Joe Cahak has more than 25 years of design and test engineering experience. Specialties include RF/Microwave transceiver and semiconductor
parametric test, CAD and software design with extensive capabilities in process automation, database programming, & graphics. Joe has
created easy to use software for engineering and science, all available a reasonable
price. Here are a few of the most popular:
• RF Calculator: Large variety of the most often
needed electronic and RF test calculations
• Astro Calculator: General time and
• PNA Capture: Test automation tool for the
Agilent PNA model vector network
• S-Parameter Library: LLB library (LabVIEW),
including a DLL and
all associated files to the
library for use in other programs languages
ENA Capture: Test automation tool for the
Agilent ENA model vector network analyzer
Unit Conversion Tool - powerful, intuitive,
and easy-to-use utility for quick and accurate conversion
between almost every possible unit of measure, from one
system to another. The latest version includes more than
2200 units in 78 categories. The categories include: length,
area, speed, mass, numbers, volume, time, density, force,
pressure, energy, power, flow, temperature, angle, light,
fractions, data transfer, and many more.
Alibre | 877-525-4273 | Richardson, TX
Alibre Design - 3D mechanical CAD softwareludes parametric
solid modeling, associative 2D drafting & detailing, &
real-time Team Design.
Andrew A CommScope Company
| Orland Park, IL
Base station, broadband, earth station,
DCS/PCS, GSM, TV broadcast, land mobile, accessories, free
planning software, coax, waveguide, Antenna System Planner,
Applied Wave Research
The Application Engineering staff of the Microwave Semiconductor
Division of Hewlett-Packard Co. (now Keysight Technologies)
created AppCAD as a design help for RF & Microwave ("wireless")
designers. AppCAD was then, and still is, distributed free
of charge as a service to the wireless engineering community.
AppCAD is useful for the design and analysis of many circuits,
signals, and systems using products from discrete transistors
and diodes to Silicon and GaAs integrated circuits. As of
this posting, the latest version is 4.0.
Radio Labs | +61 2 4252 8959 | Australia
SimPLL is the easy way to design, optimise and simulate
PLL frequency synthesizers. SimPLL accurately predicts the
phase noise, reference spurs, lock time, modulation response
Systems | arkrfsystems.com
SPsim: Analogue, RF and Microwave simulator designed
to be intuitive. A slick user interface which has no legacy
code and operates using standard windows controls and keystrokes
allowing circuits and simulations to be entered and set
up in seconds. Compatible with Sonnet for EM simulation.
SPview2: Visual S-Parameter extraction and analysis
w/support for VNAs, spectrum and scalar analysers.
NF measurement via many supported spectrum analysers.
Features a real time measurement mode. Autolab: Automated
Laboratory Measurements. Includes NF, P1dB, IMD, ACPR, harmonic
distortion. Tests 2 and 3 port devices. Drivers for most
spectrum & scalar analysers, signal generators &
AVX | 843-946-0414 | Myrtle Beach, SC
thin film directional couplers, Z-chip combo R&C impedance
matching surface mount chip, ESD/surge protection, EMI/RFI
feedthrough filters, AVX SPIMIC capacitor calculation, connectors
- PCB, rack-and-panel, DIN, coaxial/RF, filters, resistors.
Computing | Kirkland, WA
ruler lets you make measurements of anything on your screen.
Reglo is a versatile on-screen ruler that is perfect for
designers, artists, webmasters, and anyone else who needs
to handle graphics. In addition to supporting many different
units of measurement, orientations, and ruler scales, Reglo
has a wealth of handy features to make your job a lot easier.
GmbH | +49 7348 928233 | Germany
- software package used to collect, edit, analyze and visualize
measured physical parameters on semiconductor wafers.
Inc. | 514-904-5546 | Canada
specialized software for the simulation and analysis of
transients in power systems.
Like the name says,
here's a nice collection of chemistry (and physics)-related
| 408-943-1234 | San Jose, CA
InCyte's fast and accurate
chip estimation technology provides results that typically
correlate to within 5-10% of final silicon. Users enter
a high-level design specificationluding gate counts, clock
speeds, IO, and memory configurations. InCyte then provides
users with an extensive IP catalog to explore adding various
third party soft and hard IP cores to a design.
efg's Computer Lab
C.I.E. Color Chromaticity
Diagram Chart software.
