Bibanda per i 2metri e i 70cm

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Bibanda per i 2metri e i 70cm

Bibanda per i 2metri e i 70cm

Angolo di radiazione piuttosto alto, e' una antenna omnidirezionale utilizzabile anche per il traffico sui satelliti

post 06 Dec 2024

Antenna jpole Links →

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J-Pole antennas for 2m-40m with Wireman-cable
The picture shows the scheme of a J-Pole antenna. The high impedance feeding point of a lambda/2-wire

J-Pole Antennas

J-pole for VHF/UHF

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

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Amateur radio kits by Kanga US

Pcs Electronics

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1/4 Slopers 40/15M Band The antenna that most suited this application was a 40m band sloper as the guy wire to be used was slightly longer than a 1/4 wave length at 7 MHz and the top fed sloper was the most convenient installation having the least impact

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

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

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

Antenna splitter per VHF-UHF per quattro ricevitori

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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