TECHNICAL SPECIFICATION
General
Operating Voltage
Operating Current
ACKMODE ON (100mW)
Transmitting
5VDC or 3.3VDC
Average 62mA (Data streaming)
Average 27mA (Data streaming)
Receiving
ACKMODE ON (10mW)
Transmitting
Average 32mA (Data streaming)
Average 18mA (Data streaming)
Receiving
ACKMODE OFF (100mW)
Transmitting
Average 86mA (Data streaming)
Average 12mA (Data streaming)
Receiving
ACKMODE OFF (10mW)
Transmitting
Average 42mA (Data streaming)
Average 12mA (Data streaming)
7mA (Waiting for Connection)
1.2mA or 400µA 3
Receiving
Auto-Standby
Power-down
Standard Operating frequency
151.300MHz (100mW)
173.225MHz or 173.250MHz (10mW)
Other custom frequencies between 120MHz-180MHz
25kHz
Channel spacing
Operating Temperature
Configuring options
-10ºC to +60ºC
Built-in command line configurator
Interface
Serial Interface
Serial Protocol
Inverted RS232 at 5V or 3.3V CMOS level
8 data/1 stop/no parity
Serial Signals
RXD, TXD, CTS, WAKE
Power down Control
Serial Handshaking
DTE Interface Speed
Via WAKE/DTR signal
Selectable as CTS signal or none
600/1200/2400/4800/9600/19200/38400/57600/115200 bps
Air Interface Speed
10kbps
Overall throughput – Acknowledged
3.7kbps (max)
1.2kbps (slots)
0.6kbps (slotsw)
– Unacknowledged4 5.3kbps (max)
1.2kbps (slots)
0.6kbps (slotsw)
Receiver
Sensitivity
-115dBm for 1ppm BER
LO leakage (conducted)
-70dBm
Transmitter
Output Power
+20dBm (100mW) ±1dB (5V variant only)
+10dBm (10mW)
Spurious Emissions
AS/NZS 4268:2003 limits (100mW variant)
EN 300 220-3 limits (10mW variant)
Note:
1.
RPM1 uses BiM1 (10kbps VHF Narrow Band FM) transceiver for its RF interface. Please refer
to BiM1 data sheet for further details on the RF specification.
2.
3.
BiM1 (100mW/10mW) consumes 80mA/30mA on transmit and 8mA on receive
RPM1 Issue 1 maintains compatibility with the SHDN OFF feature in SPM2
RPM1 Issue 2 will shut the 1.280MHz oscillator down when WAKE pin is pulled High to
reduce power down current. SHDN should be left as ON and WAKE pin should be pulled Low
to Enable RPM1.
4.
RPM1T transmitter and RPM1R receiver can only be used with ACKMODE set to OFF
Radiometrix Ltd.
VHF Narrow Band FM Radio Packet Modem
page 6
RADIOMETRIX [ RADIOMETRIX LTD ]
