About LC Meter This is one of the most accurate and simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build y

Size: px
Start display at page:

Download "About LC Meter This is one of the most accurate and simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build y"

Transcription

1 Home Electronic Store Electronic Blog Electronic Schematics Tutorials Downloads Lin Very Accurate LC Meter based on PIC16F84A IC. LC Meter Part's List: 2x 1K 2x 6.8K 1x 47K 3x 100K 1x 10K POT 2x 10pF 1x 100pF 2x 1nF 2x 10uF 1x 78LM05 1x 16x1 LCD Display 1x PIC16F84A IC 1x LM311 IC 1x 4MHz Crystal 1x 82uH Inductor 1x 3V Reed Relay LC Meter's Technical Specifications: Voltage Supply: V Accuracy: 1% Zero Out Switch Automatic Ranging LC Meter's Inductance Measurement Ranges: - 10nH nH - 1uH uH - 1mH - 100mH LC Meter's Capacitance Measurement Ranges: - 0.1pF pF - 1nF - 900nF 1 of 10 09/09/08 14:52

2 About LC Meter This is one of the most accurate and simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build yourself. This LC Meter allows to measure incredibly small inductances starting from 10nH to 1000nH, 1uH to 1000uH, 1mH to 100mH and capacitance from 0.1pF up to 900nF. LC Meter's circuit uses an auto ranging system so that way you do not need to spend time selecting ranges manually. Another neat function is the "Zero Out" switch that will reset the initial inductance / capacitance, making sure that the final readings of the LC Meter are as accurate as possible. LC Meter Kit with Green Backlight LCD Display 2 of 10 09/09/08 14:52

3 How does LC Meter Work? To be able to determine the value of an unknown inductor / capacitor we can use the frequency formula given below. Note that there are three variables that we can work with; f, L and C (f represents a frequency, L inductance and C capacitance). If we know the values of the two variables we may calculate the value of the third variable. Lets say we want to determine the value of an unknown inductor with X inductance. We plug X inductance into the formula and we also use value of a known capacitor. Using this data we can calculate the frequency. Once we know the frequency we can use the power of the algebra and rewrite the above formula to solve for L (inductance). This time we will use the calculated frequency and a value of a known capacitor to calculate the inductance. Isn't this amazing? We just calculated the value of unknown inductor, and we may use the same technique to solve for the unknown capacitance and even frequency. Applying the Theory to LC Meter's Hardware Now let's use the above theory and apply it to electronics. The LC Meter uses a popular LM311 IC that that functions as a frequency generator and this is exactly what we need. If we want to calculate the value of an unknown inductor we use a known Ccal 1000pF capacitor and the value of an unknown inductor. LM311 will generate a frequency that we can measure with a frequency meter. Once we have this information we can use the frequency formula to calculate the inductance. The same thing can be done for calculating the value of a unknown capacitor. This time we don't know the value a capacitor so instead we use the value of a known inductor to calculate the frequency. Once we have that information we apply the formula to determine the capacitance. All this sounds great, however if we want to determine the value of a lot of inductors / capacitors then this may become a very time consuming process. Sure, we can write a computer program to do all these calculations, but what if we don't have 3 of 10 09/09/08 14:52

4 an access to a computer or a frequency meter? That's were PIC16F84A microchip comes handy. PIC16F84A is like a small computer that can execute HEX programs that are written using an assembly language. PIC16F84A is a very flexible microchip because it has PINs which can be configured as inputs and outputs. Besides that, PIC16F84A IC requires very minimal number of external components like 4MHz crystal / resonator and few resistors depending on what project we are building. Before we can use PIC16F84A microchip we have to program it with a HEX code which has to be sent from the computer. In the next step we use the frequency generated by LM311 IC and pass it on to PIC16F84A's PIN 17. We designate this PIN as an input, as well as all other PINs that are directly connected to switches and jumpers. User can use these inputs to tell the microchip to execute specified set of instructions or perform calculations. Once the microchip will calculate the unknown inductance or capacitance it will use PINs that are designated as outputs and pass the results on to the 16 character LCD display. LC Meter's Switches & Jumpers SW1 - Zero out the readings. SW2 - Capacitance / Inductance switch. J3 - turns on the backlight on LCD displays that have LED backlight. J1 - used by 16x2 two line character LCD displays. J2 - displays the initial frequency of the LM311 oscillator which should be around 550KHz. Character LCD Display Connections Most of the character LCD displays have 14 or 16 PINs. The displays that do have a backlight have 16 PINs and displays that do not have a backlight have 14 PINs. The PINs that are highlighted in green in the table below are the ones that PIC16F84A uses to pass the output information represented in bits (0/1). PIN Symbol Function States 1 VSS GND - 2 VDD VCC +5V + 3 VO Contrast Adjustment +/- 4 RS Register Select H/L 5 R/W Read / Write H/L 6 E Enable Signal H/L 7 DB0 Data Bit 0 H/L 8 DB1 Data Bit 1 H/L 9 DB2 Data Bit 2 H/L 10 DB3 Data Bit 3 H/L 11 DB4 Data Bit 4 H/L 12 DB5 Data Bit 5 H/L 13 DB6 Data Bit 6 H/L 14 DB7 Data Bit 7 H/L 15 LED Backlight VCC +5V + 16 LED Backlight GND - 4 of 10 09/09/08 14:52

5 CAUTION: The controller chip that is visible on the back of the LCD display can be damaged with the static energy. Make sure to ground yourself every time you hold it, and handle it by the edges and not the PINs. 16x1& 16x2 LCD modules with backlight (front) both LCDs can be used interchangeably LCD modules (back) 16x1 LCD with pcb standoffs and header pins LC Meter's Enclosure (4"x2.5"x1") LC Meter's Construction 5 of 10 09/09/08 14:52

