Hits
45-70 MHz aerials for TV DX
post 05 Dec 2024
Antenna 6 meter Links →
6m 50Mhz Long wire antenna
From the transmitter or transceiver, you go to an antenna tuner via coaxial cable. The tuner is placed at the base of the antenna, not at your operating position
6m beam antennas
This type of antenna is a rather handsome one, so you can use it for portable operation
A Hairpin match for the 5 ele Tonna for 50 MHz
By changing the impedance of the driven element to 200 Ohms, it is possible to use a 1:4 halfwave balun to match the antenna properly and to make sure that the symmetry is also properly taken care of
A portable three element 6M yagi
settled for 12.5mm round hollow tubing in 2M lengths, for the main elements, with the next smaller size 10mm
102
From the transmitter or transceiver, you go to an antenna tuner via coaxial cable. The tuner is placed at the base of the antenna, not at your operating position
This type of antenna is a rather handsome one, so you can use it for portable operation
By changing the impedance of the driven element to 200 Ohms, it is possible to use a 1:4 halfwave balun to match the antenna properly and to make sure that the symmetry is also properly taken care of
settled for 12.5mm round hollow tubing in 2M lengths, for the main elements, with the next smaller size 10mm
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