Simulation Technology (CST)
Framingham , MA
Microwave Studio is a specialist tool
for the 3D EM simulation of high frequency components. Microstripes
is a powerful 3D electromagnetic simulation tool, used extensively
for solving challenging radiation problems including complex
antenna structures, installed performance, EMC/EMI/E3 issues.
Design Studio is a versatile tool that facilitates 3D EM/circuit
co-simulation and synthesis. Antenna Magus is the first
antenna design tool of its kind - has a huge database of
antennas that can be explored to find, design and export
models of designed antennas to Microwave Studio.
830-832-3010 | Ridgeland, MS
simulation and code synthesis using computer sound card.
Generate and decode AF signals used in radio communications
systems. Measure SINAD, SNR, THD. 2-Tone Decoder: fire dispatch
pager tone frequencies, SINAD: software DSP tool for test,
alignment and performance verification of radio communications
receivers, Dispatcher: turn any PC into a Dispatch Console,
Tone Generator for 2-way Radio Signaling: PC-based test
software for paging, ANI, DTMF, SELCAL, tone remote control
| 27-21-7940799 | South Africa
3D geographical databases
for wireless network planners, offers free 500m resolution
global data for download, some of the world's largest wireless
telecoms operators, equipment suppliers & consultants
with the best quality heights, clutter, vectors, raster
maps and orthoimagery.
02890 320736 | Northern
Spartan is powerful chemistry software with an
elegantly designed graphical interface that makes it easy
to learn and use. It is effective for learning (and teaching)
the subtleties of organic and physical chemistry. For professional
chemists and researchers Spartan accelerates research in
both academic and commercial environments. The new Odyssey
program provides an electronic learning environment with
rich interactive 3D molecular simulations and structured
chemistry content ideally suited to first year undergraduate
chemistry and pharmaceutical science courses.
1-866-4WINSPC | Southfield,
WINSPC statistical quality control software for manufacturing
process improvements. Use real-time SPC software to detect
and correct nonconformances and continuously improve your
products and processes.
Data Translation | 800-525-8528 | Marlboro,
Data Translation is a world leader in high performance
USB data acquisition modules and open, powerful test &
measurement software. Measure Foundry is is a rapid application
development package that provides a system solution for
all types of measurement instruments. It is similar to LabView
DBA Software | 800-995-1959 | Atascadero, CA
A market leader in manufacturing software for small
business. Our latest product, DBA Manufacturing Next-Generation,
sets a new standard in all-purpose, common sense manufacturing
866-571-6402 | Annapolis, MD (based in Hungary)
TINA Design Suite - A powerful yet affordable circuit simulation
and PCB design software package for analyzing, designing,
and real time testing of analog, digital, VHDL, MCU, and
mixed electronic circuits and their PCB layouts. change
Edison - create, test, and repair circuits safely and easily
with photorealistic 3D components, and get the schematics
simultaneously; explore the laws of electricity and electronics
via multimedia screen with virtual measurements, sound and
315-655-8710 | Cazenovia,
Surface mount, high frequency, DC blocking, CapCAD
capacitor calculation, thin film products.
Dr. Fritz Dellsperger
Berne Institute of
Technology | Switzerland
Smith 2.00 - advanced Smith
Chart software, interactive user input builds schematic
by clicking in chart area, constant gain, noise, stability &
Philippe Marquis | Metz, France
Printer - cartesian, polar, triangular, hexagonal, axonometric &
dot diagrams, linear scales (metric, imperial, time, equal
divisions, customizable), non-linear scales (logarithmic,
quadratic, gaussian, square root,Weibull, logit), music
manuscripts & tablatures, mercator grids, pattern papers
(lines, bricks, losanges, ellipses, hexagons) - FREE.
Free file viewer for DXF, DWG,
and most other common CAD file formats, from SolidWorks.
Powerful and easy-to-use logging
applications for radio enthusiasts such as amateur radio
operators, shortwave DXers and listeners, broadcast band,
VLF, VHF, UHF, and TV DXers. DXtreme Station Log & DXtreme
F. Glenn) | 262-373-1185 | Butler, WI
diagram plotter. Engineering Tools
Suite applications run on the Windows 9x/NT/2000 Desktop,
Palm PDA and WindowsCE PocketPC (coming soon - versions
for Mac and Linux) . You can download evaluation versions.
