6 Telecommunications Calculators

Telecommunications & RF Calculators

Convert dB amplification gains, solve frequency wavelengths for antennas, compute line transmission attenuation losses, calculate light propagation speed delays in optical fiber, evaluate Shannon capacity boundaries, and gauge Bit Error Rates (BER).

Bandwidth & Capacity

Calculate the theoretical maximum channel capacity using Shannon-Hartley theorem, or estimate TCP throughput with packet loss and RTT.

Channel Properties

Real-World TCP Estimator

TCP Mathis limit estimates max speed on high-latency lines. High latency + small loss collapses throughput even on fat gigabit links.

Link Engineering Report

Real-time Calculations
Shannon Limit (Max Capacity)
66.58Mbps
Linear power signal-to-noise ratio is 100:1. Limit is 0.0666 Gbps.
Estimated Max TCP Throughput
7.39Mbps
Based on Mathis formula for TCP over lossy links assuming standard MTU (MSS = 1460 bytes).

Telecommunication Constants

Decibels (dB) are logarithmic units expressing power ratios. A 3 dB change doubles or halves the power. A 10 dB change corresponds to a factor of 10.

Shannon-Hartley Theorem establishes the absolute maximum error-free data rate (capacity) for a noisy communication channel.

Velocity Factor (VF) is the speed of electromagnetic waves in a transmission line relative to their speed in vacuum. For example, light travels ~31% slower inside fiber glass than in empty space.

Explore Additional Utilities

Fabric Width Yardage Converter

Convert fabric yardage requirements between different standard widths like 44 inches and 60 inches.

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Speed to fly — polar curve ↔ McCready interthermal speed

Calculate the optimum speed to fly between thermals based on the glider polar curve, expected next thermal climb rate, and headwind/sink.

gliding-soaring

Fold ratio — paper thickness ↔ maximum folds possible

Compute theoretical limit of fold iterations possible for paper size and thickness (Britney Gallivan equation).

paper-folding-origami

Wind Turbine Power Generator

Estimate power output (watts) of a wind turbine based on wind speed, rotor diameter, blade sweep area, and aerodynamic power coefficients.

environment

Sidereal Time Converter

Convert between standard Solar Time and Sidereal Time based on your longitude.

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Depth ↔ Geostatic & Hydrostatic Pressure

Determine lithostatic (rock overburden) and hydrostatic (fluid) pressure at custom geological underground depths or deep underwater.

geology

Water Footprint & Virtual Water Calculator

Estimate virtual water consumption based on diet choices, household activities, and direct/indirect product footprints.

environment

Horse Height (Hands ↔ cm ↔ inches)

Convert equestrian height from traditional hands (hh, where 1 hand = 4 inches) to centimeters and inches, with pony/horse classification.

health

Visible light transmittance ↔ tint level

Calculate Visible Light Transmittance (VLT) performance ratios and visual interior glare profiles.

glassmaking-glazing

Reverberation Time (RT60) Calculator

Estimate room RT60 reverberation times using Sabine and Eyring formulas, room volume, and surface absorption coefficients.

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Prism Power Converter

Convert ophthalmic prism power between prism diopters (PD) and degrees of deviation, with light bending estimations.

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Soil Plasticity Index Calculator

Calculate Plasticity Index (PI) from Liquid Limit (LL) and Plastic Limit (PL), and interpret soil state using the Atterberg limits chart.

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Sievert ↔ rem (Dose Equivalent)

Convert between Sieverts (Sv), rem, millisieverts (mSv), and millirem (mrem) to quantify biological effects and occupational radiation risk.

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Salinity for species — ppt ↔ specific gravity ↔ conductivity

Convert salinity values between ppt, Specific Gravity (SG), and Electrical Conductivity (mS/cm). Learn about species target zones.

aquaculture

Telescope Magnification Calculator

Calculate telescope magnification, exit pupil, and resolving limit from focal lengths and aperture.

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USCS Soil Classification Solver

Classify soil type under the Unified Soil Classification System (USCS) using sieve analysis and Atterberg limits.

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Fragrance load — wax weight ↔ % ↔ grams of scent

Calculate fragrance oil weight based on wax weight and target fragrance load percentage.

candle-making

Zipper Length & Size Converter

Convert zipper lengths between centimeters and inches, and explore standard zipper gauge size applications.

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Heel angle ↔ righting moment

Calculate heel angle, righting arm (GZ), righting moment, and sailboat stability from displacement, vertical center of gravity, and wind force.

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Chlorophyll concentration ↔ water color index

Convert Chlorophyll-a bio-concentrations (mg/m³) to ocean water color classes, Forel-Ule index, and trophic status.

oceanography