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Martindale's Calculators On-Line Center: Part I:F-H - Ham Radio, Hi-Fi, Acoustics, Noise Exposure
MARTINDALE'S
CALCULATORS ON-LINE CENTER
PART I: F-H
HAM RADIO, HI-FI, ACOUSTICS, NOISE EXPOSURE(Calculators, Applets, Spreadsheets,and where Applicable includes: Courses, Manuals,Handbooks, Simulations, Animations, Videos, etc.)
US/Pacific: Friday, April 25, 2008
Sydney, Australia: Saturday, April 26, 2008
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Currently the Calculators On-Line Center containsover "23,465" Calculators
Ham Radio
Amateur & Commercial Radio Exams
Amateur Radio Design ~
Antenna ~
Call Sign ~
Distance & Location
Frequency & Wavelength ~
Grid Location
Acoustics, Noise, Sound, Speaker Design
Acoustics
Indoor & OutdoorAcoustics & Audio Systmem (Videos/Movies & Audio/Sound)
Music Acoustics & Vibrations ~
Room Acoustics, Eigenmodes & Reverberation Time
Noise & Noise Exposure
Sound(Absorption of Sound, Speed of Sound, Sound Pressure Level, etc.)
Microphone Design
Speaker Design
How a Speaker Works ~
Circuit, Box & Speaker Design ~
Crossover
Car Speaker Design ~
Horn Speaker Design ~
Loudspeaker Design
Calculators On-Line Center, Part I:F-H
Calculators On-Line Center Home Page
Ham Radio
Amateur & Commercial Radio Exams
AMATEUR RADIO CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
COMMERCIAL RADIO CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
FOR MORSE CODE CALCULATORS SEE
CALCULATOR CENTER PART I A-E: MORSE CODE
AMATEUR RADIO PRACTICE EXAM
AMATEUR RADIO LICENSING - Federal Communications Commission (FAA)
VERY VERY EXTENSIVE.
Amateur Radio Licensing
"...Operation of an amateur station requires an amateur operator license grant
from the FCC. Before receiving a license grant, you must pass an examination
administered by a team of volunteer examiners (VEs). The VEs determine the
license operator class for which you are qualified through the testing of
your skills and abilities in operating an amateur station..."
For more information see
Licensing - Universal Licensing System (ULS);
FCC Licensing Systems or the
Federal Communications Commission (FAA)
HAM RADIO ONLINE PRACTICE EXAMS - Michael H. Burkhardt
VERY VERY EXTENSIVE.
Ham Radio Practice Exams include:
"...Technician Class Practice Exam;
General Class Practice Exam;
Extra Class Practice Exam;
Customize a Practice Exam..."
For more information see
Michael Burkhardt's Ham Radio Shacketeria
HAM RADIO PRACTICE EXAMS - eHam.Net
VERY EXTENSIVE.
Ham Radio Practice Exams
"...You will be given a mock exam. Select your answer to each question
and then submit them to the eHam.net examiner robot. Your exam will be scored,
you will be given your exam results. You will also be shown the correct answers
to each question..."
Ham Radio Practice Exams include
"...Technician Ham Radio Practice Exam;
General Ham Radio Practice Exam;
Extra Ham Radio Practice Exam..."
For more information see the
eHam.Net
QRZ'S PRACTICE AMATEUR RADIO EXAMS - Fred Lloyd, QRZ
VERYK EXTENSIVE.
Amateur Radio Exams
"..This testing system serves as a training aid to help amateurs and
prospective amateurs in passing the FCC exams neccessary to obtain US amateur
radio licenses. If you can consistently pass the exams given here,
you should almost certainly pass an actual VEC administered exam..."
Amateur Radio Exams include:
"...Technician Class Practice Exam;
General Class Practice Exam;
Extra Class Practice Exam..."
For more information see
QRZ
COMMERCIAL OPERATOR LICENSE EXAM
FCC COMMERCIAL OPERATOR LICENSE PROGRAM EXAMINATION QUESTION POOLS - Federal Communications Commission (FCC)
VERY VERY VERY...EXTENSIVE.