6 6 of 10 09/09/08 14:52

7 Measuring 2pF Capacitor Measuring Inductance 7 of 10 09/09/08 14:52

8 40nH - small piece of magnet wire 80nH - 4 turns of magnet wire 90nH coil used in FM transmitter 280nH - 10 turns of magnet wire 500nH wire through choke 1uH VK choke small RF toroid, 5 turns medium toroid 8 of 10 09/09/08 14:52

9 365uH 100uH choke 1uH inductor 100uH inductor 2.2mH inductor 18mH inductor Final Recommendations 1nF Ccal is used as a calibration capacitor so make sure that you use a good quality mylar capacitor. Keep the cables between LM311 and the terminals as short as possible to keep the stray capacitance to minimum and ensure the highest accuracy. Also, you have to use a "5V reed relay" because the current passed from PIC16F84A is very small. Reed relays require very minimal amount of current to be switched. I also suggest that you use a 7805 IC to protect the LC Meter, in case you accidentally apply a higher voltage. PIC16F84A will be damaged if you apply voltage higher than 5.5V. 9 of 10 09/09/08 14:52

10 Where to get LC Meter parts or kit If you are building the above LC Meter and have trouble finding some of the components, we are distributing the following components and a kit in our Electronic Store. Electronics-DIY.com All Rights Reserved. 10 of 10 09/09/08 14:52

Microcontroller Based Inductance Capacitance Meter

Microcontroller Based Inductance Capacitance Meter Microcontroller Based Inductance Capacitance Meter MUDIT AGARWAL This is the Inductance / Capacitance Meters circuit. One can easily build this LC Meter measure inductances starting from mh to 00mH, µh

More information

2. Circuit diagram The overall functional diagram is:

2. Circuit diagram The overall functional diagram is: An LC meter in C By Juan H la Grange, ZS6SZ 1. Introduction This article and project is based on Digital LC Meter Version 2 by Phil Rice VK3BHR [https://sites.google.com/site/vk3bhr/home/index2-html] and

More information

Dual Band Filter Assembly Manual

Dual Band Filter Assembly Manual Dual Band Filter Assembly Manual 12 January 2018 Rev D Version Theory of Operation: The purpose of a Bandpass Filter is to filter out or reject all unwanted signals. The original KN-Q7A Receive Filter

More information

HF Amateur SSB Receiver

HF Amateur SSB Receiver HF Amateur SSB Receiver PCB Set for radio club project http://rhelectronics.net PCB for DIY HF Amateur SSB Receiver 20M The receiver is a simple syperheterodyne type with quartz crystal filter. The circuit

More information

Controlling DC Brush Motor using MD10B or MD30B. Version 1.2. Aug Cytron Technologies Sdn. Bhd.

Controlling DC Brush Motor using MD10B or MD30B. Version 1.2. Aug Cytron Technologies Sdn. Bhd. PR10 Controlling DC Brush Motor using MD10B or MD30B Version 1.2 Aug 2008 Cytron Technologies Sdn. Bhd. Information contained in this publication regarding device applications and the like is intended

More information

Applications Note RF Transmitter and Antenna Design Hints

Applications Note RF Transmitter and Antenna Design Hints This application note covers the TH7107,TH71071,TH71072,TH7108,TH71081,TH72011,TH72031,TH7204 Single Frequency Transmitters. These transmitters have different features and cover different bands but they

More information

ATV Modulator User Manual

ATV Modulator User Manual ATV Modulator User Manual FMTV Modulator by Grant ZL1WTT & Keith ZL1BQE 20 February 2004 Page 1 Display board layout The controller consists of a 2x 16 LCD display with three push buttons and a rotary

More information

MFJ-249B HF/VHF SWR ANALYZER

MFJ-249B HF/VHF SWR ANALYZER TABLE OF CONTENTS MFJ-249B... 2 Introduction... 2 Powering The MFJ-249B... 3 Battery Installation... 3 Alkaline Batteries... 3 NiCd Batteries... 4 Power Saving Mode... 4 Operation Of The MFJ-249B...5 SWR

More information

HT-1A Dual Band CW QRP Transceiver. Kit Building Instructions

HT-1A Dual Band CW QRP Transceiver. Kit Building Instructions HT-A Dual Band CW QRP Transceiver Kit Building Instructions Rev B, July 8, 08 Designed by BD4RG Exclusively distributed by CRKITS.COM and its worldwide distributors Join the group http://groups.io/g/crkits

More information

BEST BMET CBET STUDY GUIDE MODULE ONE

BEST BMET CBET STUDY GUIDE MODULE ONE BEST BMET CBET STUDY GUIDE MODULE ONE 1 OCTOBER, 2008 1. The phase relation for pure capacitance is a. current leads voltage by 90 degrees b. current leads voltage by 180 degrees c. current lags voltage

More information

Application Note Receivers MLX71120/21 With LNA1-SAW-LNA2 configuration

Application Note Receivers MLX71120/21 With LNA1-SAW-LNA2 configuration Designing with MLX71120 and MLX71121 receivers using a SAW filter between LNA1 and LNA2 Scope Many receiver applications, especially those for automotive keyless entry systems require good sensitivity

More information

HAMTRONICS R144 VHF FM RECEIVER, REV. 4/94: INSTALLATION AND MAINTENANCE

HAMTRONICS R144 VHF FM RECEIVER, REV. 4/94: INSTALLATION AND MAINTENANCE HAMTRONICS R144 VHF FM RECEIVER, REV. 4/94: INSTALLATION AND MAINTENANCE FUNCTIONAL DESCRIPTION. The R144 is a premium commercial grade single-channel vhf fm receiver. It features a helical resonator front

