STR450 datasheet(7/7 Pages) ETC

7 / 7 page

Wood and Douglas Ltd, Lattice House,

Baughurst Road, Tadley, Hampshire RG26 5LP

Tel: +44(0) 118 981 1444. Fax: +44(0) 118 981 1567

1.1/October 1998. 1892 1207

TECHNICAL SPECIFICATIONS

Frequency range

430 - 450 MHz, 450 - 470 MHz

Switching bandwidth

5MHz

Frequency stability

+/-1.5kHz

Number of RF channels

1 of 128 (16 randomly programmed, 112

sequential), serial select/reprogram 1200 baud

RS232

Supply voltage

5.5 - 15V DC -ve earth

Supply current at 7.2V

<12mA

Channel switching delay

<50mS across switching bandwidth

Channel spacing

12.5kHz/20kHz/25kHz available

Modulation type

F1D.F2D/F3D

Sensitivity

<-115 dBm for 12dB SINAD

Image/spurii

>60dB

Intermodulation response

rejection

>50dB

Blocking

>80dB

Intermediate frequencies

21.4 MHz and 455 kHz

Adjacent channel selectivity :

>60dB for 12.5kHz channel spacing

>70dB for 25kHz channel spacing

Audio response

9Hz to 6kHz at -3dB

Recovered audio level

200mV p-p typ into 10k ohms

Spurious emissions

(conducted & radiated)

in accordance with ETS/CEPT specifications

Interface connections

Solder terminals

RF connection

SMB bulkhead male

Operating temperature

-10

oC - +55oC

Storage temperature

-30

oC - +70oC

Size overall

-62 x 60 x 25 mm

Weight

110g

Type approval

MPT 1329

Squelch type

Noise operated open collector output

General facilities

RSSI output (0 to +3V nominal) option

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