Operating Instructions

Wood and Douglas Ltd
Lattice House, Baughurst Road, Tadley, Hampshire RG26 5LP 1892 1274
Tel: [phone]. Fax: [phone]/September 2000
TECHNICAL SPECIFICATION
Frequency range
: 580 - 625MHz
Switching bandwidth : 8MHz
Frequency stability
: +/-2.5ppm
Number of RF channels : up to 128 (16 randomly programmed, 112 sequential),
serial select/reprogram, 1200 baud RS232 or
1 of 8 parallel select (10 pin option)
Channel switching delay
: <50mS across switching bandwidth
Channel spacing : 25kHz
Modulation type
: F3D
Spurious emissions
(conducted & radiated)
: in accordance with ETS/CEPT specifications
Supply voltage : 6-12 DC, -ve earth
Supply current at 7.2V
: <40mA
Interface connections : 2 + 10 pin 0.1" header
RF connection
: 3 pin 0.1" header
Operating temperature : -30
o
C to +55
o
C
Storage temperature
: -30
o
C to +70
o
C
Weight : 35g
Size
: 60 x 39 x 15mm (2.36 x 1.53 x 0.59 inches)
Type approval :
Sensitivity
: <-117 dBm for 12dB SINAD (25 kHz)
(Measured with a flat audio response)
Image/spurii
: >60dB
Intermodulation response
rejection : >60dB
Blocking
: >75dB
Intermediate frequencies : 45 MHz and 455kHz
Adjacent chan. selectivity
: >60dB for 12.5kHz channel spacing
>70dB for 25kHz channel spacing
Audio response
: 9Hz to 6kHz at -3dB (25kHz channels)
Recovered audio level : >250mV p-p (±20%) into 10kS
Squelch type
: Noise operated open collector output
General facilities : RSSI output (0.5 to +2V nominal)
+5V output
Independent data output