More information

LCFesR 4.5 precise, wide range measuring unit

LCFesR 4.5 precise, wide range measuring unit LCFesR 4.5 precise, wide range measuring unit LCFesR 4.5 unit is a precise, wide range LC / LCF / LCR / ESR meter (tester / checker) that measures inductance (L), capacity (C), frequency (F), small resistance

More information

Yana Dongles Tom Berger K1TRB (c)2016 v171227

Yana Dongles Tom Berger K1TRB (c)2016 v171227 Yana Dongles Tom Berger K1TRB (c)2016 v171227 These notes elaborate some items described in the Build notes, and add some more dongles enhancing Yana. Every effort has been exerted to save on the cost

More information

HAMTRONICS R451 UHF FM RECEIVER: INSTALLATION, OPERATION, & MAINTENANCE

HAMTRONICS R451 UHF FM RECEIVER: INSTALLATION, OPERATION, & MAINTENANCE HAMTRONICS R451 UHF FM RECEIVER: INSTALLATION, OPERATION, & MAINTENANCE FUNCTIONAL DESCRIPTION. The R451 is a premium, commercial- grade single-channel uhf fm receiver. It features a GaAs FET rf amplifier

More information

Build this Direct Digital Synthesizer "Development Kit" By: Diz Gentzow, W8DIZ

Build this Direct Digital Synthesizer Development Kit By: Diz Gentzow, W8DIZ Build this Direct Digital Synthesizer "Development Kit" By: Diz Gentzow, W8DIZ A great tutorial for adding a keypad to the DDS Kit by Bruce, W8BH This manual has been prepared to be read directly on screen.

More information

(THEORY) (ANALOG) (DIGITAL) (SOFTWARE) (HOME) Matjaz Vidmar, S53MV (ex YU3UMV, YT3MV)

(THEORY) (ANALOG) (DIGITAL) (SOFTWARE) (HOME) Matjaz Vidmar, S53MV (ex YU3UMV, YT3MV) 1 of 25 3.12.2010 10:07 (THEORY) (ANALOG) (DIGITAL) (SOFTWARE) (HOME) Matjaz Vidmar, S53MV (ex YU3UMV, YT3MV) 4. Homemade receiver modules for GPS & GLONASS 4.10. GPS/GLONASS DSP hardware The theory of

More information

Understanding, measuring, and reducing output noise in DC/DC switching regulators

Understanding, measuring, and reducing output noise in DC/DC switching regulators Understanding, measuring, and reducing output noise in DC/DC switching regulators Practical tips for output noise reduction Katelyn Wiggenhorn, Applications Engineer, Buck Switching Regulators Robert Blattner,

More information

DTMF decoder kit with 8 outputs and Morse transpond. 8 output DTMF decoder with 4 on board BT47 style 12V relays and 4 open collector outputs

DTMF decoder kit with 8 outputs and Morse transpond. 8 output DTMF decoder with 4 on board BT47 style 12V relays and 4 open collector outputs DJS Electronics Ltd cstech.co.uk DTMF decoder kit with 8 outputs and Morse transpond Features 8 output DTMF decoder with 4 on board BT47 style 12V relays and 4 open collector outputs Each output can be

More information

FM RADIO KIT ESSENTIAL INFORMATION. Version 2.0 GET IN TUNE WITH THIS

FM RADIO KIT ESSENTIAL INFORMATION. Version 2.0 GET IN TUNE WITH THIS ESSENTIAL INFORMATION BUILD INSTRUCTIONS CHECKING YOUR PCB & FAULT-FINDING MECHANICAL DETAILS HOW THE KIT WORKS GET IN TUNE WITH THIS FM RADIO KIT Version 2.0 Build Instructions Before you start, take

More information

S Pixie QRP Kit User Manual. Welcome to visit the home page to obtain the latest data. 1 / 24. Revision V160515

S Pixie QRP Kit User Manual. Welcome to visit the home page  to obtain the latest data. 1 / 24. Revision V160515 S-Pixie QRP Kit User Manual Revision V160515 Welcome to visit the home page www.lxqqfy.com to obtain the latest data. 1 / 24 1. Introduction PIXIE is a very small volume of simple 40 meter band micro-power

More information

S-Pixie QRP Kit. Student Manual. Revision V 1-0

S-Pixie QRP Kit. Student Manual. Revision V 1-0 S-Pixie QRP Kit Student Manual Revision V 1-0 Introduction The Pixie 2 is a small, versatile radio transceiver that is very popular with QRP (low power) amateur radio operators the world over. It reflects

More information

Apr - 12, 05. Most recent REV DATE : page #

Apr - 12, 05. Most recent REV DATE : page # Customer : P.O. number : Dewar number : Job Order number : Quote number : Components : GUMP Preamp, configured for 2 channels, includes external Analog, Digital and Power Supply cables Most recent REV

More information

K8039 DMX CONTROLLED POWER DIMMER. Control a lamp or group of lamps trough a DMX signal. Suitable for resistive and mains voltage halogen lighting.

