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264 links

Yagi antenna for 23 cm - VK1AD
Homebrew 23 cm 12 element Yagi Antenna based on the DL6WU design This articles include ...

[ Hits: 162 | Votes: 0 | Rating: 0 ]

9:1 Unun Impedance Transformer - VK1AD
A 9 1 unbalanced to unbalanced unun impedance transformer based on a published design by ...

[ Hits: 197 | Votes: 1 | Rating: 4 ]

20 / 40 Meter Short Coil Loaded Dipole Antenna - buildthings
Experimenting a 20 40 meter short coil loaded dipole antenna with the goal to keep ...

[ Hits: 358 | Votes: 3 | Rating: 8.67 ]

Testing End Fed Long Wire Antenna - VK1AD
Testing a 27 2 metre end fed long wire antenna used for SOTA activations placed ...

[ Hits: 169 | Votes: 0 | Rating: 0 ]

QRP End-Fed for 40m 20m 10m - VK3YY
This antenna build was strongly inspired by the well known PAR end fed antenna The ...

[ Hits: 170 | Votes: 3 | Rating: 9.67 ]

13cm Bi-Quad Antenna - VK1AD
A homebrew 2 4 GHz bi quad antenna for SOTA Includes several pictures about assembling ...

[ Hits: 119 | Votes: 1 | Rating: 10 ]

2m Lightweight Portable Dipole - VK1AD
Lightweight portable QRP 2m 70cm half wave dipole for SOTA or an emergency antenna for ...

[ Hits: 178 | Votes: 1 | Rating: 9 ]
144 MHz 2m dipole for SOTA - VK1AD
Simple 144 MHz 2 metre dipole for mounting on a telescopic fishing pole

[ Hits: 266 | Votes: 0 | Rating: 0 ]
Foldable Yagi Antenna - pd0g
A home made RDF 3 elements Yagi that can be used for fox hunting The ...

[ Hits: 238 | Votes: 1 | Rating: 10 ]
Portable VHF UHF Dipole Antenna - VK1NAM
A SOTA Lightweight Portable 2m 70cm Dipole Antenna Lightweight portable QRP 2m and 70cm half ...

[ Hits: 179 | Votes: 0 | Rating: 0 ]

RF Trap Resonant Frequency - VK1AD
RF traps for a lightweight 40 30 20 17 15m inverted V dipole antenna for ...

[ Hits: 200 | Votes: 0 | Rating: 0 ]

Learn Morse Code as a language - Duane Ausherman
A review of the most popular and traditional methods to learn morse conde and a ...

[ Hits: 157 | Votes: 0 | Rating: 0 ]

PD Powerbank for SOTA Radios - VK3YY
This post describes how the newish Power Delivery PD mode mobile powerbanks can be used ...

[ Hits: 144 | Votes: 0 | Rating: 0 ]

Receiving Cubesat Telemetry - F4GOH
How to easily receive and decode CubeSat telemetry

[ Hits: 148 | Votes: 0 | Rating: 0 ]

miniVNA PRO Installation Notes - buildthings
Notes on installing the miniVNA PRO software making a calibration standard a trap tuning loop ...

[ Hits: 173 | Votes: 0 | Rating: 0 ]

ICOM IC756 Fan Modification - buildthings
ICOM IC756 PRO II III PS125 Fan Modifications install an external cooling fan on the ...

[ Hits: 115 | Votes: 1 | Rating: 10 ]

FT-817 Batteries for Air Travel - VK3YY
Three cell Lipo batteries for the FT 817 work really well although not really sure ...

[ Hits: 141 | Votes: 0 | Rating: 0 ]

Yaesu VX-8DR and GPS - VK3YY
Adding a custom GPS receiver to the Yaesu VX-8DR

[ Hits: 72 | Votes: 1 | Rating: 10 ]

Arduino Nano and si5351 Digital VFO/BFO - VK3HN
A kit Digital VFO with pre soldered surface mount parts and burned in firmware a ...

[ Hits: 380 | Votes: 2 | Rating: 6 ]
Digital SWR and Power Meter - VK3HN
This module is an analogue and digital SWR and power meter monitor designed to replace ...

[ Hits: 272 | Votes: 0 | Rating: 0 ]