Radiometrix Ltd

HVR2 Data Sheet

page 5

Condensed specifications

Frequency

433.05-434.775MHz

Frequency stability

±1.5kHz

Channel spacing

25kHz

Number of channels

32 channels selected via RS232 interface

or 16 channels by parallel port

Operating temperature

-10 C to +60 C (Storage -30 C to +70 C)

Spurious radiations

Compliant with ETSI EN 300 220-3 and EN 301 489-3

Interface

User

5pin 0.1" pitch molex

Channel

4pin 0.1" pitch molex

RF

2pin 0.1" pitch molex

Sensitivity

-112dBm for 1 part per 1000 BER

-120dBm for 12 dB SINAD

S/N ratio

25dB (min), 30dB (typ) on AF output

AF bandwidth (-3dB)

4kHz

image / spurious / adjacent channel

<-55dB

Blocking

<-85dB

LO re-radiation

<-60dBm

Supply

Voltage

3.7V – 15V

Current

30mA

Outputs

RSSI, audio, data

Size

50 x 30 x 10mm

Channel to channel hop

<5ms

Power on to valid audio

<10ms

Power on to stable data out

(50:50 mark / space)

<10ms

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 10ms period is required to stabilise data

output mark/space. i.e. allow at least 10ms of preamble

The high vibration resistant HVR2 receiver differ from the Low Cost RLC2 receiver in the

following key features:

HVR2

RLC2

Footprint

Industry standard

Industry standard

Frequency band

433.05 – 434.775MHz

433 - 435 MHz

Channels

32 serial, 16 parallel

32 parallel/serial

Parallel channel select

4 pins

4 pins (and 1 jumper link)

SAW front end filter

Yes

Yes

Supply

3.7V-15, 30mA

3.7V-15, 18mA

Spurii

<-55dB

<-60dB

Sensitivity

-120dBm

-120dBm

Ultimate S/N

25dB (min), 30dB (typical)

35dB (min), 40dB (typical)

Start up time (preamble)

<10ms

~50ms

Channel to channel hop

<5ms

~25ms

Reprogramming (frequency)

Limited

Full

Vibration resistant

High, up to 500Hz

Limited

Local Oscillator

Direct Digital Synthesiser (DDS)

Voltage controlled (VCO)