K8039 DMX CONTROLLED POWER DIMMER. Control a lamp or group of lamps trough a DMX signal. Suitable for resistive and mains voltage halogen lighting. DMX CONTROLLED POWER DIMMER K8039 Control a lamp or group of lamps trough a DMX signal. Suitable for resistive and mains voltage halogen lighting. Specifications control source: DMX-512, 3 pin XLR socket

More information

Handy dandy little circuit #17 #17

Handy dandy little circuit #17 #17 Handy dandy little circuit #17 #17 Download # 17 in PDF There are a lot of alarm systems on the market but you might be inclined to build your own. This little project can be put together using inexpensive

More information

FC3 Project Info: PIC18F /500MHZ Frequency Counter & RF Meter. This project is developed for Amateur Radio Community by:

FC3 Project Info: PIC18F /500MHZ Frequency Counter & RF Meter. This project is developed for Amateur Radio Community by: Fox Delta Amateur Radio Projects & Kits FC3-0915 FC3 Project Info: PIC18F4550 50/500MHZ Frequency Counter & RF Meter This project is developed for Amateur Radio Community by: Antonio Alfinito / I2TZK Dinesh

More information

EXPERIMENT #2 CARRIER OSCILLATOR

EXPERIMENT #2 CARRIER OSCILLATOR EXPERIMENT #2 CARRIER OSCILLATOR INTRODUCTION: The oscillator is usually the first stage of any transmitter. Its job is to create a radio-frequency carrier that can be amplified and modulated before being

More information

Stand Alone VXO (SAVXO) Assembly Manual Manual Version 1.0B_

Stand Alone VXO (SAVXO) Assembly Manual Manual Version 1.0B_ Stand Alone VXO (SAVXO) Assembly Manual Manual Version.0B_0-6-0 Designed by: Jim Kortge, K8IQY Kitted & Sold by: 4 State QRP Group Copyright: 0 Forward Thank you for purchasing a 4 State QRP Group Stand

More information

Contactless card IC 2802-A, 6602(C)

Contactless card IC 2802-A, 6602(C) IC for Contactless Identification Features - 64-bit single time programmable memory array - on chip resonance capacitor - on chip supply buffer capacitor - on chip voltage limiter - full wave rectifier

More information

The Guitar Chord Learning System

The Guitar Chord Learning System The Guitar Chord Learning System Calvin A. Sessions Hardware Description April 19, 2005 Western Washington University Electronics Engineering Technology ETEC 474, Professor Morton INTRODUCTION The Guitar

More information

AltiumLive 2017: Component selection for EMC

AltiumLive 2017: Component selection for EMC AltiumLive 2017: Component selection for EMC Martin O Hara Victory Lighting Ltd Munich, 24-25 October 2017 Component Selection Passives resistors, capacitors and inductors Discrete diodes, bipolar transistors,

More information

Radio Frequency Electronics

Radio Frequency Electronics Radio Frequency Electronics Frederick Emmons Terman Transformers Masters degree from Stanford and Ph.D. from MIT Later a professor at Stanford His students include William Hewlett and David Packard Wrote

More information

Assembly Manual for VFO Board 2 August 2018

Assembly Manual for VFO Board 2 August 2018 Assembly Manual for VFO Board 2 August 2018 Parts list (Preliminary) Arduino 1 Arduino Pre-programmed 1 Faceplate Assorted Header Pins Full Board Rev A 10 104 capacitors 1 Rotary encode with switch 1 5-volt

More information

EE301 ELECTRONIC CIRCUITS CHAPTER 2 : OSCILLATORS. Lecturer : Engr. Muhammad Muizz Bin Mohd Nawawi

EE301 ELECTRONIC CIRCUITS CHAPTER 2 : OSCILLATORS. Lecturer : Engr. Muhammad Muizz Bin Mohd Nawawi EE301 ELECTRONIC CIRCUITS CHAPTER 2 : OSCILLATORS Lecturer : Engr. Muhammad Muizz Bin Mohd Nawawi 2.1 INTRODUCTION An electronic circuit which is designed to generate a periodic waveform continuously at

More information

ABC V1.0 ASSEMBLY IMPORTANT!

ABC V1.0 ASSEMBLY IMPORTANT! ABC V1.0 ASSEMBLY Before starting this kit, prepare the following tools: Soldering iron (15-20W will do), flush cutters, no.2 hex screwdriver or allen key and phillips screwdriver. Also briefly go through

More information

Bitx Version 3 Linear Amplifier Assembly

Bitx Version 3 Linear Amplifier Assembly Bitx Version 3 Linear Amplifier Assembly The power supply section has 2 options. 1 - AC input and a higher voltage on the IRF510 and +12 volts to the bitx. 2 - +12 volts applied to both the final and the

More information

ALX-SSB 5 Band Filter Assembly Manual 19 November 2018

ALX-SSB 5 Band Filter Assembly Manual 19 November 2018 ALX-SSB 5 Band Filter Assembly Manual 19 November 2018 Contents Theory of Operation:... 1 Figure 1... 2 Parts Included:... 4 Board Overview:... 5 Figure 2... 5 Figure 3... 5 Board Assembly:... 6 Cable

More information

Low Pass Filter (rev 5) for single and 2-Pallet HF Amplifiers The filter sections on this board differ from the web article, and offer some

Low Pass Filter (rev 5) for single and 2-Pallet HF Amplifiers The filter sections on this board differ from the web article, and offer some The filter sections on this board differ from the web article, and offer some improvement in performance, including raising the maximum power handling capacity. The most significant changes were to the

More information

Laboratory PSU. Applications *Laboratories and test benches * Powering mobile radio equipment. * Precision charging of batteries

Laboratory PSU. Applications *Laboratories and test benches * Powering mobile radio equipment. * Precision charging of batteries 0A. OV Laboratory PSU * Output voltage variable from 0 to +0V (Fine adjustment over V) * Variable current limit from 0 to OA * LED current limit indicator * Output short circuit protected Maximum 0. 5V

More information

Chapter 2. The Fundamentals of Electronics: A Review

Chapter 2. The Fundamentals of Electronics: A Review Chapter 2 The Fundamentals of Electronics: A Review Topics Covered 2-1: Gain, Attenuation, and Decibels 2-2: Tuned Circuits 2-3: Filters 2-4: Fourier Theory 2-1: Gain, Attenuation, and Decibels Most circuits

