ELECRAFT K 2 manuály

Elecraft K 2 Uživatelský manuál (159 strany)

Značka: Elecraft | Kategorie: Komponenty podvozku | Velikost: 1.00 MB |

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ELECRAFT K2

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Table of Contents

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1. Introduction

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2. Specifications

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Transmitter

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Receiver

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Keying modes Iambic A and B

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3. Preparation for Assembly

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Unpacking

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Assembly Notes

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Identifying Capacitors

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Color Code

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Resistor Color Code

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Integrated Circuits and ESD

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4. Control Board

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Assembly

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Bend pins

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Straight

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Visual Inspection

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Resistance Checks

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5. Front Panel Board

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__ R14, 100k (BRN-BLK-YEL)

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Polarizing

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Square Keycap

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Gray keycaps

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Uninstalled Components

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Front Panel Final Assembly

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Tighten both set screws

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6. RF Board

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Assembly, Part I

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__ R113, 82 (GRY-RED-BLK)

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Front edge of

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PC Board

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Left Side Panel

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Long-handled

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Alignment and Test, Part 1

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Optical Encoder Test

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Relay Test

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Menu Tutorial

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S-Meter Alignment

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Bargraph Current Test

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Assembly, Part II

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Remove insulation

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Alignment and Test, Part II

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BFO Test

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BFO Alignment

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VFO Linearization

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Assembly, Part III

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Alignment and Test, Part III

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VFO Linearization (All Bands)

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Transmitter Alignment

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7. Final Assembly

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Hole Covers

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Finishing Touches

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8. Operation

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K2 REAR PANEL

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Connections

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Controls and Display

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Potentiometers

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Switch Functions

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Numeric Keypad

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Using the Menu

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Calibration Functions

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Filter Settings (CAL FIL)

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VFO Linearization (CAL PLL)

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S-meter Zero Level (CAL S LO)

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Basic K2 Operation

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Tuning Rates and VFO Lock

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Mode Selection

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Filter Selection

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Power Control

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VFO Selection

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Split and Reverse Operation

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CW Operation

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Keying Device Selection

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Basic CW Setup

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The SPOT Switch

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Using the Internal Keyer

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Message Memories

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CW Reverse

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SSB Operation

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Advanced Operating Features

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AGC On/Off Control

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9. Modifications

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10.Theory of Operation

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Microcontroller (MCU)

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Latching Relays

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Front Panel

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Control Board

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RF Board

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Receiver (100-149)

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Transmitter (150-199)

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12. Internal Options

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©1999 Elecraft

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RF Output Detector

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K2 RF Board

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Elecraft

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1 6 0 m /

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R X A n t

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Power Amplifier (PA)

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Pre-Driver

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4.915MHz

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