Commercial Operator License Program
"...Examination question pools, with answers, are available for downloading..."
For more information see
FCC Commercial Operator License Program: Examinations;
FCC Commercial Operator License Program;
Wireless Telecommunications Bureau (WTB) or the
Federal Communications Commission (FCC);
Amateur Radio Design
AMATEUR RADIO DESIGN CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
AMATEUR RADIO AND AUDIO CALCULATIONS
AMATEUR RADIO AND DX REFERENCE GUIDE - Rod Dinkins - AC6V
VERY VERY VERY...EXTENSIVE.
For more information see
Amateur Radio and DX Reference Guide
HAM-RADIO, SHORTWAVE & CB-RADIO GUIDE - The DXZone.com Ham radio guide
VERY VERY VERY...EXTENSIVE.
AMATEUR RADIO CALCULATORS, PROJECTS, ETC. - VK10D, Owen Duffy
Multimedia Amateur Radio Projects, Articles, Calculators, Reports, etc. (Text & Images).
VERY VERY VERY...EXTENSIVE.
Some examples of Amateur Radio Projects include:
"...Field Strength Meter software;
Passive DI box; Sound card microphone preamplifier;
Inverted L for HF; TuneMate for Icom transceivers;
PIK - PIC Iambic Keyer; Narooma End Fed Wire;
Antenna mast for experimental use;
Earthing system at VK1OD; VK1CAE Experimental FlexDigi Node; etc..."
Some examples from over "12" Amateur Radio Calculators include
Field Strength/Receive Power Converter
Field Strength/Receive Power Converter Calculator INPUT Values include:
Field Strength
"...FS Bandwidth; Distance to Source; Frequency..."
Receiver
"...Receiver Bandwidth; Distance to Source; Receiver Input Resistance;
Antenna Gain; Additional Loss..."
Noise Figure Y Factor Method Calculator
Noise Figure Y Factor Method Calculator INPUT Values include:
"...General Inputs; Noise Source; Instrument Calibrations;
Measurements..."
RF Transmission Line Loss Calculator
RF Transmission Line Loss Calculator INPUT Values include:
Transmission Line Type
"...Andrew; ARRL Generic; Belden; Davis BURY-FLEX; JIS;
Open/Air Dielectric; RFI; RG; etc..."
Length; Frequency; Mismatch (None, Zload, Yload, etc.)..."
EMR MPE Standards Compliance Evaluation Tool
EMR MPE Standards Compliance Evaluation Calculator INPUT Values include:
Antenna
"...PEP input; Gain; Ground Reflection; Frequency; etc..."
Modulation
"...Modulation Type; Modulation Factor Percentage; Transmitter On or Off..."
Scenarios.
Calculator to support Manual Testing of Field-Strength Levels Using Conventional Receivers
Manual Testing of Field-Strength Levels Using Conventional Receivers Calculator INPUT Values include:
"...Receiver Bandwidth; Attenuator; Frequency; Receiver noise floor; etc..."
AMATEUR RADIO AND AUDIO CALCULATORS - J. Owen, Wirral Peninsula,
County of Merseyside, U.K.
VERY VERY VERY...EXTENSIVE.
For more information see
Amateur Radio & Electronics or
John Owen's Home Page
Some examples from over "24" Radio Calculators & Audio Calculators include
Antenna EiRP Estimator
Antenna EiRP Estimator Calculator INPUT Values include:
Power; Frequency; Coax Length;
Coax Type
"...RG58C/U; RG174A/U; UR 43, 67 & 95; etcs..."
Antenna Type
"...Half-wave Dipole; 5/8 Wave; 2, 3 & 4 Element Yagi;
Quad Loop; 3, 3 & 4 Element Quad; Other..."
Gain..."
Single-Layer Coil Designer
Single-Layer Coil Designer Calculator INPUT Values include:
"...Internal Diameter of Coil; Length of Coil;
Required Inductance; Dust Core (Yes or No)..."
