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TXE433 

 2  

 
 
 
 

RAMSEY WIRELESS RF LINKS 

         •

 RX916 Data Receiver Module

 

         •

 TX916 Transmitter Module 

 

         •  

RXD916 Data Receiver & Decoder Module

 

         •  

TXE916 Transmitter & Encoder Module 

         •  

RXD433 Data Receiver & Decoder 

       

•  

TX433 Data Transmitter Module 

       

  RX433 Data Receiver 

 
RAMSEY TRANSMITTER KITS 
       

• 

FM10A, 25 FM Stereo Transmitters 

       

• 

TV6 Television Transmitter 

 
RAMSEY RECEIVER KITS 
       

• 

FR1 FM Broadcast Receiver 

       

• 

AR1 Aircraft Band Receiver 

       

• 

SR2 Short-wave Receiver 

       

• 

AA7 Active Antenna 

       

• 

SC1 Short-wave Converter 

 
RAMSEY AMATEUR RADIO KITS 
       

• 

HR Series HF All Mode Receivers 

       

• 

QRP Series HF CW Transmitters 

       

• 

CW700 Micro Memory CW Keyer 

       

• 

PA Series VHF and UHF Power Amplifiers 

       

• 

Packet Computer Interfaces 

       

• 

QRP Power Amplifiers 

 
RAMSEY MINI-KITS 
Many other kits are available for hobby, school, Scouts and just plain FUN. New 
kits are always under development. Write or call for our free Ramsey catalog.    

 

TX433 WIRELESS TRANSMITTER/ENCODER INSTRUCTION MANUAL

 

Ramsey Electronics publication No. MTX433 Revision 1.1 

First printing: July 1999 

 

 

 
COPYRIGHT  1996 by Ramsey Electronics, Inc. 590 Fishers Station Drive, Victor, New York 
14564. All rights reserved. No portion of this publication may be copied or duplicated without the 
written permission of Ramsey Electronics, Inc. Printed in the United States of America.

 

Summary of Contents for TXE433

Page 1: ...rms door openers home security you name it Powerful 10 dBm output up to 600 range SAW Resonators for high stability no drift Compact size with low current demand 433 MHz license free band Automatic tu...

Page 2: ...rs QRP Series HF CW Transmitters CW700 Micro Memory CW Keyer PA Series VHF and UHF Power Amplifiers Packet Computer Interfaces QRP Power Amplifiers RAMSEY MINI KITS Many other kits are available for h...

Page 3: ...duction 4 How Encoders and Decoders Work 4 Schematic Diagram 6 Antenna Considerations 8 Hook up diagram 9 Conclusion 10 Warranty 11 WIRELESS RF LINK TRANSMITTER MODULE INSTRUCTION MANUAL FOR Ramsey Pu...

Page 4: ...oise that must be filtered for proper data reception Rather than use microprocessors to detect and correct errors an encoder IC and corresponding decoder IC can be used on the transmitter and receiver...

Page 5: ...s all use the same frequency you would run into interference if you tried to use more than one transmitter at the same time We ve all had this experience when travelling you re tuning the radio and ha...

Page 6: ...TXE433 6...

Page 7: ...TXE433 7...

Page 8: ...ill depend on terrain obstructions and height of antenna Buildings can reflect RF energy making it difficult or impossible to receive the desired signal Also if a reflected signal is bounced off of a...

Page 9: ...mit enable pin to send data to the receiver A0 through A7 A0 through A7 These are the address lines Individual ad dress lines should be connected to 5 volts or ground to match the RXD433 transmitter a...

Page 10: ...the easiest most user friendly format that is possible As our customers we value your opinions comments and additions that you would like to see in future publications Please submit comments or ideas...

Page 11: ...h be assured that the 1K ohm resistors are actually the missing 10 K parts Hum m m I guess the red band really does look orange Ramsey Electronics project kits are packed with pride in the USA If you...

Page 12: ...TXE433 12 Price 5 00 Ramsey Publication No MTXE433 Assembly and Instruction manual for RAMSEY MODEL NO TXE433...

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