Ramsey Electronics SHA2 manual

You can set the left and right channels independently of each other. H1 controls the right channel of the stereo output and H2 controls the left channel. Pin 1 on both H1 and H2 is marked by a triangle. By placing a jumper block between pins 1 and 2 of H1 and H2, the buffered output follows the input exactly. Whatever you have coming in on the audio input is what will be sent out on J2. Placing the jumper block between pins 2 and 3 of H1 and H2 causes the buffered output to have the same tone controls applied to it as the headphone output. You can put the jumper block on H1 and not H2, on H2 and not H1, etc. so that one channel would have tone control applied to it and the other would exactly follow the input. It’s all up to you.

Once you have the jumpers set, try plugging the buffered output into the line level input on a piece of equipment and make sure it’s working correctly. If you have the tone controls set and have H1 and H2 jumpered for it you should be able to hear that the original line level source has been changed and now matches what you’re hearing through the headphones.

That’s about it. You’re ready to start using your SHA2.

One last thought about the buffered output. You can use it to daisy chain more than one SHA2 so that all headphone outputs on the chain are hearing the same source. Simply plug the buffered output of the first SHA2 into the line level input of the second SHA2. Now you have 4 headphone jacks all on the same “channel”, all hearing the same audio. Think of the possibilities for long car trips. A portable DVD player with a line level audio output, 2 to 4 children in the back of a minivan all happily listening to a movie on their own headphones, peace and quiet for the driver. Sounds lovely, doesn’t it?

We’re sure you’ll come up with other uses for your SHA2, such as plugging the line level output of your Bose radio into it so that you can listen on headphones. Or plugging a line level audio source into your Ramsey FM transmitter through an SHA2 so that you can monitor the broadcast without having to tune in an FM radio. And there are probably many other applications that we haven’t even thought of yet. Let us know if you come up with something interesting, ok?

SHA2 • 20

SHA2 specifications

Ramsey Electronics SHA2 is a state-of-the-art digital transmitter designed for a wide range of applications, including DIY projects, short-range communication, and remote sensing. This powerful device allows users to transmit audio, data, and control signals wirelessly with outstanding clarity and reliability.

One of the standout features of the SHA2 is its transmission range, which can reach up to several hundred meters depending on the environment and conditions. This capability makes it an ideal choice for various applications, from hobbyist projects to more complex commercial uses. The SHA2 operates in the 2.4 GHz ISM band, which is a widely used frequency range that provides robust performance and minimal interference from other electronic devices.

The SHA2 incorporates advanced Frequency Hopping Spread Spectrum (FHSS) technology, enhancing its resilience against potential disruptions. By rapidly changing frequencies during transmission, FHSS minimizes the chance of interference and improves the overall signal integrity, ensuring a stable connection even in crowded environments. This feature is particularly beneficial for applications that require reliable and consistent data transmission.

Moreover, the SHA2 is equipped with powerful modulation schemes that support various encoding methods. As a result, users can transmit different types of signals, including analog audio, digital data, and even coded control signals. This versatility allows for creative approaches to problem-solving in diverse fields, such as automation, security systems, and wireless audio transmission.

In terms of user-friendly design, Ramsey Electronics has made the SHA2 easy to integrate into existing systems. Its compact size, along with clearly marked connection points, allows for streamlined installation. The module's low power consumption is another critical advantage, making it suitable for battery-operated devices and applications that prioritize energy efficiency.

The SHA2 is also compatible with various microcontrollers and development platforms, ensuring seamless connectivity regardless of the user's preferred technology. With its durable construction and excellent performance specifications, the Ramsey Electronics SHA2 stands out as a reliable choice for anyone looking to leverage wireless communication technology effectively. In summary, the SHA2 excels in transmission range, interference resistance, versatile signal encoding, user-friendly integration, and energy efficiency, making it a prime candidate for both hobbyists and professionals alike.