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132 links

UniBalun: Lightweight Balun/UnUn PCB for QRP Radios (1:1, 1:4, 1:49) - DG1JAN
The UniBalun is a PCB for building a lightweight antenna transformer Balun or impedance converter ...

[ Hits: 63 | Votes: 1 | Rating: 1 ]

HF Receive Antenna - K0EMT
This page describes a couple of parts box medicine bottle antennas that you can build ...

[ Hits: 192 | Votes: 2 | Rating: 3 ]

Enhancing Icom IC-7300 RX Antenna - IW0FFK
Despite the model limitations such as a single TXRX antenna connector the author shares a ...

[ Hits: 189 | Votes: 1 | Rating: 10 ]

USB-C charging for Handheld Radio Transceivers - Bryan Cockfield
The article highlights the common absence of modern USB C ports on handheld ham radios ...

[ Hits: 143 | Votes: 1 | Rating: 10 ]

Everything You Need To Know About Coaxial Cable - RS Online
An technical page on coaxial cables that describes what coax cables are how do coax ...

[ Hits: 158 | Votes: 0 | Rating: 0 ]
N-Type Connector on Cellflex Cable - KK4ICE
Installation of Female N-Type Connector on 1-5/8 RFS Cellflex Cable

[ Hits: 96 | Votes: 2 | Rating: 6.5 ]
Understanding Impacts of 75-ohm Devices in 50-ohm Systems - KA7OEI
This article explores the implications of using 75 ohm devices common in TV setups within ...

[ Hits: 151 | Votes: 2 | Rating: 9.5 ]

Dummy Load Construction - N6DLH
This will document a custom version of the K4EAA Dummy load done using 20 1K ...

[ Hits: 188 | Votes: 1 | Rating: 5 ]

Adapting Standard Headset Mic for Yaesu FT-8900 - WW8TF
Explore the process of creating a custom adapter for the Yaesu FT 8900 radio with ...

[ Hits: 45 | Votes: 1 | Rating: 1 ]

Miniature CI-V for Icom Radios - IW7EHC
With some fantasy the circuit can be easily assembled on a small scrap of pre ...

[ Hits: 117 | Votes: 0 | Rating: 0 ]
Baofeng UV5R TRRS Adapter - johnboiles
A tiny board which allows a smartphone or similiar device to connect to the Baofeng ...

[ Hits: 92 | Votes: 0 | Rating: 0 ]

Transverter for 50 70 28 MHz - YO4HFU
This multiband transverter project features power output at 13 8V 50MHz 15W 70MHz 10W second ...

[ Hits: 153 | Votes: 1 | Rating: 10 ]