Hits
Quick Trapped 15-20m Dipole
The traps were tested using a coupling loop to the homebrew antenna sweeper and with a little squeezing, they tuned to 21.1 MHz
post 30 May 2026
Coils Traps Antennas Links →
La nobile arte di costruire le trapple Hf
L'operazione di sintonizzazione avviene scostando tra loro, leggermente, le spire dell'induttore
W4DEX low LF frequency
This is an easy to build coil with variometer
Single-layer Coil Inductance and Q
This single-layer coil inductance calculator uses the Lundin's formula [5] for which the maximum relative error is stated to be less than 3 ppm
Air Core Inductor Inductance Calculator
Calculates the inductance of an air core inductor
Antenna Trap Design
Enter desired frequency MHz, Results inductance L uH Capacitance C pF
97
L'operazione di sintonizzazione avviene scostando tra loro, leggermente, le spire dell'induttore
This is an easy to build coil with variometer
This single-layer coil inductance calculator uses the Lundin's formula [5] for which the maximum relative error is stated to be less than 3 ppm
Calculates the inductance of an air core inductor
Enter desired frequency MHz, Results inductance L uH Capacitance C pF
Microsat Ham radio shop for ulari project, aprs, aprs with radio, bluetooth, gps, gsm, ham radio interfaces, weather,accessories, cables to radio
Amateur radio kits by Kanga US
Enigma Component Shop Cable & wire,capacitors, connectors, crystals/oscillators, filters, hardware,kits/modules,test & measurement