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RX6000

型号:

RX6000

描述:

458MHZ射频发射器和接收器[ 458MHZ RF TRANSMITTER & RECEIVER ]

品牌:

RFSOLUTIONS[ RFSOLUTIONS.LTD ]

页数:

5 页

PDF大小:

243 K

458MHZ RF TRANSMITTER & RECEIVER  
TX/RX6000  
FEATURES  
Miniature Crystal Module  
500mw RF Output Power  
Very High Frequency Stability  
Up To 20km Range (Direct Line Of Sight)  
1-3km Range (Within Buildings)  
15 Single Channel Versions Available  
Wide Tx Voltage Range 6.5 - 9v Dc  
Rx - Single Supply Voltage 5vdc  
Low Power Consumption  
Fast Response Time  
Standard TTL/CMOS Interface  
Mpt1329 Licence Exempt  
DESCRIPTION  
The R.F. Solutions 458MHz FM Transmitter and receivers are compact ‘credit card’ sized crystal controlled  
modules, capable of transmitting data up to 20 kilometres in direct line of sight, up to 1-3km within  
buildings.  
These modules are crystal controlled for frequency accuracy and are supplied tuned to one of 15 available  
channel frequencies.  
The units are suitable for general purpose telemetry applications where small size and high data rates are  
needed. The module can transmit digital or analogue (GMSK, or FSK) data at up to 9600baud rate.  
Supplied as a completed module, no modification or pre tuning is necessary. Connections are by gold  
plated pins on the module base, enabling the module to be socketed for interchangeability (e.g. for other  
frequency channels).  
The radios have been designed to meet ETSI300-220, EN50081-1, EN50082-1 EMC directive and are DTI  
approved under MPT1329 for licence free use.  
TYPICAL OPERATION  
Host Data  
Source  
TX6000  
RX6000  
Host Data  
Source  
DS006-2  
Oct 02  
2003 REG No 277 4001, ENGLAND.  
Page 1  
458MHZ RF TRANSMITTER & RECEIVER  
TX/RX6000  
Frequency of Operation  
The TX/RX6000 modules operate on the 458.500MHz to 458.950MHz telemetry band. There are 15  
channels within this band. The TX/RX6000 modules are supplied at one of these specific channel  
frequency bands. When ordering the modules, the exact frequency must be stated.  
Ch No (Hex) Frequency (MHz)  
02  
04  
06  
08  
0A  
0C  
0E  
10  
12  
14  
16  
18  
1C  
1E  
20  
22  
458.525  
458.550  
458.575  
458.600  
458.625  
458.650  
458.675  
458.700  
458.725  
458.750  
458.775  
458.800  
458.850  
458.875  
458.900  
458.925  
Radio Propagation  
With any radio system, there are a number of factors affecting the system performance. These are  
Transmitter power output  
Height of transmitter and receiver antenna  
Length of feeder cables to the antenna  
Type and efficiency of antenna  
Surrounding topography  
The weather  
Antennas  
The types of antenna we recommend for this Modem are;  
Helical : The smallest, most compact antenna, has a gain of <1, designed for short ranges up to 2km  
1/4 Wave Flexi : General purpose antenna with gain <1 gives slightly better range than Helical  
Yagi : A highly directional antenna (Looks similar to a standard TV aerial). Typically has a gain of +3dB.  
The output power of a transmitter connected to a Yagi must be reduced in order to comply to the DTI  
specifications. This does however have the advantage of reducing the power consumed by the transmitter  
to achieve the same range. By connecting a Yagi to a receiver, the system range may be extended to  
20km.  
Note : Try to keep the feed wire to the antenna as short as possible, If the antenna is to be mounted some  
distance away low loss 50co-axial cable should be used as the interconnection.  
Power Supply  
It is not advisable to use a switched mode power supply, either to drive the TX6000/RX600 module or  
within close proximity to it. Switched mode power supplies can produce high energy radio frequencies over  
a broad spectrum potentially causing interference with the operation of the Modem.  
DS006-2  
Oct 02  
2003 REG No 277 4001, ENGLAND.  
Page 2  
458MHZ RF TRANSMITTER & RECEIVER  
TX/RX6000  
Transmitter Connections : Pins on underside of Module  
Pin  
Description  
Direction  
1
2
3
4
5
6
7
8
Ground  
Modulation Input 500mVpk-pk +ve freq deviation  
Modulation Input 500mVpk-pk -ve freq deviation  
Digital Data input (TTL)  
Input  
Input  
Input  
Input  
Switched +5V (supply to Rx when used as transceiver)  
Test  
Output  
