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Ramsey Electronics SHA2 manual Assembly Steps

Models: SHA2

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ASSEMBLY STEPS

You’ve got your parts sorted, your iron is warmed up, so let’s get started. We’ll follow a logical order when installing the parts in your kit. Take your time and be sure to make good, solid solder connections.

Save a couple of the longer leads that you snip off the back when trimming. You need one of them for a later step.

Install U3, LM1036N dual DC operated tone/volume/balance IC. You’ll see the PC board silkscreen shows a notch on one end of the part; this corresponds to the notch on the IC and shows you which way to place the part. Line up the notches and make sure that all pins are through the board. Since no other parts have been installed, when you flip the board over to solder the part you can have it sit flat on your bench and the board will hold U3 in place. That way the part will be correctly seated on the board. That’s why we’re putting the ICs in first! We typically solder the two corner pins, flip the board over to check placement, then solder the rest.

Install U1, LMC660AIN quad rail to rail op amp. Follow the notched end for placement and be sure the part is sitting flat on the board before soldering all the pins.

In the same way, install U2 and U4, the LM386N low voltage audio power amplifiers. Orient the notched ends and check placement before soldering all 8 pins on each chip.

Ok, you’re warmed up now. Let’s start installing the smaller components. If you place the board so that the jacks, J1 through J4 are on the bottom and the silkscreen writing is facing you so that you can read it, we’ll start at the upper right corner of the board, near R9. We’ll skip the larger switches, knobs, and jacks for now and install those at the end.

Install R16, 470 ohm resistor (yellow-violet-brown).

Moving to your left, install R6, 47k ohms (yellow-violet-orange).

Install R5, another 47k ohm resistor (yellow-violet-orange).

Here at the shop we typically insert a number of parts through the

board, bend the leads out so that they stay put, and solder a group of parts all at one time. Now you don’t want a forest of leads to have to work through but 5 - 10 part groups seem to work well.

Install C22, the first of many 10uF electrolytic capacitors. These parts have a polarity and must be installed correctly in order to function. The PC board silkscreen shows a “+” sign next to one of the holes for the part. This corresponds to the longer of the two leads, the positive. The negative

SHA2 • 11

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Ramsey Electronics SHA2 manual Assembly Steps
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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.