Engineering Tools Suite, Mechanical Engineering Tools,
Hydraulic Engineering Tools, Machine Design Tools, Electrical
Engineering Tools, Fluid Mechanics Tools Heat & Mass
Transfer Tools, Mathematical Tools, Thermodynamics Tools,
Pulp & Paper Tools, HVAC Tools, Heat Exchanger Tools,
Structural Engineering Tools, Pipe Flow Tools, Engineering
Utility Tools, Pneumatic Engineering Tools, Engineering
Multiple pages of
calculators for capacitance, resistance, inductance, attenuation,
microstrip, resonance, etc. Many astronomical calculators.
| +49 (0) 421/2208420 | Germany
EZGPIB is Freeware, provided
by Ulrich Bangert. This software runs on a PC and can be
used to control test equipment with a GPIB (IEEE488) interface.
It does at least some of what LabView does.
(Deutsch - English)
SoftWorks | 262-238-8088 | Milwaukee, WI
Provider of software designed to enhance factory operations
including software for maintenance management, file change
management, PLC programming & simulation, data control
(Altair Engineering) |
EU: +49 7031 6208 22 | USA: 1
866 419 FEKO
Comprehensive electromagnetic simulation
software tool for the electromagnetic field analysis of
3D structures. It offers multiple state-of-the-art numerical
methods for the solution of Maxwell’s equations, enabling
its users to solve a wide range of electromagnetic problems
encountered in various industries.
Filter Solutions | 602-206-7781 | Phoenix,
Filter Solutions, Filter Light, & Filter Free
are comprehensive PC windows based filter synthesis &
analysis software packages for passive, transmission line,
active, switched capacitor, & digital filters.
Front Panel Express | 206-768-0602 | Seattle,
Front Panel Designer is a powerful and fast tool to
design and to order front panels. Totally specify material
type, thickness, countersinks, radii, etc, and it will generate
a cost estimate.
Giraffe Production Systems
(03) 9609 6066
| Melbourne, Australia
Production Scheduling and Production
Planning Software - to automate manufacturing resource planning
and production planning through plant simulation and process
modelling. Optimised resource planning, process control
and machine scheduling and fully automated re-scheduling
to reflect contingencies in production from real-time data
from sensors and controls.
Wave Technology | +45 20 88 58 30 | Denmark
Filter and Coupling Matrix Synthesis Software. Get an overview
of main filter parameters in seconds, without complex circuit
models and modeling. Our Coupling Matrix Synthesis™ software
facilitates synthesis of N+2 coupling matrices for Chebyshev
bandpass filtering functions, with arbitrary finite-position
transmission zeroes. The software also facilitates coupling
matrix synthesis through topology matrix definition. It
gives a fast and accurate overview of insertion loss, isolation,
group delay and coupling coefficients versus filter order,
return loss and transmission zero positions. The software
allows placement of complex transmission zeroes, which opens
up for group delay shaping and analysis.
| 800-225-0585 | Brookfield, WI
Offers quality enterprise
software that runs on the IBM iSeries platform.
514-397-0606 | Montreal, Quebec, Canada
RF-vu Software: In-building wireless design solutions for
wireless carriers, equipment suppliers and infrastructure
integrators. One tool to manage the complete project lifecycle
from design plan to “as built”ludes support for simultaneous
design of multiples technologies such as 3G, 2G, Wifi, WIMAX
and multiples frequency bands VHF/UHF, Tetra, Public safety700,
GSM, UMTS, AWS & more. Automatic calculation, hardware
validation, coordination of all documentations, consistence
in design & flexibility, RF-vu the ultimate planning
416-920-5884 | Toronto, Ontario, Canada
and publisher of powerful PDF creation and extraction software
productsluding Able2Extract and the Sonic PDF Creator.
iPhone Apps for Science Geeks
22 web and
native applications for the fancy phone-toting science lover.
| 714-935-2900 | Anaheim, CA
Reliability and risk assessment
(WB6BLD) | Oak Ridge,
Software, App Notes. A technically-oriented site for
engineers, technicians and radio amateurs.
