as standard;
151MHz band (Australian) unit has 66 channels
4.2V-16V
40mA (10mW); 65mA (50mW) transmit
20mA receive (or modem ‘idle’)
-10 to +60 C (Storage -30 to +70 C)
53 x 32 x 12 mm
Compliant with ETSI EN 300 220-3 and EN 300 686
8 pin 0.1" pitch molex
4 pin 0.1" pitch molex
3 pin 0.1" pitch molex
ETSI Radio standard EN 300 220-3 and EMC standard EN 301 489-3
UK standard +10dBm(10mW)
<50 ms
FM, FSK (F1D, F3D)
DC – 3kHz
-37dBm
data (CMOS/TTL compatible)
-120dBm for 12dB SINAD
-112dBm for 1 part per 1000 BER
-65dB
-85dB
-65dB
RSSI, Audio, Data
28ms
50ms (for 50:50 mark / space)
2kHz
2.6kHz to 3kHz
8 channels selected via 3 frequency select pins
SMX1 Data Sheet
1dB (factory adjustable: 1 - 50mW)
page 6