18
1891 1210
1.0/November 1998
Section 4
Technical specifications
Frequency range
:
405 - 470 MHz
Switching bandwidth
:
8 MHz
Frequency stability
:
+/-2ppm
Number of RF channels
:
up to 128 (16 randomly programable, 112
sequential), serial select/reprogram, 1200 baud
RS232 or
1 of 8 parallel select
RF output power into 50 ohm
:
100 mW adjustable to 5mW
:
1 - 10 mW version available
Adjacent channel power
:
<200nW (-37dBm)
TX switching time
:
<60 mS
Modulation input
analogue
:
200 mV to 5V p-p AC coupled
digital
:
+3 to 12V square wave DC coupled
Frequency response
:
9Hz to 3kHz at -3dB
Deviation
:
+/-1.5kHz nom (±2.5kHz max)
Channel switching delay
:
<50mS across switching bandwidth
Channel spacing
:
12.5kHz
Modulation type
:
F1D/F2D/F3D
Spurious emissions
(conducted & radiated)
:
in accordance with ETS/CEPT specifications
Supply voltage
:
6 - 15V DC -ve earth
Supply current at 7.2V
:
<100mA for 100mW output
Interface connections
:
2 and 10 pin 0.1" header
RF connection
:
3 pin 0.1" header
Operating temperature
:
-20
o
C to +55
o
C
Storage temperature
:
-30
o
C to +70
o
C
Size overall
:
60 x 39 x 15 mm
Weight
:
30gm
Type approval
:
designed to meet ETS 300 220
General facilities
:
+5V output
:
analogue and digital inputs
Summary of Contents for ST500
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