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Building a 1:1 balun, aka un-un, with an Amidon Ferrite toroid core T 200

QSL Information Pages QIP for BC-DXers - more than 50000 qsl logs from more than 10000 BC-DX radio stations

Recepteur decametrique 3 - 30 MHz Detection classique et SDR

K4JRG GAP titan dx specifications

This is the official web page of the #cq11 IRC channel on Othernet Network. It was created to help users on 11m. band.

A dipole antenna for 7 MHz support for this antenna is fiberglass military mast

This is an internet resource for those interested in guitar amplifiers, vacuum tubes, and design tools such as SPICE modelling.

With VHF Hamradio Software

The GM4JJJ VHF and EME pages document David's extensive work in Earth-Moon-Earth (EME) communication, specifically on the 144 MHz band, and his involvement in amateur radio astronomy. The resource details his station setup and operational experiences, providing insights into the technical challenges and rewards of bouncing signals off the moon. It offers a glimpse into the specialized equipment and techniques required for successful EME contacts, a niche but highly rewarding aspect of amateur radio. David's content shares practical applications and field results from his EME endeavors, which can be particularly useful for hams contemplating or actively pursuing moonbounce operations. The information, while not a step-by-step guide, implicitly compares the complexities of EME with more conventional VHF/UHF operations, highlighting the significant power and antenna gain necessary to overcome path losses. This resource serves as a testament to the advanced capabilities achievable in amateur radio.

A comprehensive listing of AM Stereo radio stations in North America with listening tips, news, AM mono to stereo radio conversion information, sources of AM Stereo receivers and a history of AM Stereo broadcasting.

OE-information, firsts list, 250+ links to 6m pages and resources by OE4WHG

V-U-SHF site

Yaesu FT-920 unofficial web site at wm7d

Bandplans, Beacons and many useful info on VHF operations

A Weather ATV Repeater project I am currnetly working on.

Pages fully dedicated to beginners guides, includes an interesting sample of a CW QSO, and a list of frequencies to practise morse code, useful for beginners,

Tuning Antenna Traps without a Grid Dip Oscillator, using a bit of initiative and some standard equipment a ham should have in the shack.

Relay substitution tutorial, power amplifier tuning and Technical Characteristics

The DK5YA Vhfdx Site is dedicated to the serious VHFDXer, serving the Web for more than 5 years for all of those working Aurora, Meteorscatter, FAI, EME, Tropo, TEP etc. on 50 MHZ and up.

The 2000 CQ WW Multi-Multi operation by the GM0B contest group from Benbecula, Outer Hebrides, Scotland, is documented, providing insights into a significant **DX contest** effort. This resource outlines the station setup, operational strategies, and team composition for a large-scale, multi-operator, multi-transmitter entry. It details the logistical challenges and technical solutions employed to achieve competitive results from a remote island location, a common scenario for **DXpedition**-style contest operations. The page offers a glimpse into the practical application of contest rules and the coordination required for a successful multi-operator effort. It serves as a historical record of the GM0B team's performance in a major international contest, allowing other contesters to compare operational approaches and understand the scale of such an undertaking. The information can be useful for those planning similar contest expeditions or studying past contest strategies.

The following table is adapted from the International Telecommunications Union Radio Regulations Appendix 18, including changes adopted by the 2012 World Radio Conference.

US coast guard frequency list

How to operate Instant Tune and Instant Track or DOS Programs on a last generation computer in french and english by ON6WG F5VIF

Bencher Tech Notes: Selecting your next yagi

Theory of the ferrite rod antenna

A web site dedicated to collecting and restoring antique crosley tube raidos. pictures and descriptions of antique crosley tube radios from the twentiew, thirties, forties, and fifties. radio advertising from the twenties, thirties, forties, and fifties. tube box art. links to many antique radio related sites.

A page dedicated to Yaesu FL-2100Z linear amplifier for amateur hf bands

Concentrating on VHF DX, Aurora, Meteorscatter, TEP, Sporadic E, EME, VHF DXpeditions. Daily updates.

CQ Milano, the dx NewsLetter edited by Sezione A.R.I. Milano.

FM & SWL, broadcasting, media, FMDX,frequency lists, ham adio

A home made project to reduce noises from lower bands, an X-Phase QRM Eliminator project that can help you a lot

Operating a modern amateur radio station often involves integrating various software tools, and LogHX aims to provide a unified environment for Windows users. The software facilitates comprehensive QSO accounting, allowing operators to track contacts and manage both e-QSL and traditional paper QSL exchanges, including via QSL managers or direct methods. It also offers real-time QSO preview and integrates with popular callbook data for quick lookups. LogHX supports various logbook database searches and maintains statistics for numerous awards, a critical feature for serious DXers and contesters. The program handles logbook import and export in widely used formats such as _ADIF_ and _Cabrillo_, ensuring compatibility with other logging applications. Furthermore, it interoperates with Telnet clusters and third-party ham radio software, enhancing its utility in a networked shack environment. Key functionalities include antenna rotator control, editable macros for PSK, RTTY, CW, and SSB operations, and CAT control via _OmniRig_ or direct interfaces. Embedded modules like MMVari, MMTTY, and CWServer streamline digital mode operations, while its multi-window structure allows users to customize their screen layout, preserving valuable monitor space.

22 Different Wire Antennas for the 160 Meter Band, Random Length Radiator Wire, delta loop, loop antennas, off-centered antennas, sloper, dipoles, Z antenna, Zepp and Clothesline Antennas

WA0SXV article on the ICOM IC 756PRO based on his own experience

This simple antenna modelling windows software by F5IMV wil calculate a dipole,extended double Zepp,G5RV, ZS6BKW and many other wire antennas by F5IMV

Lot's of vintage radios from 30's

Modifications to the Tigertronics Signalink USB sound card

Radio Strike from sicily

Octagonal magentic loop antennas that work from 20 to 10 meters with pictures and efficiency reports by G1KEA

The Mobile-Portable Reflector serves as a dedicated discussion platform for amateur radio operators interested in mobile and portable operations. It facilitates the exchange of information and answers questions specifically related to operating amateur radio from vehicles, temporary field locations, or while walking. The platform is not intended for general amateur radio discussions; its scope is strictly limited to mobile-portable topics. Subscribers can access prior postings to review historical conversations and solutions. The list is administered by _dick at k7vc.com_ and operates on Mailman version _2.1.12_. Subscription requires email confirmation and offers optional privacy password protection, with an option to receive daily batched emails.

T93Y WEB page with details from Contest DXpeditions to Cyprus and United Arab Emirates

RA0FF contest Log search Since 1995. UE0FFF log, First DXpedition to Moneron Isl - RK0FWL/p, contest links.

About operating the AO-27 satellite

A resource for Collectors and Restorers of Vintage Electronic Equipment.

Maintained by Larry Tree Tyree N6TR

Remote usage solution for Kenwood TS-480

What's all this stuff about LowFERs, MedFERs and HiFERs? What Is 'Part 15?'

SW Radio Africa is the independent voice of Zimbabwe broadcasting on the short wave