Hits
Delta Loop Low Cost
All you need is a 6.2m of flexible wire, 1.1m of 75_Ohm coax, some electrical connector blocks and a length of rope to hang it from
post 05 Dec 2024
Antenna 6 meter Links →
50MHz-Lambda/2-Vertical
The matching circuit is the same as above with the following components, C 1 = 20 - 110 pF, variabel Mica capacitor,C 2 = 2 - 15 pF, variabel foil capacitor
50MHz-Yagis
The 50MHz-Yagis are designed with an impedance of 12.5 Ohm or 28 Ohm and some types with 50 Ohm impedance
6 & 2 Meter Square Copper Dipoles
A 2m square dipole, made from copper plumbing fittings and 1/2 inch copper water pipe
6 Meter 5/8 Wave Vertical Antenna
The vertical is loaded from the bottom with a coil wound on a previous block
102
The matching circuit is the same as above with the following components, C 1 = 20 - 110 pF, variabel Mica capacitor,C 2 = 2 - 15 pF, variabel foil capacitor
The 50MHz-Yagis are designed with an impedance of 12.5 Ohm or 28 Ohm and some types with 50 Ohm impedance
A 2m square dipole, made from copper plumbing fittings and 1/2 inch copper water pipe
The vertical is loaded from the bottom with a coil wound on a previous block
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
RF Inductance Calculator Mean diameter of the air core coil, measured from conductor centre to conductor centre include the wire insulation thickness, if any
Voice Recorder Gestito dall'integrato in questione ed offre la possibilità di registrare più messaggi per una durata massima di un minuto con buona fedeltà di riproduzione