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794 links - and 17 categories

Normal Mode Helix Antennas for HF - Normal Mode Helix Antennas for HF Mobile
[ Hits: 1595 | Votes: 4 | Rating: 3.75 ]

Ground Plane Verticals - Ground Plane antennas and common mode
[ Hits: 940 | Votes: 0 | Rating: 0 ]

Modern Military Radios and the Ham Operator - What Military Configurations offer as Diversification to our Hobby
[ Hits: 1020 | Votes: 0 | Rating: 0 ]

An Introduction to Datamodes - ARAC guide to datamodes
[ Hits: 404 | Votes: 0 | Rating: 0 ]

Amtor Digital Mode - About AMTOR Amateur Teleprinting Over Radio
[ Hits: 326 | Votes: 1 | Rating: 1 ]
Amtor mode - Information on Amtor mode with protocol details
[ Hits: 325 | Votes: 0 | Rating: 0 ]

Audio levels for digital modes - Setting audio levels for digital modes on FM
[ Hits: 373 | Votes: 0 | Rating: 0 ]

Image Modes - Before the advent of digital transmission modes, several analog schemes were developed to transmit images or image-like information on the Amateur Radio bands.
[ Hits: 393 | Votes: 0 | Rating: 0 ]
Ham Radio Digital Modes Information - WB8NUT digital modes information page with various digital modes description and sound samples
[ Hits: 462 | Votes: 4 | Rating: 8 ]

Iambic Keying - Iambic Keying, Debunking the Myth by Marshall G. Emm, N1FN. A keying system controls transmitter activation, ranging from basic switches to electronic keyers that generate Morse code based on paddle input. Iambic keyers, introduced in the late 1950s, respond to simultaneous paddle closures with alternating dots and dashes. Despite touted efficiency, actual benefits are modest, offering about a 5% improvement in keystrokes, diminishing at higher speeds. Iambic keying's practical value is limited and may restrict sending speeds.
[ Hits: 627 | Votes: 0 | Rating: 0 ]
The Advantages of CW - CW is not just another mode like SSB, FM, PSK-31, etc. It is a unique mode that has alot of advantages.
[ Hits: 560 | Votes: 0 | Rating: 0 ]

IN3ECI - QRP Operations - Italian station operating mostly in QRP Mode, contain some interesting QRP projects for portable antennas and antenna mounts.
[ Hits: 458 | Votes: 2 | Rating: 9 ]

Getting started on data modes with the Elecraft K2 - You do not need an expensive or complicated interface to get started using psk31 and other data modes with an elecraft k2 transceiver.
[ Hits: 324 | Votes: 1 | Rating: 1 ]

DXLog.net - DXLog.net is hamradio contest logging software for Windows. Currently supporting 200+ different contests and most popular digital modes
[ Hits: 1319 | Votes: 5 | Rating: 8.8 ]

OscarDelta IP Over AX.25 - This is a packet radio software developed for amateur radio operators to provide IP communications. You can chat, send/receive e-mail, surf the web and so on via radio depending on your bandwidth. You don't need a TNC. You might have all of TNC features via SoundCard using SoundModem.
[ Hits: 1698 | Votes: 23 | Rating: 8.87 ]

MeteoFax32 - Weatherfax decoding software with modem
[ Hits: 3268 | Votes: 8 | Rating: 8.87 ]

OZ2M - Next generation beacon - Next Generation Beacon hardware platform encompasses both analog and digital modes, i.e. CW FSK and MGM in a mixed mode configuration. The advantage of the mixed mode is that humans can decode the CW FSK by ear and the MGM can be decoded by computers way below what is audible. Therefore the MGM can be used for pre-human-conditions or early warning monitoring.
[ Hits: 426 | Votes: 3 | Rating: 10 ]

DTMF Functions - In Sysop mode, EchoLink can be configured to accept commands through the local receiver using DTMF tones
[ Hits: 251 | Votes: 0 | Rating: 0 ]

What cause key clicks - Clicks are most problematic when we try to copy weak signals next to moderately strong signals. How to recognize them, and how to identify clicks problems
[ Hits: 282 | Votes: 0 | Rating: 0 ]