More information

Laboration: Frequency measurements and PWM DC motor. Embedded Electronics IE1206

Laboration: Frequency measurements and PWM DC motor. Embedded Electronics IE1206 Laboration: Frequency measurements and PWM DC motor. Embedded Electronics IE1206 Attention! To access the laboratory experiment you must have: booked a lab time in the reservation system (Daisy). completed

More information

Ten Tec DDS Board Assembly Procedure

Ten Tec DDS Board Assembly Procedure 05 May 2014 Ten Tec DDS Board Assembly Procedure You will find a photo of a completed board at the end of these instructions. Refer it whenever clarification is required. 1. AD9835 Attachment If you purchased

More information

PICee Development System

PICee Development System PICee Development System a PICF-based single-board computer by Reinhardt Weber, DCZM weber.reinhardt@t-online.de This single-board computer, using the popular low-cost PICF microcontroller, has been developed

More information

HAMTRONICS R901 FM RECEIVER INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS

HAMTRONICS R901 FM RECEIVER INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS HAMTRONICS R901 FM RECEIVER INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS GENERAL INFORMATION. The R901 is a commercial grade single-channel fm receiver for the 902-928 MHz amateur band and the

More information

12kHz LIF Converter V2.43 9Mhz version

12kHz LIF Converter V2.43 9Mhz version 12kHz LIF Converter V2.43 9Mhz version Please Note: This document supersedes all previously released documents and drawings on the LIF subject. This is the latest and most up-to-date document at this time.

More information

The ROSE 80 CW Transceiver (Part 1 of 3)

The ROSE 80 CW Transceiver (Part 1 of 3) Build a 5 watt, 80 meter QRP CW Transceiver!!! Page 1 of 10 The ROSE 80 CW Transceiver (Part 1 of 3) Build a 5 watt, 80 meter QRP CW Transceiver!!! (Designed by N1HFX) A great deal of interest has been

More information

CORE SERIES DATASHEET Mar 01, 2005

CORE SERIES DATASHEET Mar 01, 2005 CORE SERIES DATASHEET Mar 01, 2005 CORE-2 /CORE-12 /CORE-20 The CORE2. CORE12 and CORE20 are similar to the obsolete CORE0, CORE10 and CORE15 MK(ii) series devices, but they have extra pins that allow

More information

555 Astable Kit MitchElectronics 2018

555 Astable Kit MitchElectronics 2018 555 Astable Kit MitchElectronics 2018 www.mitchelectronics.co.uk CONTENTS Introduction 3 Schematic 3 How It Works 4 Materials 6 Construction 7 Important Information 8 Page 2 INTRODUCTION The 555 timer

More information

G11+ GSDR quick start assembly manual

G11+ GSDR quick start assembly manual G11+ GSDR quick start assembly manual January 23, 2012 Ver 1.2 Tasa, YU1LM and Nick, VK2DX Before the assembly: Install GSDR software for G11 from http://genesisradio.com.au/gsdr/new. Download both install

More information

SoftRock v6.0 Builder s Notes. May 22, 2006

SoftRock v6.0 Builder s Notes. May 22, 2006 SoftRock v6.0 Builder s Notes May 22, 2006 Be sure to use a grounded tip soldering iron in building the v6.0 SoftRock circuit board. The soldering iron needs to have a small tip, (0.05-0.1 inch diameter),

More information

SoftRock v6.0 Builder s Notes. April 6, 2006

SoftRock v6.0 Builder s Notes. April 6, 2006 SoftRock v6.0 Builder s Notes April 6, 006 Be sure to use a grounded tip soldering iron in building the v6.0 SoftRock circuit board. The soldering iron needs to have a small tip, (0.05-0. inch diameter),

More information

KN-Q10 Assembly Manual

KN-Q10 Assembly Manual KN-Q10 Assembly Manual Translated by Adam Rong, BD6CR/4 with permission from Ke Shi, BA6BF Edited by Stephen, VK2RH Revision B, Oct 14, 2010 Thank you for purchasing the KN-Q10 4 Band SSB/CW Dual Mode

More information

RS cm transceiver

RS cm transceiver RS9044 70cm transceiver ATF-2 Base-unit Modification Dennis Koller (PA4DEN) Schoollaan 2 8392 NM Boyl 0622379901 / 0561421557 1 The receiver Lets start with the receiver, this is the most difficult part.

More information

S-RockMite QRP Kit User Manual. Welcome to visit the home page to obtain the latest data. 1 / 23. Revision V161101

S-RockMite QRP Kit User Manual. Welcome to visit the home page  to obtain the latest data. 1 / 23. Revision V161101 S-RockMite QRP Kit User Manual Revision V161101 Welcome to visit the home page www.lxqqfy.com to obtain the latest data. 1 / 23 1. Introduction This is a very small volume of simple 40 meter band micro-power

More information

Homebrew and Experimenters Group HF Inductance Bridge (Compiled by VK2TOX)

Homebrew and Experimenters Group HF Inductance Bridge (Compiled by VK2TOX) Homebrew and Experimenters Group HF Inductance Bridge (Compiled by VK2TOX) There are a number of ways to measure inductances used in construction of RF equipment. One of the most versatile ways is with

More information

Evaluates: MAX2686/MAX2688. MAX2686/MAX2688 Evaluation Kit. General Description. Quick Start. Features. Required Equipment

Evaluates: MAX2686/MAX2688. MAX2686/MAX2688 Evaluation Kit. General Description. Quick Start. Features. Required Equipment MAX2686/MAX2688 Evaluation Kit Evaluates: MAX2686/MAX2688 General Description The MAX2686/MAX2688 evaluation kits (EV kits) simplify the evaluation of the MAX2686/MAX2688 GPS/ GNSS low-noise amplifiers