Output  
Output  
Input  
Regulated +5V  
Transmitter ON  
(Connect to Common to start the Transmitter)  
Supply Voltage to Module (7.2 - 9V)  
Receiver RF Output (for use in transceiver)  
Ground  
9
Input  
Output  
Input  
10  
11  
12  
Antenna  
Output  
Receiver Connections : Pins on underside of Module  
Pin  
Description  
Direction  
1
2
3
4
5
6
7
11  
12  
Ground  
Receiver Signal Strength Indicator (RSSI) 0-2V Log Range  
Demodulated Output  
Input  
Output  
Output  
Output  
Input  
Output  
Input  
Input  
Test (unfiltered modulated output)  
+5V supply to Local Oscillator and RF Amplifier  
Digital Data Ouptut  
+5V supply to IF and LF Amplifiers  
Ground  
Antenna  
Antenna  
Power Save Mode  
The receiver may be put into power save mode by removing the 5V supply to pin 5. The RSSI will still  
indicate a valid signal. After re-applying power to pin5 the data output will be valid within <5msecs.  
12.5mm  
50.8  
12  
11  
10  
4.0  
9
8
7
6
5
4
3
2
1
15.0  
36  
Top View  
(pins on underside)  
25.4  
2.5  
2
2.8  
NOTES  
Pins on a 2.54mm pitch  
Pins are 2.6 x DIA0.51mm in Gold Plate  
Pins 8, 9, 10, 11 are on the transmitter only  
4.0  
All Dimensions in mm  
Mechanical Details  
DS006-2  
Oct 02  
2003 REG No 277 4001, ENGLAND.  
Page 3  
458MHZ RF TRANSMITTER & RECEIVER  
TX/RX6000  
Circuit Connections  
12  
11  
10  
12  
0V  
0V  
1K  
+7V  
TX on  
9
8
7
6
5
4
3
2
1
+5V  
7
6
5
4
3
2
1
Digital Data Out  
Digital Data In  
RSSI  
0V  
Transmitter Connections  
Receiver Connections  
Transceiver Application Connections  
Note  
12  
11  
10  
This link to be exactly  
100mm of Coaxial Cable  
9
8
7
6
5
4
3
2
1
+7V Supply Voltage  
Transmitter On  
Digital Data In  
Digital Data Out  
RSSI  
Transmitter Connections  
0V  
12  
9
8
7
6
5
4
3
2
1
When a transceiver is configured, the  
receiver module is placed into power  
save mode automatically when the  
transmitter is powered on.  
Receiver Connections  
DS006-2  
Oct 02  
2003 REG No 277 4001, ENGLAND.  
Page 4  
458MHZ RF TRANSMITTER & RECEIVER  
TX/RX6000  
ABSOLUTE MAXIMUM RATINGS  
Storage Temperature..........................................................-30 to +85o Celsius.  
Operating Temperature....................................................... -25 to +55o Celsius.  
DIMENSIONS  
Length = 36,  
Width = 51,  
Height = 12.5mm  
Weight = 30grams  
TECHNICAL SPECIFICATION  
Ambient temperature  
= 25o Celsius.  
ELECTRICAL CHARACTERISTICS  
Transmission Frequency  
Channels  
MIN  
TYPICAL  
458.850  
1
MAX  
DIMENSION  
NOTE  
MHz  
Modulation  
See Note 2  
TRANSMITTER  
Supply Voltage  
Supply Current  
7
150  
9
200  
500  
5
0.8  
5
V
mA  
mW  
mSecs  
V
170  
Transmitting  
Radiated Power  
Start up Time  
Data Input (Logic Low)  
Data Input (Logic High)  
RECEIVER  
0
3.5  
0.2  
3.8  
TTL  
TTL  
V
Supply Voltage  
4.7  
5
15  
500  
5.3  
V
mA  
µA  
dBm  
Vpk-pk  
V
Supply Current  
Power Save Supply Current  
Sensitivity  
-122  
Modulation Output  
Data Ouput (Logic Low)  
Data Ouput (Logic High)  
5
0.8  
5
0
3.5  
0.2  
3.8  
TTL  
TTL  
V
Notes:  
1. There are 15 channels in 5MHz sub-bands. The module is supplied at one fixed frequency.  
2. Modulation used is F3D  
PART No  
TX6000-XXX  
RX6000-XXX  
DESCRIPTION  
Transmitter 458MHz XXX = Frequency Channel  
Receiver 458MHz XXX = Frequency Channel  
For more information or general enquiries, please call;  
R. F. Solutions Ltd.,  
Unit 3, Cliffe Industrial Estate,  
South Street,  
Lewes,  
E Sussex, BN8 6JL. England.  
Tel +44 (0)1273 898 000. Fax +44 (0)1273 480 661.  
Email sales@rfsolutions.co.uk  
Web Page http://www.rfsolutions.co.uk  
RF Solutions is a member of the Low Power Radio Association.  
Data appears courtesy of Warwick Industrial Electronics Ltd  
Information contained in this document is believed to be accurate , however no representation or warranty is given and no liability is assumed by R.F. Solutions Ltd. with respect to the accuracy of  
such information. Use of R.F.Solutions as critical components in life support systems is not authorised except with express written approval from R.F.Solutions Ltd.  
DS006-2  
Oct 02  
2003 REG No 277 4001, ENGLAND.  
Page 5  
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