Interactive Wireless Network Design Analysis Utilities
The following CGI scripts will help you model your wireless network. The outcome is only theoretical, and assumes no drastic environmental factors, and controlled conditions. (No temperature inversions or large objects blocking the path)
- Wireless Network Link Analysis
- Calculates approximate received power levels and fade margins for wireless links
- Microwave Radio Path Analysis
- Generates a terrain profile graph and obstruction reports for a microwave radio link between two points
- Line-of-Sight Path Analysis
- Generates a JPEG image showing the line-of-sight path for a given transmitter location
- Longley-Rice Path Loss Analysis
- Generates a JPEG image showing the estimated Longley-Rice path loss for a given transmitter location.
- Parabolic Reflector Gain & Focal Point Calculator
- Calculates the gain, focal point, and radiation distances for parabolic dishes
- Fresnel Zone Calculator
- Calculates the required Fresnel zone clearances for a point-to-point link.
- Urban Area Path Loss
- Calculates the approximate path loss through an urban area
- Antenna Up/Down Tilt Calculator
- Calculates the required antenna tilt to compensate for Earth curvature
- Distance & Bearing Calculator
- Calculates the distance and bearing between two geographic points
- Omnidirectional Antenna Beamwidth Analysis
- Estimates the coverage of a vertical antenna pattern
- Return Loss Calculator
- Calculates return loss given forward/reverse power or SWR
- Knife Edge Diffraction Loss Calculator
- Calculates knife edge obstruction attenuation
- Decibel Conversion Calculator
- Converts various values referenced to/from decibels
- Scattering Parameters Are Fun!
- Calculates gamma in/out from S-parameters, experimental
- United States Ground Elevation Retriever
- Get the ground elevation to any point in the continental United States, experimental (dynamic IP)
Additional RF Design CGIs
- Lumped Component Wilkinson Splitter / Combiner Designer
- Designs low frequency Wilkinson power splitters/combiners
- Pi & Tee Network Resistive Attenuation Calculator
- Designs resistive Pi and Tee attenuation pads
- United States Frequency Allocations 30 - 3000 MHz
- Gives the current government allocation for a particular frequency
- Voltage To Power Conversion Calculator
- Converts between various AC voltages/powers
- RF Safety Compliance Calculator
- Yet another RF safety calculator
- Approximate Air Coil Inductance Calculator
- Estimates the inductance of an air coil given its dimensions
- Microstripline Analysis & Design
- Estimates the required width or length to make proper microstrip transmission lines
- Calculating Phase Line Length
- Calculates the required coax length for phasing antennas
- 3-Pole Butterworth Characteristic Bandpass Filter Calculator
- Designs 3-pole bandpass filters
- RF Pi Network Designer
- Designs LC style Pi networks for impedance matching
- PLL 3rd Order Passive Loop Filter Calculator
- Designs passive loop filters for phase lock loops
- Antenna Isolation Calculator
- Calculates isolation for horizontal & vertical antennas
- Mixer IMD Calculator
- Calculates potential IMD products in subtractive mode mixers.
- Master Lock Combination Calculator
- Given the 3rd digit to the combination
CGI Sources
CGI sources for the interactive wireless network design utilities tar ball.
CGI sources for the additional design scripts, tar ball.
Software / Mapping Services / Interactive Designers
- TCS Online Conversion Page! Everyone likes to steal their Javascript
- YDI Calculations Stole Javascript from TCS
- Large List of Interactive RF Utilitys
- Wireless Tools for Linux
- Assorted Wireless Ethernet Things
- Modified wireless tools for use with the Proxim Symphony link setup
- Radio Mobile Deluxe A free RF path plotting tool from VE2DBE.
- Geographic Names Information System Views togographic maps through Terraserver.
- Terraform
- Federal Geographic Data Committee
- Digital Raster Graphics (DRGs) Main page
- Digital Raster Graphics (DRGs) For Wisconsin
- U.S. Geological Survey data
- Andrew System Planning Software Very good (and free) microwave link planning software.
- RFS tools Free RF design tools from RFS Inc.
- Decibel Products Online RF Calculators
- AVX Interactive Component Engineering Tools
- Java Smith Chart dead link?
- Cubical Quad Antenna Calculator
- Times Microwave Attenuation Calculator
- Impedance Calculator for a RLC Series or Parallel Circuit
- Distance and Azimuth Calculations at the FCC
- Online 0.6 First Fresnel Zone Radius Calculator
- Pathloss Calculations by Harry, SM0VPO
- Antenna Height Above Average Terrain (HAAT) Calculator
- The Super J-Pole Antenna(Collinear Design)
- A Simple Seven Element Yagi Antenna
- Design an L-C Low pass or High pass Filter
Useful RF Design Perl Scripts
- RF T network design
- RF L network design
- Number of coil turns for an inductance
- Straight wire inductance
- Reactance calculator
- Tuned LC calculator
- Oscilloscope time/frequency figure'er outer
- Spurious signal requirements up to 225 MHz
- VHF line-of-sight distance / isotropic radiation field strength calculator
- 555 timer IC pulse width solver
- VHF/UHF free space loss calculator
- Real world metal-film resistor at RF equivalent circuit solver
- Approximate inductance of a wire parallel to ground
- Series RLC circuit solver
- Frequency <-> wavelength calculator
- Noise figure and temperature conversion
- Cotangent transformer calculator
- Mini-Circuits MAR-x preamp with a 3-pole input band pass filter designer
- Grid square calculator
- Slim Jim antenna designer
- Cellular transmit/receive frequency, channel number manager and FOVC hex code to channel number converter