More information

N3ZI Kits General Coverage Receiver, Assembly & Operations Manual (For Jun 2011 PCB ) Version 3.33, Jan 2012

N3ZI Kits General Coverage Receiver, Assembly & Operations Manual (For Jun 2011 PCB ) Version 3.33, Jan 2012 N3ZI Kits General Coverage Receiver, Assembly & Operations Manual (For Jun 2011 PCB ) Version 3.33, Jan 2012 Thank you for purchasing my general coverage receiver kit. You can use the photo above as a

More information

The Amazing MFJ 269 Author Jack Tiley AD7FO

The Amazing MFJ 269 Author Jack Tiley AD7FO The Amazing MFJ 269 Author Jack Tiley AD7FO ARRL Certified Emcomm and license class Instructor, Volunteer Examiner, EWA Technical Coordinator and President of the Inland Empire VHF Club What Can be Measured?

More information

Constructional Project

Constructional Project Cx/Lx S C L L C C RLY 0 F 0 F COMP 47k +5V Fout CAL C/L HOW IT WORKS: THE EQUATIONS (A) In calibration mode () With just L and C: F =. L.C () With C added to C: F =. L.(C+C) (3) From () and (), we can

More information

RF9986. Micro-Cell PCS Base Stations Portable Battery Powered Equipment

RF9986. Micro-Cell PCS Base Stations Portable Battery Powered Equipment RF996 CDMA/TDMA/DCS900 PCS Systems PHS 500/WLAN 2400 Systems General Purpose Down Converter Micro-Cell PCS Base Stations Portable Battery Powered Equipment The RF996 is a monolithic integrated receiver

More information

DEM Part Number L144-28INTCK 144 MHz Transverter Kit and complete kit

DEM Part Number L144-28INTCK 144 MHz Transverter Kit and complete kit DEM Part Number L144-28INTCK 144 MHz Transverter Kit and complete kit Power Out: Noise Figure and Gain: DC Power Requirement: 50 mw linear minimum 3.5 db NF nominal, 5 dbg maximum 12-15.5 VDC, 13.8 nominal

More information

CYSR805 Datasheet. General Description: MHz RF receiver. Application. Package drawing. Features CYSR805

CYSR805 Datasheet. General Description: MHz RF receiver. Application. Package drawing. Features CYSR805 Datasheet 250-450MHz RF receiver CYSR805 General Description: CYSR805 is a single chip Super Regenerative Receiver(SRR) RF IC. CYSR805 is composed of an low noise pre-amplifier, the super regenerative

More information

DATA SHEET CORE ID-SERIES COMPONENT READERS (ID2, ID2RW, ID12, ID12RW, ID20, ID20RW)

DATA SHEET CORE ID-SERIES COMPONENT READERS (ID2, ID2RW, ID12, ID12RW, ID20, ID20RW) DATA SHEET CORE ID-SERIES COMPONENT READERS (ID2, ID2RW, ID12, ID12RW, ID20, ID20RW) Overview The CORE ID2, ID12 and ID20 readers are a series of component style, low frequency RFID readers designed for

More information

KS58015 APPLICATION NOTE

KS58015 APPLICATION NOTE APPLICATION NOTE 98.9.23 Prepared by Y.S Park ( Law@sec.samsung.co.kr ) ANALOG LSI DIVISION 1 DTMF DIALER WITH MICOM CAUTIONS FOR DESIGNING OSCILLATION CIRCUITS It is becoming more common to configure

More information

Page 1 of IR Port 5 External power port 6 Calibration button port 7 DUT + jack 8 DUT - jack 9 Shielding grounding jack

Page 1 of IR Port 5 External power port 6 Calibration button port 7 DUT + jack 8 DUT - jack 9 Shielding grounding jack 1. General instructions: Thank you for purchasing a MS5308 LCR digital bridge meter. The MS5308 LCR digital bridge meter is a professional instrument for measuring inductance, capacitance and resistance.

More information

QUASAR PROJECT KIT # /24 HOUR GIANT CLOCK

QUASAR PROJECT KIT # /24 HOUR GIANT CLOCK This project was originally published in the electronics magazine, Silicon Chip, a few years ago. It is issued here as a kit with permission. Some modifications to the original published circuit and software

More information

MFJ-836H SWR/Wattmeter and RF Ammeter

MFJ-836H SWR/Wattmeter and RF Ammeter Introduction MFJ8H SWR/Wattmeter and RF Ammeter The MFJ8H is an allinone true peak reading SWR/Wattmeter with a built in RF Ammeter designed to operate on.80 MHz. The SWR/Wattmeter uses our TrueActive

More information

DDS VFO 2 CONSTRUCTION MANUAL. DDS VFO 2 Construction Manual Issue 1 Page 1

DDS VFO 2 CONSTRUCTION MANUAL. DDS VFO 2 Construction Manual Issue 1 Page 1 DDS VFO 2 CONSTRUCTION MANUAL DDS VFO 2 Construction Manual Issue 1 Page 1 Important Please read before starting assembly STATIC PRECAUTION The DDS VFO kit contains the following components which can be

More information

An Easy-To-Build VFO

An Easy-To-Build VFO An Easy-To-Build VFO By Lewis G. McCoy, W1ICP A VFO can he substituted in place of crystals and will permit the amateur to change his frequency to any point in the 80 or 40-meter bands. In other words,

More information

A Walk Through the MSA Software Vector Network Analyzer Transmission Mode 12/18/09