800-829-4444 | Santa Clara, CA
equipment, racks, cables, adapters, amplifiers, cables,
RF switches, EEsof EDA products.
Kyushu University (IGSES)
Urban and Architectural Environment Laboratory,
ET_AEE (Educational Tools for Architectural Environment
Linear Technology | www.800-454-6327 | Milpitas,
A/D, D/A converters, comparators, filters, RF power
detectors, FilterCAD active filter designer, op-amps.
Manfred Kanther |
Matching Network Designer for Excel
This very fine
Excel spreadsheet available for download by RF Cafe visitors.
It is written in the Excel 2000 environment, so any version
from 2000 up through Excel 2007 will support it. Click the
screen image to the right to download the ZIP file. If you
did not know better, you would believe that this is actually
a stand-alone application, and not a spreadsheet. All of
the coding appears to be implemented in the VBA code.
| 800-267-6583 | Canada
Maple 13 mathematics productivity
tool, MapleNet web-based learning in math, science, &
- Reference Desk | Sydney, Australia
of Calculators, File Download Time Calculator, World Daily
Reports (Weather, Time, Ships, Ports, Museums, Orchestras
etc.), and more.
519-578 2092 | Kitchener, Ontario,
FAZA software tool for the analog filters design
- free demo. Also a very extensive filter design tutorial.
Micrometals | 800-356-5977 | Anaheim, CA
Toroids, iron powder cores for power conversion & line
filter applications & radio frequency applications,
magnetic alloy core materials for high temperature applications,
inductor design software (free).
Instruments / AWR
310-726-3000 | El Segundo, CA
NI AWR Design Environment
is a portfolio of software products that RF/microwave designers
can use to design, develop, and realize microwave/RF components,
circuits, and systemsluding monolithic microwave integrated
circuits (MMICs), RF printed
circuit boards (PCBs), microwave
modules, RF integrated circuits (RFICs),
communication systems, radar systems, and antennas. It consists
of high-frequency design environments inclusive of System
simulation (Visual System Simulator™),
Circuit simulation (Microwave Office
and Analog Office), Electromagnetic analysis
(AXIEM and Analyst™) and also
AWR Connected™ modules which expands functionality through
3rd party tool collaboration.
Instruments | ni.com
800-433-3488 | Austin,
LabView Measurement & automation software, modular
instruments, switches, motion controllers & motor drivers,
sound & vibration measurement & analysis.
Nat Radio Co | Point Pleasant, NJ
for amateur radio and engineering.
N0HR.com is the home of MobileLog and PPCMorse - ham
radio software utilities for PocketPC PDAs, by Pat Rundall.
Octave | University of Wisconsin
mathematics package - similar to Matlab, but FREE.
Omicron Lab | 800-OMICRON/ Houston, TX
passive filter design.
Orbiter Space Flight Simulator
Orbiter is a spacecraft simulation
tool, an in-depth simulation based on complex physics. Orbiter
models space travel (in a variety of craft), planetary motion
and atmospheric effects. It requires a basic knowledge of
the principles of space flight and lots of practice. Written
and maintained by Martin Schweiger.
| 800-910-7919 | Anaheim, CA
Pack-IT™ A customized software
tool for RF system simulation of packaged chips. Pack-IT
models traces, substrate, active, and passive components
simultaneously in a self-consistent way, which enables first-pass
success for RF system design. Semi-IT™ A customized software
tool for active component design such as a power amplifier
(PA). Pack-IT models the PA, substrate, and matching circuits
simultaneously in a self-consistent way, which enables first-pass
success for RF component design. Please email us at email@example.com
with your project request, and one of our technical team
will contact you.
This program is a test automation
tool for the Agilent PNA model Vector Network Analyzer.
Connects GPIB and controls the testing, specification and
report generation using excel worksheets for the ultimate
in data accessibility. Also saves the data in ASCII delimited,
S2P, SQL Server, SQL Server Express or Access data basing
for the ultimate in flexibility. Uses the National Instrument
GPIB Instrument Interface Buss Adapter.
| Hong Kong Science Park
Online design tools for switching
power supplies, battery chargers, AC adapters, AC/DC converters,
DC/DC power converters, high frequency lamp ballasts, integrate
circuit (IC), DC/AC inverters, power converters for LEDs,
automotive power converters, etc. Provided by PowerELab.
