Troubleshooting the RRW1B

PROBLEM: No matter how I adjust R20, the LED will not light.

SOLUTION: Check the orientation of D20, it may be you installed it back- wards. If not, check your power, you should see +5V on pins 5 and 6 of U20. If you have no power, check the wall transformer to make sure the center lug is plus, and the ring is minus. AC transformers like the AC125 should be no problem.

PROBLEM: The green LED doesn’t light up and blink when I aim my remote at it.

SOLUTION: There is a lot that can go wrong here, so we will go from the most likely to the least. We will assume D20 has lit up at some point before you ad- justed R20. 1. If you have not tested the RRW1A, do so at this point, it may not be transmitting. 2. You are too far away from the transmitter, bring them closer together. 3. You have the squelch control (R20) turned too far up, try turning it back to where the LED is just flickering, and see if the remote begins to make it blink or not. 4. The receiver has a assembly problem. Check part installation and orientation.

PROBLEM: Everything else is working, but my devices aren’t responding to the remote signals.

SOLUTION: You will need to check your IR LED installation. It is easy enough, just swap the red and black wires on the screw terminal. Things should start working nicely unless there is an assembly error on the board.

RRW1B SPECIFICATIONS

Power Supply:

•AC supply = 6 to 12 VAC or DC supply = 8 to 16 VDC @ 100 mA (+ tip)

•Current draw with a 12VDC source averages about 20 mA (RRW1B). Dimensions:

•PCB size: 4.0” x 4.7”

•Max component height: 7/8”

Miscellaneous:

•Works with any standard 38 kHz carrier IR remote.

•Max effective BAUD rate: 2400 bps – standard for remotes.

•IR receiver module has an effective pick-up range of 11 meters (36 feet!).

•Max IR LED (D22 of RRW1B) wire extension length: Unknown!! Tested over 750 feet and still going!

RRW1B • 18

rrw1b specifications

The Ramsey Electronics RRW1B is a versatile and compact wireless transmitter and receiver system designed for various applications, including remote control and communications. This innovative device operates on the 27 MHz band, offering a robust solution for users seeking reliable wireless connectivity. One of the standout features of the RRW1B is its impressive transmission range, allowing for operation up to 1000 feet under optimal conditions. This makes it suitable for both hobbyist projects and professional applications where distance and reliability are critical.

The RRW1B utilizes frequency modulation (FM) technology, which ensures clear signal transmission and minimal interference from other devices operating on similar frequencies. Its design incorporates advanced circuitry that enhances its performance, contributing to a stable link between the transmitter and receiver while effectively reducing noise. This technology is particularly beneficial for applications in remote sensing, data logging, and control systems where accuracy is paramount.

Another notable characteristic of the RRW1B is its user-friendly interface, which allows for easy setup and configuration. The system is designed with the end-user in mind, featuring color-coded terminals and intuitive controls that facilitate straightforward installation. This aspect makes it accessible to both beginners and experienced technicians, reducing the learning curve typically associated with wireless systems.

The RRW1B is also characterized by its low power consumption, making it an energy-efficient choice for long-term use. This is particularly advantageous for battery-operated devices, extending their operational lifespan and reducing the frequency of battery replacements. Moreover, the RF (radio frequency) modules used in the RRW1B are known for their durability and resilience, ensuring that users can rely on the system in various environments, including those with challenging electromagnetic conditions.

In summary, the Ramsey Electronics RRW1B stands out due to its excellent range, FM technology, ease of use, and energy efficiency. These features make it a popular choice among hobbyists and professionals alike, providing a seamless wireless solution for a myriad of applications. Whether users are looking to enhance their home automation systems, develop remote-control gadgets, or implement wireless data communication, the RRW1B proves to be a capable and dependable option. Its combination of performance, simplicity, and versatility makes it a valuable addition to the toolkit of anyone interested in electronics and wireless technology.