slim Jim and J Pole calculator

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slim Jim and J Pole calculator

slim Jim and J Pole calculator

Before we start, be prepared to experiment! The calculator will get you close or spot on if you’re lucky, but there are so many variables

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

PIC-Keyer

PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62

Radioassistance

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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

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

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