Synthesised Radio Modules
TX8000/RX8000
Specification
ABSOLUTE MAXIMUM RATINGS
Storage Temperature............................................... -30 to +85 Celsius
Operating Temperature ........................................... -25 to +55 Celsius
Dimensions
Length = 36mm
Width = 51mm
Height = 14.5mm
ELECTRICAL CHARACTERISTICS
MIN
TYPICAL
MAX
DIMENSION NOTE
Frequency Range
458.500
400.000
860.000
485.950
490.000
930.000
MHz
MHz
MHz
UK
World
World
Channels
1
Channel Separation
Start up Time
Modulation
12.5
3.0
25.0
5.0
F3D
25.0
7.0
KHz
mSecs
Factory
TRANSMITTER
RF Output Power
Analogue Input
Digital Input
5.0
500.0
mW
Vp-p
V
0.5
4.7
8
mod.
TTL
3.5
7.2
270.0
5.0
10.0
390.0
Power Supply
V
290.0
mAmps
RECEIVER
Sensitivity
10dBSIN
AD
-112
dBm
Analogue Output
Digital Output
Power Supply
2.0
5.0
5.5V
15.0
Vp-p
V
V
+/-5KHz
TTL
5.0
12.0
12
18.0
mAmps
Note: Switch mode power supplies can produce RF frequencies that will interfere with the receiver signal.
PART No.
DESCRIPTION
TX8000.XXX
RX8000.XXX
Transmitter XXX = RF Frequency Band
Receiver XXX = RF Frequency Band
RADIO PROPAGATION
ANTENNA
With any radio system there are a number of factors
which affect the system performance. These are:
Transmitter power output.
X603 Quarter Wave Antenna
Low cost, mobile, omni-directional, short range
approximately 2km
Height of transmitter and receiver antenna.
Length and type of coaxial feeder cable to the
antenna.
X604 Mast Mounted Dipole Antenna
Omni-directional, base station, range approximately
10km
Type and efficiency of the antenna.
Topography between transmitter and receiver.
The weather.
X605 High Gain Yagi Antenna
Directional beam of 40°, range approximately
10-20km, usually used on receivers only.
DS8000-1
Dec 02
©2002 REG No 277 4001, England.
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