Op-Amp Circuit Design
Op-Amp Circuit Design Calculator INPUT Values include:
Type of Op-Amp Circut
"...Inverting; Non-inverting; Divverential..."
Ra; Rf; V1; V2.
Zener Diode Selector
Zener Diode Selector Calculator INPUT Values include:
"...Maximum Imput Voltage; Minimum Input Voltage;
Required Output Voltage; Maximum Load Current..."
COIL CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
COIL DESIGN CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
COIL DESIGNER (JAVA APPLET) - J. Ponton,
School of Chemical Engineering,
University of Edinburgh, Edinburgh, Scotland, U.K.
Coil Designer Calculators include:
Coil Calculator INPUT Values include:
"...Inductance; Diameter; Length; Turns; Wire..."
Toroid Design Calculator INPUT Values inlcude:
"...Inductance; Size; Material..."
Wire Gauge Conversion Calculator
For more information see the
Coil Designs;
GM0RWU's Software and Projects Page;
Radio Page or
Jack Ponton's Home Page
SINGLE-LAYER COIL DESIGNER CALCULATOR - J. Owen, Wirral Peninsula,
County of Merseyside, U.K.
Single-Layer Coil Designer Calculator INPUT Values include:
"...Internal Diameter of Coil; Length of Coil; Required Inductance; etc..."
For more information see
Amateur Radio & Audio Calculators;
Amateur Radio & Electronics or
John Owen's Home Page
SINGLE LAYER AIR COIL INDUCTANCE CALCULATOR - Darryl Boyd
Single Layer Air Coil Inductance Calculator INPUT Values include:
"...Solve for: Inductance, Diameter, Turns or Coil Length;
Coil Diameter; Number of turns; Coil Length; etc..."
For more information see
Stay Tuned Crystal Radio and Tube Radio Web Site
CONVERT & CORRECT DIAL READINGS CALCULATORS & APPLETS
CONVERT GR821A READINGS TO ADMITTANCE/IMPEDANCE (JAVA APPLET) - K. Schmidt,
Department of Physics and Astronomy, Arizona State University
Convert GR821A readings to admittance/impedance Applet
"...converts the dial readings of a General Radio GR821A
Twin-T impedance measuring circuit to admittance and
impedance values incorporating residual corrections..."
For more information see
Kevin Schmidt's Home Page
VSWR CALCULATORS & APPLETS
VSWR CALCULATOR - P-N Designs, Inc.
VSWR Calculator INPUT Values include:
"...VSWR, Reflection Coefficient, or Return Loss..."
For more information see
Microwave Calculators or
Microwave 101
VSWR CALCULATOR - Owen Duffy
VERY EXTENSIVE.
VSWR Calculator is
"...designed to model the common
configuration where a transmitter which is designed for a
particular load impedance, is connected to a an antenna of
that impedance, over transmission line of the same
characteristic impedance..."
For more information see
VK1OD Tools or
VK1OD
VSWR REDUCTION CALCULATOR - Spectrum Microwave
VSWR Reduction Calculator
"...One technique to reduce the reflected signal from the input or output of
any device is to place an attenuator before or after the device. The attenuator
reduces the reflected signal two times the value of the attenuation, while
the transmitted signal receives the nominal attenuation value..."
VSWR Reduction Calculator INPUT Values include:
"...Attenuation; VSWR or Return Loss; Gain of the device..."
For more information see
Tools or
Spectrum Microwave
Antenna
ANTENNA CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
ANTENNA SYSTEMS CALCULATORS & APPLETS
ANTENNA SYSTEMS COURSES, TEACHING MODULES, PROJECTS & DATABASES
INTRODUCTION TO WAVE PROPAGATION, RADIO WAVE PROPOGATION,
PRINCIPLE OF TRANSMISSION LINES, AND ANTENNAS - Naval Electrical Engineering Training Series
& Hosted by Integrated Publishing
Multimedia Wave Propagation, Radio Wave Propagation,
Principles Of Transmission Lines, & Antennas Course, Glossary, etc. (Text, Images, Animations & Simulations).