A Walk Through the MSA Software Vector Network Analyzer Transmission Mode 12/18/09 A Walk Through the MSA Software Vector Network Analyzer Transmission Mode 12/18/09 This document is intended to familiarize you with the basic features of the MSA and its software, operating as a Vector

More information

Blue Point Engineering

Blue Point Engineering DMX Data Analyzer Board nstruction Overview DMX Analyzer - Tester PC Board Design your own enclosure with an analyzer / tester display or add to your existing equipment or system. The DMX Analyzer is a

More information

U2270B Antenna Design Hints

U2270B Antenna Design Hints U227B Antenna Design Hints General Information The reader antenna is a series resonance circuit consisting of an inductor, a capacitor and a resistor (see figure ). Driver C R R R L R Overall resistance

More information

INTO THE UNKNOWN Build Document last updated may 2016 Version

INTO THE UNKNOWN Build Document last updated may 2016 Version INTO THE UNKNOWN Build Document last updated may 2016 Version 1.0 2015 'Into the Unknown Guitar Synthesizer Deluxe' is a CMOS based fuzz centered around the CD4046 PLL (phase locked loop) chip and a CD4015

More information

HAMRADIOINDIA. Volume

HAMRADIOINDIA. Volume Volume HAMRADIOINDIA Direct Digital Synthesizer for Amateur Bands DDS VFO for Amateur Bands HAMRADIOINDIA contact@hamradioindia.org www.hamradioindia.org Chapter Direct Digital Synthesizer VFO for Amateur

More information

Assembly Manual V1R2B-Rev1.0D

Assembly Manual V1R2B-Rev1.0D Assembly Manual V1R2B-Rev1.0D for 4 State QRP MagicBox - Solid State Transmit/Receive System Designed by: Jim Kortge, K8IQY Copyright 2009-2012 - All rights reserved This system is the result of some brainstorming

More information

16 Bit Micro Experimenter Assembly and Check out Instructions

16 Bit Micro Experimenter Assembly and Check out Instructions 16 Bit Micro Experimenter Assembly and Check out Instructions The kit you purchased that includes PCB, schematic, complete parts list and these assembly instructions. A top picture of the complete assembly

More information

NEW DESIGN***DEM Part Number FRS***NEW DESIGN Low power 144 MHz Transverter for the Flex Radio System SDR-1000 Operating Specifications:

NEW DESIGN***DEM Part Number FRS***NEW DESIGN Low power 144 MHz Transverter for the Flex Radio System SDR-1000 Operating Specifications: NEW DESIGN***DEM Part Number 144-28FRS***NEW DESIGN Low power 144 MHz Transverter for the Flex Radio System SDR-1000 Operating Specifications: Operating Voltage: 12.0-15.5 VDC, 13.8 nominal Current Drain:

More information

The 15 meter section was moved

The 15 meter section was moved After 2 years or so making various adjustments to the original LPF filter configuration, and noting some of the changes which could be made to the board to make it easier to construct, tune, and reconfigure

More information

A 40m Direct Conversion Receiver project to upgrade from ZR to ZS

A 40m Direct Conversion Receiver project to upgrade from ZR to ZS A 40m Direct Conversion Receiver project to upgrade from ZR to ZS Hannes Coetzee, ZS6BZP, B.Eng Elektronic (Pretoria) A simple receiver with a low component count is described for the 40m Amateur band.

More information

The Skiidometer. Hardware Description By: Adam Lee ; Etec474; Prof. Morton; WWU

The Skiidometer. Hardware Description By: Adam Lee ; Etec474; Prof. Morton; WWU The Skiidometer Hardware Description By: Adam Lee 04.26.2003; Etec474; Prof. Morton; WWU General Description The Skiidometer is a portable meter which serves as a digital companion on the ski slopes. By

More information

Beta-test ED1 PCB installed in I0CG s K1

Beta-test ED1 PCB installed in I0CG s K1 K1 SSB Modification (Ed.2) This description provides the receiver (RX) modifications, assembly, alignment and operation as a first step. In a second step you can add the remaining transmitter (TX) modifications,

More information

I-TECH INDUCTIVE TECHNOLOGIES, INC.

I-TECH INDUCTIVE TECHNOLOGIES, INC. INDUCTIVE TECHNOLOGIES, INC. n Toroidal and Pot Core Inductors n Pot Core Flyback Transformers n Drum Core Power Inductors n Surface Mount Power Inductors n Current Sense Transformers n T1/CEPT/ISDN Primary

More information

AVL-10000T AUDIO VIDEO LINK TRANSMITTER TECHNICAL MANUAL

AVL-10000T AUDIO VIDEO LINK TRANSMITTER TECHNICAL MANUAL AVL-10000T AUDIO VIDEO LINK TRANSMITTER TECHNICAL MANUAL Document : AVL-10000T Version: 1.00 Author: Henry S Date: 25 July 2008 This module contains protection circuitry to guard against damage due to

More information

Stereo 3.7W Class D Audio Amplifier

Stereo 3.7W Class D Audio Amplifier Stereo 3.7W Class D Audio Amplifier Created by Bill Earl Last updated on 2014-10-28 10:45:16 AM EDT Guide Contents Guide Contents Overview Specifications: What is a Class D Amplifier? Other Audio amps

More information

Princeton Technology Corp.

