Ramsey Electronics BS1 Manuál s instrukcemi stáhnout pdf (Strana 4)

SG7• 4

PLEASE, PLEASE READ THIS!

THANK YOU for purchasing the SG7 Speedy Radar Gun. This is a kit project

that we're especially proud of. We've packed a lot of value into it, and we

know you have paid good money for it and that you sure do expect it to work.

Speedy will be a very satisfying project for you - IF you are willing to follow our

directions carefully. This is definitely not one of those kits where you can

expect to just put some parts on a board and tinker as you go along.

Mechanical details are just as critical as correct component soldering.

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There are several reasons why following directions are so

important for this kit. Of course, you and I both want it to "work". In

addition:

•

Both you and I want the Display PC board to fit correctly in its

custom-made case. For example, if you jump ahead and install the

electrolytic capacitors in the conventional way, the board will NOT

fit in the case.

•

Both you and I want Speedy to LOOK GOOD when it's finished.

•

Both you and I want it to be mechanically durable, so it can be

USED reliably when and where you want to use it.

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Please realize that physical and mechanical details are MUCH

more critical at 2600 MHz than in frequency ranges more familiar to

most electronics and radio experimenters!

Our directions are designed to help you accomplish all these goals. Please

follow them carefully!

BUILDING THE SG7 - A LOOK AT THE WORK TO DO:

Since there are a variety of steps in completing your Personal Radar, lets look

over the big picture briefly. An operational SG7 consists of three basic

devices: the LED Speed Readout unit, the Microwave Oscillator-Antenna unit,

and a convenient 12 volt power pack (200mA or more) provided by you.

The SG7A Speed Readout unit involves fairly conventional PC board

soldering. Following our directions is VERY important for getting a good fit of

the board into its custom case so that it fits correctly.

The SG7B Microwave Oscillator-Antenna PC board involves a mix of both

thru-the-board leads and surface soldering typical of UHF and microwave

designs. Even though it's not a quickie "stick-in-the-parts" job, it goes together

more easily than you might think, and we'll be with you every step of the way.

A pre-cut piece of real, honest, shiny tin is supplied for use in forming a shield

and casing around the component side of the Microwave Oscillator board. It is

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