VERY VERY VERY...EXTENSIVE.
Introduction to Wave Propagation, Transmission Lines, and Antennas
"...Introduces wave propagation, transmission lines, and antenna theory. Topic 1
discusses wave motion, sound-wave terminology, light waves, properties of
electromagnetic waves and the electromagnetic spectrum. Topic 2 discusses
radio-wave propagation, including components of radio waves,
electromagnetic fields, and effects of the Earth's atmosphere and terrain
on radio waves. Topic 3 discusses transmission line theory, including terminology..."
Examples from over "60" Antenna Subchapters include:
"...Principles Of Antenna Radiation;
Current And Voltage Distribution On An Antenna;
Radiation Of Electromagnetic Energy;
Antenna Characteristics;
Polarization;
Radiation Resistance;
Isotropic Radiation;
Anisotropic Radiation;
Antenna Loading;
Basic Antennas;
Folded Dipole;
Array Antennas; etc..."
For more information see
Naval Electrical Engineering Training Series or
Integrated Publishing
AMATEUR RADIO, DX REFERENCE GUIDE, ANTENNA CALCULATORS, PLANS, ETC. - Rod Dinkins - AC6V
VERY VERY VERY...EXTENSIVE.
For more information see
Amateur Radio and DX Reference Guide
HAM-RADIO, SHORTWAVE & CB-RADIO GUIDE, ANTENNA CALCULATORS, PLANS, ETC. - The DXZone.com Ham radio guide
VERY VERY VERY...EXTENSIVE.
ANTENNA ELMER - E. Oros & B. Cocco, The Elmer HAMlet
VERY VERY VERY...EXTENSIVE.
Some examples from over "20" Antenna Calculators includes:
"...HF/UHF Dipoles Calculator;
Calculate Electrical Length of a Line;
Folded Dipoles Calculator;
Determine the Power Output to Antenna Calculator;
How long should my Coax Cable be Calculator;
Design Dipoles and Inverted Vees Calculator;
Quarter Wave Line Matching Yransformer Calculator; etc..."
N3DNO'S ANTENNA CALCULATORS - J.E. Stewart
N3DNO's Antenna Calculators include:
"...Find the length of a Dipole Calculator;
3 Element Yagi Calculator..."
For more information see the
Jim's Homepage
ANTENNA SYSTEM EVALUATOR CALCULATORS & APPLETS
ANTENNA SYSTEM EVALUATOR - CALCULATOR - VanVarden
VERY EXTENSIVE.
CB and Amateur Radio Antenna System Evaluator INPUT Values include:
"...power from xmitter in watt; feed line loss in db;
-1VSWR @ xmitter; Antenna gain in dBi..."
For more information see the
VanVarden family web page
AIR INDUCTOR CALCULATORS & APPLETS AND
PI NETWORK CALCULATORS & APPLETS
PI NETWORK CALCULATOR & AIR INDUCTOR CALCULATOR - J. Hawkins
For more information see
Jim's Home Page
CUBICAL QUAD ANTENNA CALCULATORS & APPLETS
CUBICAL QUAD ANTENNA CALCULATOR - VanVarden
VERY EXTENSIVE.
Cubical Quad Antenna JavaScript Calculator for CB and Amateur Radio Communications INPUT Values include:
"...Center frequency..."
Cubical Quad Antenna JavaScript Calculator for CB and Amateur Radio Communications OUTPUT Values include:
"... Element Total Length; Wire One Side; Spreader Half Length;
Spreader Full Length; Element Spacing..."
For more information see the
VanVarden family web page
LINEAR ANTENNA CALCULATORS & APPLETS
LINEAR ANTENNAS (JAVA APPLETS) - Amanogawa
VERY EXTENSIVE.
For more information see
Linear Anatennas or
Amanogawa
Some examples from over "4" Linear Antenna Applets include
Radiation Patterns of Two Linear Antennas
Radiation Pattern of Linear Antenna
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