La prima EH a toroidi su i 10 m

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La prima EH a toroidi su i 10 m

L'alimentazione al dipolo e' stata effettuata con una piattina da 300 Ohm

post 03 May 2024

La prima EH a toroidi su i 10 m

Antenna EH Links →

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Antenne corte per I 20 E 40m
La voglia di provarne una era tanta ma non avendo i condensatori variabili ad aria

EH antenna for 28MHz
antenna consists of the coil feeding two cylinders, for 28MHz

Eh 40mt
Antenna di nuova concezione, si basa sul teorema di John Poynting, fisico britannico insegnante universitario

EH Antenna
This experiment sets out to test the phase shift theory by measuring with E and H probes

Ferrite-shop

Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice

Kits and Components

Amateur radio kits by Kanga US

50MHz to 28MHz RX Converter

50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal

Antenna Morgain for 40-80m This antenna has in its main characteristic, the fact that with only 20 mt. the 80 meters of space occupied it

All band dipole Mk2 The All Band HF Doublet is often referred to as a random length dipole as it is generally as long as the available space within reason, but here are a couple of limitations to the ultimate dipole length

160M 1/4 Wave Vertical 160m vertical antenna project. It is 100' of Rohn 25G and a 20' aluminum stinger. The base is made out of four 6' power line insulators sandwiched between two Rohn base plates. 7/8' stainless bolts hold the assembly together. 32 radials 50' long and 30 radials 100'

DHD Double Half Delta This is a dhd double half delta in theory it should return a low signal but with a good s - n ratio roughly like a beverage

Visual CW Tuning Indicator Many transceivers set the CW transmit off-set equal to the set's sidetone frequency. But it was left to the operator how to match incoming signals to the sidetone for one-frequency QSOs an awkward and time-consuming procedure

Convert ADIF to Cabrillo Format

Convert ADIF to Cabrillo Format Have an ADIF file from amateur radio contesting, but the contest you want to enter wants a Cabrillo-formatted file? This is the tool that you need

trap-dipole-7-10-14-18-50-mhz

Trap Dipole 7, 10, 14, 18, 50 MHz Trap dipole 7-10-14-18-50mhz with balun coax cable

Diy Arduino CW keyer

Diy Arduino CW keyer I added code to read push-buttons on digital pins to trigger hard-coded messages like CQ and CQ SOTA