Print Free Graph Paper
Save yourself money
and a trip to the store! Print graph paper free from your
computer. This site is perfect for science and math homework,
craft projects and other graph paper needs. All graph paper
files are optimized PDF documents requiring Adobe Reader
Free online software tool
to help U.S. industrial plant managers improve energy management
at industrial facilities.
This is a very popular Smith Chart program by Nathan
Iyer, of RF Micro Devices, Windows-based, FREE. Other programs
also available like Cascade, PLLSim, and CoilSim.
Radio Engineering Services
| Torino, Italy
HERALD Professional - A PC program for
Windows to assist the radio engineer in the design of point-to-point
microwave links and networks. Site/hop configuration; customized
antenna & radio equipment libraries; link ludget; profile
analysis (clearance, reflections); multipath outage; rain
unavailability; ITU | Bell Labs | ITM propagation modeling;
Interference analysis, Passive repeaters; ITU-R & North
America performance objectives; One-click access to background
theory. Path profiles imported from NASA | SRTM digital
terrain maps (free download, worldwide coverage). Output
documents in English, Spanish, or Italian.
RadCon 1.1 Conducted
Immunity for compliance testing to GR1089, IEC 1000-4-6,
SAE J1113 automotive and MIL-STD test specifications. RI-140
Magnetic Field Immunity for magnetic field immunity tests
to the Ford RI-140 spec, which is virtually identical to
a MIL-STD RS101 spec.
Associates | 315-735-4217 | Utica, NY
consulting services, computer automated test design &
development, engineering prototypes & low rate manufacturing,
RF/Microwave system design & analysis, subcontract specifications,
wireless system design, custom software program development,
LabVIEW software development, lectures & training classes,
computer consulting services. Software: SpurFinder, TunerHelper,
RFSpecTest, PathLossSolver, Painless Extraction.
Red Binary | 620-665-4085 | Hutchinson, KS
Electrist 1.1 For Palm OS. The top-rated Electrical and
Electronic Engineering Calculator for Palm OS. Over 90 formulas &
Erie, Pennsylvania |
RF Cascade Workbook 2005
Extensive Excel spreadsheet,
RF Workbench block diagram level RF system simulator,
Up/Downconverter, Spurious Analysis, Budget - best value
RF Component Stencils for Visio,
Smith Chart for Visio,
Excel Smith Chart,
EIA Equipment Rack Stencils for Visio,
EIA Tube Bases for Visio,
RF Cafe Online Calculators.
RF and RF Test calculations
for design and analysis.
RTS Scientific | 905-882-2599 | Toronto, Canada
EMPIRE XCcel™ for microwave engineers, features a new GUI,
designed from the ground up for ease of operation and is
very intuitive. The XCcel replaces previous software tools
available from IMST and now offers an even faster speed
which has been accelerated even more by a highly advanced
exploitation of modern processor architecture, full package
includes a parametric OPTIMIZER. The new XCcel is for microwave
engineers involved in the design of antennas, waveguides,
filters, resonators, interconnects etc., as well as dosimetric
investigations of mobile phones, EMC of implants and other
body modeling work.
Software | 1-866-WiLANTA | San Jose, CA
+44 (0) 20 8538 0158 | Europe
+91-80 40105200 | Bangalore,
A leading supplier of real-time test and measurement
solutions for testing and analyzing the performance of IEEE
802.15.4/ZigBee (WPAN), IEEE 802.11a/b/g (WLAN), IEEE 802.16-2004
(WiMAX) and IEEE 802.16e (Mobile WiMAX) transmitters and
receivers. Customizable manufacturing test automation support
for major ZigBee Chipsets & applications such as ZigBee
Smart Energy (AMR) and ZigBee Home Automation.
| 425-369-6000 | Issaquah, WA
ShapeSource.com is the
best resource for Microsoft Visio shapes and add-on products.
This site contains shapes for free download and for sale
that are useful for many business and technical diagrams.
| 408-773-1714 | Santa Clara, CA
Re-usable EDA building
blocks that help accelerate EDA tool development. Depending
upon the customer's requirements, a combination of EDA building
blocks and EDA software development services are to provide
a complete solution. SoftJin's EDA building blocks are also
available for licensing independently.
