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336 links - and 1 categories

PA0RDT Active Antenna - G4AON
Active antennas can be very useful in particular they can help reduce local electrical noise ...

[ Hits: 309 | Votes: 0 | Rating: 0 ]

Indoor QRP HF Loop Antenna - DL4YHF
A home made magnetic loop for HF Bands This small and compact loop is designed ...

[ Hits: 323 | Votes: 1 | Rating: 10 ]

Portable NVIS Loop for 80m to 40m - Mark E. Cantrell (AE7TO)
A portable 15 5 foot diameter NVIS loop for 3 5 to 7 3 MHz ...

[ Hits: 368 | Votes: 0 | Rating: 0 ]

L.B. Cebik - W4RNL documents by ON5AU - ON5AU
A collection of antenna projects by W4RNL L B Cebik collected in a single link ...

[ Hits: 432 | Votes: 3 | Rating: 10 ]

An Automatic Antenna Tuner - OK2ZAR
An homemade antenna tuner project that should be small easy to build and cheap This ...

[ Hits: 493 | Votes: 3 | Rating: 9 ]

STAMPFL - HB9KOC
Stampfl ham electronics produces SDR Receiver kits and Morse Keys in small batches and in ...

[ Hits: 63 | Votes: 0 | Rating: 0 ]

A Visual Farnsworth On-Line CW Trainer - Seth Morabito
This trainer is a small personal project designed to play with learning morse code through ...

[ Hits: 287 | Votes: 2 | Rating: 10 ]

2.3GHz to 432MHz RX converter for FT-817 - DL5NEG
A very small receiver converter that can be plugged to the backside of the battery ...

[ Hits: 223 | Votes: 3 | Rating: 1.67 ]

Signal Stuff - Signal Stuff
Amateur radio parts and accessories online shop born to support hamstudy org and examtools org ...

[ Hits: 134 | Votes: 0 | Rating: 0 ]

Small Loop Antenna Calculator by KY8D - KY8D
A free Labview antenna calculator program This interesting calculator for small loop antennas can be ...

[ Hits: 341 | Votes: 4 | Rating: 6.5 ]

Morse Machine for MacOSX - Ward Cunningham
This free program teaches you to receive Morse code It starts with a few letters ...

[ Hits: 253 | Votes: 0 | Rating: 0 ]

GPS time - COAA
GPSTime is a small freeware applet that corrects your PC clock using GPS GPSTime reads ...

[ Hits: 642 | Votes: 0 | Rating: 0 ]

Mini Satellite-Antenna Rotator Mk2 - sarcnet
Design and construction of a mini satellite antenna rotator It used some small DC motors ...

[ Hits: 493 | Votes: 3 | Rating: 4 ]

Compact GO-BOX with a Raspberry Pi4, Elecraft KX2 and Kenwood TH-D74 - DL1GKK
A very compact and multifunctional digital amateur radio station for the radio operation at home ...

[ Hits: 324 | Votes: 2 | Rating: 9.5 ]

Micro24 Cigarette Pack SSB QRP Transceiver for 20m - DK7IH
The Micro24 is a ultra compact microsize QRP SSB transceiver for the 20 meters amateur ...

[ Hits: 1162 | Votes: 7 | Rating: 7.71 ]
The Micro20 III Pocket Size SSB RTX for 20m - DK7IH
DK7IH QRP transceiver for 14 MHz This small and compact home made transceiver with a ...

[ Hits: 252 | Votes: 3 | Rating: 10 ]
17m QRP SSB Transceiver - EA3ERT
18MHz QRP SSB transceiver PEREGRINO DX is a small portable QRPp project

[ Hits: 238 | Votes: 1 | Rating: 1 ]

Behringer HA400 Headphone Amplifier and RFI - WB5NHL
Removing disturbing RFI from the Behringer HA400 Headphone Amplifier using ferrites and capacitors soldered in ...

[ Hits: 121 | Votes: 2 | Rating: 5.5 ]

Guide to decode SSTV with RaspberryPi and RTL-SDR - IT9YBG
A tutorial on how to setup a receiver capable to decode SSTV signals with a ...

[ Hits: 333 | Votes: 1 | Rating: 1 ]
UHF Radio Chat with your Raspberry Pi - MagPi
Send and receive wireless messages adding a small 433MHz radio to your Raspberry Pi without ...

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