Radiometrix Ltd.

UHF FM Radio Packet Modem

page 6

TECHNICAL SPECIFICATION

Note:

1.

RPM3 uses BiM3A (64kbps UHF Wide Band FM) transceiver for its RF interface. Please refer

to BiM3A data sheet for further details on the RF specification.

2.

BiM3A consumes 7mA on transmit and 11mA on receive

General

Operating Voltage

5VDC or 3VDC

Operating Current

ACKMODE ON

Transmitting

Receiving

Average 15mA (Data streaming)

Average 15mA (Data streaming)

ACKMODE OFF

Transmitting

Receiving

Average 14mA (Data streaming)

Average 15mA (Data streaming)

Auto-Standby

4mA (Waiting for Connection)

Power-down

70

µA

Standard Operating frequency

869.85MHz (EU)

914.50MHz (USA, Canada)

TX spectral bandwidth @ -40dBc

250kHz

Operating Temperature

-20ºC to +70ºC

Configuring options

Built-in command line configurator

Interface

Serial Interface

Inverted RS232 at 5V or 3V CMOS level

Serial Protocol

8 data/1 stop/no parity

Serial Signals

RXD, TXD, CTS, WAKE

Power down Control

Via WAKE/DTR signal

Serial Handshaking

Selectable as CTS signal or none

DTE Interface Speed

600/1200/2400/4800/9600/19200/38400/57600/115200 bps

Air Interface Speed

64kbps

Overall throughput – Acknowledged

17kbps (max)

3.6kbps (slots)

1.8kbps (slotsw)

– Unacknowledged 28kbps (max)

3.6kbps (slots)

1.8kbps (slotsw)

Receiver

Sensitivity

-100dBm for 1ppm BER

LO leakage (conducted)

-110dBm (max)

Transmitter

Output Power (typical)

+2dBm (EU version)

-1dBm (US version)

Spurious Emissions

-40dBm max