coil ferrite calculator

Cubical Quad Antenna Calculator - Easy Quad calculator, enter center frequency to get a quad antenna size

Beverage Transformer Calculator - W0FMS Two-Wire Beverage (SWA) Transformer Calculator

HB9CV antenna calculator - Calculate dimension for HB9CV directional antennas

Yagi UDA Calculator - Online Yagi Uda antenna calculator

Helix Antenna Calculator - Online helix antenna designer, calculate size of helix antennas online

Discone Antenna Calculator - Calculate dimension for discone antennas online

Log Periodic Antenna Calculator  ^updated - Online calculator for Logarithmic Periodic Dipole Antenna LPDA

Coil Q Measurements - Coil Q Measurements - With a special focus on wet coils.

HF Helical Whip Calculator - Calculating HF helical whip antenna for mobile or portable operation

A Variable Base-Loading-Coil - A Variable Base-Loading-Coil for use under a HF Mobile Whip

160m mobile coil - 160m Coil design for a mobile antenna by N3QO

Homemade Loaded Coil Dipole - Homemade Loaded Coil Dipole ( w8010 diamond ) for 10, 15, 20, 40 and 80 meter

BiQuad Antenna calculator  ^updated - Online calculator for Bi-Quad antennas

Cantenna Calculator  ^updated - Online calculator for Cantenna special antenna for 802.11 Wi-Fi bands

Olympix - Performance RFI Filters that work right at the noise sources, ferrite cores.

NOAA Solar Calculators - Improved Solar Calculator, Old Sunrise/Sunset and Solar Noon Calculator, Solar Position Calculator

FerroxCube - Manufacturer of ferrites

Magnetic Loop Software - Loop Calculator and Capacitor Design Software

Coil32 Priority listing - Coil32 is a free coil inductance calculator, that allows to calculate: single layer and multi layer air core coils, toroidal air core coils, inductors on ferrite rings, in pot core, flat coils on the PCB, and also LC resonance parameters. The program have additional plugins to calculate another kinds of coils. The application is free for usage and distributing.

Microphone sensivity calculators - Mic online calculator , Microphone Dynamic Range Calculator, Microphone Sensitivity Calculator

dbm Calculator - The dbm online calculator and reference table for 50 Ohm

How rewind solenoid coils - Rewinding solenoid coils

Notch Filter Designer - Online calculator, Butterworth Bandstop (Notch) Filter Designer

Constant k Lowpass Filter Design - Online Constant - k Lowpass Filter calculator

SWR calculator - Online VSWR Voltage Standing Wave Ratio Calculator