Radiometrix Ltd

HMT2 Data Sheet

page 6

Condensed specifications

Frequency

As supplied:

Version 1: 458.525 - 459.1MHz (25kHz steps)

Version 2: 458.8 - 459.3MHz (25KHz steps) and 461.3MHz

Frequency stability

+/- 1.5kHz

Channel spacing

25kHz

Number of channels

16 channels controlled by parallel port

32 channels controlled via RS232 interface

Transmit

Output power

+27dBm (500mW) ±1dB

TX on switching time

30 ms from TXE transition

Modulation type

FSK (F3D)

TX modulation bandwidth

DC – 3kHz (3v CMOS compatible DATA input)

Adjacent channel TX power

<-37dBm

TX spuri

<-36dBm (no output in standby)

Spurious radiations

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

Inputs

data (CMOS/TTL compatible)

Supply

Voltage

+5V regulated (or 6-9V in –R version)

Current

350mA nominal transmit

<5µA standby (TXE high or floating)

Interface

User

8 pin 0.1" pitch single row header

RF

6 pin 0.1" pitch

Recommended PCB hole size

1.2mm (min.)

Size

66 x 23 x 9mm

Operating temperature

-20 to +55

Intended approval

ETSI Radio standard EN 300 220-3 and EMC standard EN 301 489-3

Ordering Information:

Part No.

Notes

Frequency band

HMT2-458-5

version 1

458.525 - 459.1MHz

HMT2-460-5

version 2

458.8 - 459.3MHz and 461.3MHz

HMT2-458-5-R

version 1; regulator version

458.525 - 459.1MHz

HMT2-460-5-R

version 2; regulator version

458.8 - 459.3MHz and 461.3MHz

Matching Receiver

LMR2-458-5 (version 1)

458.525 - 459.1MHz

LMR2-460-5 (version 2)

458.8 - 459.3MHz and 461.3MHz