turn

124 links

2m Quad Turnstile Antenna
The loops are made of 10 mm round aluminum tube No bending pliers was used ...

[ Hits: 207 | Votes: 0 | Rating: 0 ]

Six Meter Quad Turnstile Antenna - VK3DIP
Simple 6 Metre DX Antenna based on an article by LB Cebick in QST May ...

[ Hits: 702 | Votes: 2 | Rating: 9.5 ]
6 Meter Quad Turnstile Antenna - high on solder
A quad turnstile consists of two cubical quad loops oriented in a diamond configuration and ...

[ Hits: 371 | Votes: 1 | Rating: 10 ]

The Antenna Torque Calculator - Matteo Bavecchi
This unique online tool helps Ham Radio operators to choose the right rotator for medium ...

[ Hits: 184 | Votes: 1 | Rating: 1 ]

Making a good balun - OZ1CX
The normal way to make a good balun is to wind a core with a ...

[ Hits: 499 | Votes: 0 | Rating: 0 ]
DIY isolation transformers - K2AV
Article about isolation transformer construction to perform optimal impedance matching Winding the FCP isolation transformer ...

[ Hits: 317 | Votes: 0 | Rating: 0 ]

End-Fed HalfWave Matching Unit for SOTA operations - VK3IL
An end fed half wave antenna matching unit made of 3 24 turns ratio on ...

[ Hits: 259 | Votes: 0 | Rating: 0 ]
The End-Fed Half-Wave Antenna - Presentation - K1RF
A very well done presentation about End Fed Half Wave antennas This PDF document contains ...

[ Hits: 406 | Votes: 3 | Rating: 8.67 ]

Magnetic Loop Antennas - ON4CEQ
A complete guide to magnetic loop antenna construction with analysis of multi turn and single ...

[ Hits: 1253 | Votes: 1 | Rating: 10 ]

DIY Dual Band 144-440 MHz vertical antenna - linuxwolfpack
A homemade VHF UHF vertical antenna made essentially with RG58 coax cable with a 9 ...

[ Hits: 1378 | Votes: 14 | Rating: 5.5 ]

High Altitude Ballooning, From The Ground Up (and back again) - dave akerman
High Altitude Ballooning makes for a challenging project that sometimes turns into an engrossing hobby ...

[ Hits: 136 | Votes: 1 | Rating: 10 ]

Icom IC-2720H One Page Operating Guide - 2720H User
An operating guide for the com IC 2720H VHF UHF Radio includes Turning the power ...

[ Hits: 412 | Votes: 0 | Rating: 0 ]

mini Ring-Core-Calculator - Calculate windings on ferrite cores - DG0KW
The program can be used to calculate inductors coils and their number of turns on ...

[ Hits: 400 | Votes: 1 | Rating: 1 ]
Online Helical Coil Calculator - deepfriedneon
This online calculator will give as output the Inductance L of a coil including the ...

[ Hits: 342 | Votes: 7 | Rating: 5.71 ]
Online Coil Inductance Calculator - 66pacific
This online calculator will return the inductance of a coil It will ask you the ...

[ Hits: 104 | Votes: 0 | Rating: 0 ]
One-turn loop inductance Online Calculator - in3otd
The high frequency inductance of single turn loops of various shapes made of round wire ...

[ Hits: 122 | Votes: 1 | Rating: 10 ]

RV marine battery as power source - W1MST
Turning an RV marine battery into a massive 12-volt emergency power source

[ Hits: 233 | Votes: 2 | Rating: 9 ]

How to convert Server Power Supplies - rcgroups
The practice of converting computer server power supplies to make a very high quality high ...

[ Hits: 823 | Votes: 0 | Rating: 0 ]

How to make a MMDVM Digital Repeater - San Antonio Digital Radio
The MMDVM is a device that interfaces PC to radios can be used with a ...

[ Hits: 291 | Votes: 1 | Rating: 10 ]

Return Loss Bridge - K8IQY
This Return Loss Bridge has been designed to characterize the input impedance of a receive ...

[ Hits: 322 | Votes: 2 | Rating: 1 ]