Allows you to view your 2-port s-parameter (.s2p) files
in graphical format. Contents of multiple files can be displayed
on the same charts for comparison. S-parameter de-embedding
is in the verification process.
Software | 321-729-9976 | Palm Bay, FL
QuickLoad data analysis tool allows instant access to STDF
and other semiconductor ATE data formats in MS Excel and
R analysis tools. The QuickEdit viewer/editor allows in-depth
viewing and editing of STDF files to properly configure
product characterization and other analyses. The QuickChange
library allows perl, C, Java access to complete STDF contents.
30-day free trials.
(011) 3263 6069 | India
These hard drive data recovery software downloadable
demo versions will scan, analyze and show you the data from
your crashed/inaccessible hard drive.
Sunshine Design Engineering Services | www.Ramona,
Design Specialties - hardware, CAD and software engineering.
Test Engineering Services - 20 years experience RF/Microwave
and Semiconductor Parametric Test. Electronic Calculator
- Multiple pages of calculators for capacitance, resistance,
inductance, attenuation, microstrip, resonance, etc. Many
astronomical calculators. RF Calculator: RF and RF Test
calculations for design and analysis.
Technologies | 503-848-8500 | Portland, OR
Manufactures field test equipment and software for verification
of wireless communications system coverage. The STI systems
automate field measurements of mobile radio and other RF
signals during drive tests to create contour plots of coverage.
Software | | 780-414-6718 | Edmonton,
Advanced planning and production scheduling
software. In addition, we provide ongoing consulting and
support servicesluding process modeling, new application
development, custom reports and integration with a variety
of other systems (ERP, CRM, MRP, etc.).
Technology Systems | 860-482-2359 | Torrington
Free electronic design software.
Club | 408-445-2902 | San Jose, CA
graphical mixer spurious analysis.
Works | 508-647-7000 | Natick, MA
high-level technical computing language and interactive
environment for algorithm development, data visualization,
data analysis, and numerical computation. RF Blockset to
design and simulate the behavior of RF systems and components
in a wireless system. RF Toolbox to design and analyze networks
of RF components.
RadCon is conducted/radiated emissions
software used for compliance testing to GR1089, IEC 1000-4-6,
SAE automotive and MIL-STD test specifications. It can perform
substitution type testing, where pre-calibrated signal generator
levels are replayed during tests. It can also perform substitution
testing to forward-power or net-power levels recorded during
calibrations. In addition, it can monitor the induced current
during the test and optionally limit over-testing based
on the induced level. Free download.
Design | 800-280-5176 | Grass Valley, CA
Parts&Vendors personal parts list manager and vendor
database that helps keep track of all the components that
go into a new product design.
This is the original spreadsheet
program for DOS, provided by its original developers, Dan
Bricklin and Bob Frankston. Includes the complete history.
| 425-369-6000 | Issaquah, WA
A huge collection of Visio
shapes and custom SmartShapes development services.
VNA Help | 707-695-1262 | Santa Rosa, CA
Cal Kit Manager network analyzer utility, SWR Calculator.
EU: +49 7031 6208 22 | USA: 1 866
Graphical language for simulation and model-based
embedded development. The core product, is used for general
modeling, simulation and control system design applications.
Quickly develop virtual prototypes of any dynamic system.
Models are built by simply sliding blocks into the work
area and wiring them together with the mouse.
| 760-747-6922 | Escondido, CA
Parfil filter design software
handles 20 types of coupled line and transmission line RF/microwave
filtersluding microstrip, stripline, coupled rods. Built-in
optimizers. Demo available.
WiseCalc is the complete mathematical text engine calculator
for your computer.
- it's FREE!
- it has a multi-line
text-editor type of interface
- it has 450+ unit conversions
- it has hundreds of functions built-in
- it can save and open calculation pages
- it can evaluate
built-in and user definable functions, units, constants,
Research | 800-965-3726 | Champaign, IL
Control System Professional - object-oriented environment
for solving common problems in control & systems areas
| 800-935-4479 | Arlington, VA
Develops and markets tools
that enable the design, deployment and configuration of
component-based embedded software systems.