Instruction d'utilisation Ramsey Electronics Wireless RF Link Receiver/Decoder RXD433

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WIRELESS RF LINK
RECEIVER/DECODER
MODULE
Ramsey Electronics Model No. RXD433
Need a data transmitter or receiver for your remote wireless
application? These compact units are perfect for any project;
car alarms, door openers, home security, you name it!

• SAW Resonators for high stability – no drift!
• Compact size with low current demand.
• 433 MHz license free band.
• Sensitive superhet receiver with RF LNA.
• Automatic tuning – no manual adjustments.
• Operates on 5 volts

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RAMSEY WIRELESS RF LINKS • TXE433 or 916 Transmitter & Encoder Module • RXD916 Data Receiver& Decoder • RX433 or 916 Data Receiver • TX433 or 916 Data Transmitter RAMSEY TRANSMITTER KITS • FM10A, 25B FM Stereo Transmitters • TV6 Television Transmitter • “Cube” TV Transmitters RAMSEY RECEIVER KITS • FR1 FM Broadcast Receiver • AR1 Aircraft Band Receiver • SR2 Short-wave Receiver •

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THE RXD433 This wireless RF receiver/decoder has a 4 bit data output that will match the data sent by the encoder, TXE433. The output is CMOS compatible when the unit is run on +5 volts. The demod bandwidth is selectable by the placement of jumpers on the circuit board. The table on the schematic shows jumper positions for different bandwidths. Narrower bandwidths will give slightly better range at the expense of more limited constraints on battery voltage tolerance over time and

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RXD-433 • 4

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Data lines: Access your data here. Data output will match data input to transmitter. Address lines: Ground individual DV: Data Valid line. Attach your op- lines to match transmitter address tional LED circuit or other data valid indi- lines. GND: Attach your power supply ground here. V+: Attach your +5 volt source here. Demod bandwidth select: Jumper as Antenna: Attach your shown in chart on schematic to change antenna here. bandwidth A0 through A7: These are the add

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RXD-433 • 6

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The Ramsey Kit Warranty Please read carefully BEFORE calling or writing in about your kit. Most problems can be solved without contacting the factory. Notice that this is not a "fine print" warranty. We want you to understand your rights and ours too! All Ramsey kits will work if assembled properly. The very fact that your kit includes this new man- ual is your assurance that a team of knowledgeable people have field-tested several "copies" of this kit straight from the Ramsey Inventory. If

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Price: $5.00 Ramsey Publication No. MRXD433 Assembly and Instruction manual for: RAMSEY MODEL NO. RXD433 RAMSEY ELECTRONICS, INC. 590 Fishers Station Drive Victor, New York 14564 Phone (585) 924-4560 Fax (585) 924-4555 www.ramseykits.com RXD-433 • 8