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796 links - and 17 categories

Buddipole as a J-Pole for 50 MHz - F5IRO
How to setup and configure the buddipole antenna in the J Pole mode for the ...

[ Hits: 303 | Votes: 0 | Rating: 0 ]

VHF Baluns: Fact and Fancy - GM3SEK
Our ideas about HF baluns have changed dramatically in recent years The focus today is ...

[ Hits: 283 | Votes: 0 | Rating: 0 ]
Baluns and common mode chokes - Dorenberg
Voltage baluns versus Current baluns When to use them differences and typical usage in feeding ...

[ Hits: 402 | Votes: 1 | Rating: 10 ]

137MHz Quadrifilar Antenna - Borre Ludvigsen
This version of the 137MHz quadrifilar antenna for APT reception is an adaptation from Bill ...

[ Hits: 233 | Votes: 3 | Rating: 7 ]

Narrow FM Contest 2020 - iw7dol
The ARI Club of Lecce Italy is proud to present the first HF FM contest ...

[ Hits: 82 | Votes: 8 | Rating: 8.63 ]

Data Sound Samples - G4WNC
This page contains links to a variety of data signals that have been specially recorded ...

[ Hits: 251 | Votes: 0 | Rating: 0 ]

Retevis - Retevis
Manufacturer of two way radios based in Shenzhen China Retevis produce commercial personal and amateur ...

[ Hits: 203 | Votes: 2 | Rating: 5 ]

FSK vs AFSK - IK3QAR
In the field of RTTY transmissions with audio boards you can transmit either in FSK ...

[ Hits: 156 | Votes: 0 | Rating: 0 ]
Digital Mode General Operating Tips - KC2RGW
Start by getting your audio levels sorted out Having your levels correct is critical to ...

[ Hits: 183 | Votes: 1 | Rating: 9 ]
Soundcard Levels for Digital Modes - KC2RGW
This article aims to help promote the proper configuration for having a clean signal on ...

[ Hits: 282 | Votes: 0 | Rating: 0 ]

Amateur Radio Microwave - Introduction - W6BY
Introdcution to Amateur Radio Microwave A 21 page presentation of ham radio microwaves concepts for ...

[ Hits: 418 | Votes: 0 | Rating: 0 ]

GPS time sync for modern digital modes - W0JD
As FT8 JT65 and JT9 are a time synchronized protocol one soon discovers that an ...

[ Hits: 447 | Votes: 0 | Rating: 0 ]

Yaesu FT-991 Memory Manager - f6ecn
Free memory management software for the Yaesu FT 991 and FT 991A models It runs ...

[ Hits: 1432 | Votes: 7 | Rating: 6.61 ]

Master Callsign Database Editor - UU0JC
Master Callsign Database Editor allows to create and modify Super Check Partial database files used ...

[ Hits: 249 | Votes: 0 | Rating: 0 ]

AirHamLog - Online Amateur Radio Logbook - JJ1SXC
AirHamLog is a modern logging software for amateur ham radio operators The software works inside ...

[ Hits: 549 | Votes: 1 | Rating: 10 ]
TyQSL - Online Logbook - TyQSL
TyQSL is a modern Logbook by Hams for Hams A Place for other hams to ...

[ Hits: 302 | Votes: 0 | Rating: 0 ]

sodiraSDR - Software Radio - Bernd Reiser
Software Defined Radio SDR for analog and digital modulation modes can demodulate AM envelope AM ...

[ Hits: 363 | Votes: 4 | Rating: 8.75 ]

Raspberry Pi and Automatic NOAA Satellite Reception - instructables
How to receive automatically NOAA wather satellite images with a Raspberry Pi and a RTL ...

[ Hits: 520 | Votes: 4 | Rating: 4.75 ]

Optocoupled Transceiver-PC Audio Isolator project - IK5NAX
An optocoupled audio interface between PC and Transceiver for digital modes The article includes full ...

[ Hits: 197 | Votes: 0 | Rating: 0 ]
Apple MacBook interface for digital modes - VK3ERW
How to make a custom Line In connector for apple macbook or iMac to connect ...

[ Hits: 135 | Votes: 0 | Rating: 0 ]