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The magnetic loop
A 10 ft length of 5/16in copper tube gives a 39in diameter loop
post 05 Dec 2024
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Magnetic Loop Experiments
A 145MHz 2m loop. Using the software at the bottom of this page, I worked out that a 36cm length of wire, will need a capacitance of around 3.6pf, and around a 50% efficiency
Magnetic loop for 160M
Tuning capacitor and section of 160m-loop 7/8" Cellflex-Cable, 2.8m diameter
Magnetic loop with capacitive load for 30-10M
Equilateral Triangle Loop, Aluminium Profile 8 x 1mm, 1m side length
Portable Magnet Antenne von
An old radio-controlled rotary capacitor approx. 2x350 pF, a rotary capacitor approx. 50 pF for the 10-15 meter band, voltage-resistant ceramic capacitors 500pF to 3500pF
150
A 145MHz 2m loop. Using the software at the bottom of this page, I worked out that a 36cm length of wire, will need a capacitance of around 3.6pf, and around a 50% efficiency
Tuning capacitor and section of 160m-loop 7/8" Cellflex-Cable, 2.8m diameter
Equilateral Triangle Loop, Aluminium Profile 8 x 1mm, 1m side length
An old radio-controlled rotary capacitor approx. 2x350 pF, a rotary capacitor approx. 50 pF for the 10-15 meter band, voltage-resistant ceramic capacitors 500pF to 3500pF
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62