Princeton Technology Corp. DESCRIPTION is an electronic volume controller IC utilizing CMOS Technology specially designed for use on audio equipments. It has two () built-in channels making it ideally suitable for mono and stereo

More information

Breadboard Arduino Compatible Assembly Guide

Breadboard Arduino Compatible Assembly Guide (BBAC) breadboard arduino compatible Breadboard Arduino Compatible Assembly Guide (BBAC) A Few Words ABOUT THIS KIT The overall goal of this kit is fun. Beyond this, the aim is to get you comfortable using

More information

Evaluates: MAX V Output-Voltage Application. MAX17546EVKITB# Evaluation Kit. Quick Start. General Description. Features. Recommended Equipment

Evaluates: MAX V Output-Voltage Application. MAX17546EVKITB# Evaluation Kit. Quick Start. General Description. Features. Recommended Equipment Click here for production status of specific part numbers. MAX7546EVKITB# Evaluation Kit Evaluates: MAX7546 General Description The MAX7546 5V output evaluation kit (EV kit) provides a proven design to

More information

Eight channel remote relay card. Total solder points: 277 Difficulty level: beginner advanced K8056 ILLUSTRATED ASSEMBLY MANUAL

Eight channel remote relay card. Total solder points: 277 Difficulty level: beginner advanced K8056 ILLUSTRATED ASSEMBLY MANUAL Eight channel remote relay card This relay card can be used in several ways : stand alone card, addressed by switches or open collector outputs or remote controlled through RS232. Total solder points:

More information

S Forty 9er QRP Kit User Manual. Welcome to visit the home page to obtain the latest data. 1 / 23. Revision V160604

S Forty 9er QRP Kit User Manual. Welcome to visit the home page  to obtain the latest data. 1 / 23. Revision V160604 S-Forty-9er QRP Kit User Manual Revision V60604 Welcome to visit the home page www.lxqqfy.com to obtain the latest data. / 3 . Introduction This is a very small volume of simple 40 meter band micro-power

More information

Application Note 5038

Application Note 5038 MGA-6P8 Buffer Amplifier for 10 MHz Application Application Note 038 Introduction The MGA-6P8 is a high isolation buffer amplifier based on Avago Technologies EPHEMT process. This application note discusses

More information

Description. This Clock Multiplier is the most cost-effective way to Input crystal frequency of 5-40 MHz

Description. This Clock Multiplier is the most cost-effective way to Input crystal frequency of 5-40 MHz PT7C4512 Features Description Zero ppm multiplication error This Clock Multiplier is the most cost-effective way to Input crystal frequency of 5-40 MHz generate a high quality, high frequency clock outputs

More information

GRID DIP METER DESIGN

GRID DIP METER DESIGN GRID DIP METER DESIGN BY G0CWA MAY 2013 This, my next offering of test equipment is an exceptionally useful item of test equipment with many uses, some are listed below. To coin a phrase given to me by

More information

S WAMING QRP Kit User Manual. Welcome to visit the home page to obtain the latest data. 1 / 23. Revision 2.1

S WAMING QRP Kit User Manual. Welcome to visit the home page   to obtain the latest data. 1 / 23. Revision 2.1 S-WAMING QRP Kit User Manual Revision 2.1 Welcome to visit the home page www.lxqqfy.com to obtain the latest data. 1 / 23 1. Introduction This is a very small volume of simple 40 meter band micro-power

More information

Evaluates: MAX17546 in 5V Output-Voltage Application. MAX V Output Evaluation Kit. General Description. Quick Start.

Evaluates: MAX17546 in 5V Output-Voltage Application. MAX V Output Evaluation Kit. General Description. Quick Start. MAX7546 5V Output Evaluation Kit Evaluates: MAX7546 in 5V Output-Voltage Application General Description The MAX7546 5V output evaluation kit (EV kit) provides a proven design to evaluate the MAX7546 high-voltage,

More information

Demo Circuit DC550A Quick Start Guide.

Demo Circuit DC550A Quick Start Guide. May 12, 2004 Demo Circuit DC550A. Introduction Demo circuit DC550A demonstrates operation of the LT5514 IC, a DC-850MHz bandwidth open loop transconductance amplifier with high impedance open collector

More information

MFJ-834 RF Ammeter. Introduction. Uses

MFJ-834 RF Ammeter. Introduction. Uses MFJ-834 RF Ammeter Introduction Congratulations on purchasing the MFJ-834 RF Ammeter. The MFJ-834 is designed for measuring in-line RF feedline current on 1.8-30 MHz while having low interaction on the

More information

SP4403 Electroluminescent Lamp Driver

SP4403 Electroluminescent Lamp Driver SP4403 Electroluminescent Lamp Driver DESCRIPTION The SP4403 is a high voltage output DC-AC inverter specifically designed to drive electroluminescent lamps to backlight liquid crystal displays, keypads,

More information

Status Tone Generator

Status Tone Generator Eclipse Series RF Technology rfinfo@rftechnology.com.au January 004 Status Tone Generator Operation and Installation This manual is produced by RF technology Pty Ltd 0/8 Leighton Place, Hornsby 077, Australia

More information

Technical Bulletin A Versatile Pulse Tester Page 1 of 6

Technical Bulletin A Versatile Pulse Tester Page 1 of 6 Technical Bulletin A Versatile Pulse Tester Page 1 of 6 A Versatile Pulse Tester By G8MNY (BATC's CQTV No 195, Updated Oct 07) (8 Bit ASCII Graphics use code page 437 or 850) This tester based on ideas

More information

QUICK START GUIDE. LTC3562 I 2 C Quad Synchronous Step-Down DC/DC Regulators DESCRIPTION OPERATING PRINCIPLES

QUICK START GUIDE. LTC3562 I 2 C Quad Synchronous Step-Down DC/DC Regulators DESCRIPTION OPERATING PRINCIPLES DC1123 QUICK START GUIDE DESCRIPTION Demonstration circuit 1123 is a I 2 C Quad Synchronous Step-Down DC/DC Regulators featuring the LTC3562. The LTC3562 is a quad high efficiency monolithic synchronous

More information