Condensed specifications
(All details are provisional)
Frequency
Frequency stability
Channel spacing
Number of channels
315 - 315.375MHz (US band)
433.875 - 434.650MHz (433 MHz EU band)
458.525 - 459.1MHz (458MHz UK band)
±1.5kHz
25kHz
128 channels selected via serial RS232 interface
First 16 are individually programmable
Next 112 are a sequential table
16 channels selected via
parallel interface
3.6 -15V
45mA transmit (at 10mW output)
100mA transmit (at 100mW output)
25mA receive (or modem ‘idle’)
-20 to +70 C (Storage -30 to +70 C)
50x 30 x 12 mm
Compliant with ETSI EN 300 220-3 and EN 301 489-3
11 pin 0.1" pitch molex
3 pin 0.1" pitch molex
5 pin 0.1" pitch socket in top of case
1.2mm (min.)
Supply
voltage
Current
Operating temperature
Size
Spurious radiations
Interface
User
RF
Reprogram
Recommended PCB hole size
Transmitter
Output power
TX on switching time
Modulation type
TX modulation bandwidth
Deviation
Adjacent channel TX power
TX spurii
Inputs
Receiver
Sensitivity
image / spurious
blocking
adjacent channel
Outputs
100mW (+20dBm); Adjustable
via serial command 0.1 - 100mW
<50 ms
FM, FSK (F1D, F3D)
DC – 3kHz
±3kHz
-37dBm
<-40dBm
Data (CMOS/TTL compatible)
-118dBm for 12dB SINAD
-60dB
-84dB
-60dB
RSSI, Audio, Data
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
Radiometrix Ltd
USX2 Data Sheet (preliminary)
page 6
RADIOMETRIX [ RADIOMETRIX LTD ]
