lead is not only shorter than the other, it has a band or stripe running down the body of the part next to the short lead that shows zeros or minus signs. Be sure to install the part so that the positive lead goes into the hole marked with a “+” sign and the negative lead into the other. Push the part down until it sits on the board and solder both leads.

Install C15, 10nF ceramic disc capacitor (marked 103).

Install C6, 220nF ceramic disc capacitor (marked 224).

Install C20, 390nF ceramic disc capacitor (marked 394).

Install C8, 220nF ceramic disc capacitor (marked 224).

Install C16, 10uF electrolytic capacitor. Remember to orient the part following the “+” sign on the silkscreen and Parts Layout Diagram.

Install R8, 47k ohms (yellow-violet-orange).

Install C3, 10nF ceramic disc capacitor (marked 103).

Install C26, 220nF ceramic disc capacitor (marked 224).

Install C17, 10uF electrolytic capacitor. Remember the polarity when installing.

Install C7, 220nF ceramic disc capacitor (marked 224).

Install C19, 390nF ceramic disc capacitor (marked 394).

Install C18, 10uF electrolytic capacitor. Watch orientation!

Ok, if you haven’t already done so you might consider a little break at this point. Rest your eyes, stretch, then take a look at your parts placement and solder joints to be sure they look great before moving on.

Install C21, 10nF ceramic disc capacitor (marked 103).

Install R13, 47k ohm resistor (yellow-violet-orange).

Install C25, 10nF ceramic disc capacitor (marked 103).

Install C30, 10uF electrolytic capacitor. I’d remind you to be careful how you install the part, remembering to check the polarity before soldering, but I don’t want to bug you about it.

Install C13, the last 10nF ceramic disc capacitor (marked 103).

Install C10, 10uF electrolytic capacitor. Polarity.

Install C11, 100pF ceramic disc capacitor (marked 100, 100K, or 101).

SHA2 • 14

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Ramsey Electronics SHA2 manual
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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.
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