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The purpose of this web page is to try to investigate the ICOM IC-746PRO Dead TX problem reported by many radio amateurs through out the world; and unfortunately not properly taken care of by ICOM. If you are the owner of either the ICOM IC-746PRO or the IC-7400 you may already have experienced the Dead TX Issue. If not you may sooner or later.

Connection between your FT817 and PC

Clips of DX audio, some dating back to the late 70's to early 80's and up to March 2001

ICANN policies require registrars to verify domain registrant email addresses within 15 days of registration or transfer, a critical step for maintaining domain activity. Failure to complete this verification process results in the suspension of the domain, rendering the associated website inaccessible. This resource details the common reasons for such suspensions, including new registrations, changes to registrant email addresses, or domain transfers where verification was not completed. To reactivate a suspended domain, the registrant must click a verification link sent to their email address by the registrar. The process typically resolves the suspension within 30 minutes after successful verification. Registrants can request a resend of the verification email through their domain provider or use a trigger code if available. This ensures compliance with ICANN's _Registrant Verification Policy_ and restores website functionality.

This signal generator is intended for realignment of radio receivers

The PIC-MORSE is an electronic iambic keyer, integrating a generator of Morse code and a sidetone. It is built with a microcontroller PIC16C711. In French

Various tests and designs, with photos of home made EH Antennas,simple and networked, and also sone CAN Antennas.

Developed by IZ3MEZ offer a click and show WW locator information using Google Maps API interface.

2 meter & 70 centimeter mobile halo antenna project, by N6TWW Mike Fedler

Software for radiomonitoring, radio spectrum analysis. MDS is designed for the real time radio spectrum analysis. It performs real time activity analysis, signal search and collects spectrum data for post time analysis.

Ideal for QRP operations on 10 meters band in french

W1ZY's 40 Meter MOXON is the product of 9 months of experimentation. The final array is reversible and constructed from No. 12 insulated wire fed through two RF current baluns

Homebrew project of a vector network analyser VNA by N2PK

This VHF 145 MHz antenna is easy to build and with no radials. It shows equal gain of 5/8 lambda. It is light weight, you can hang it somewhere (on a tree may be) and work.

Freestanding aluminum towers manufacturer

by Maurius, ZR6YY

Expanding frequency coverage, transceiver Labtest by Christoph Petermann DF9CY

A broadband travelling wave dipole for HF bands, whose VSWR is less than 2:1 from 3 to 15 MHz and does not exceed 2.6 to 1 from 2.3 to at least 30 MHz

The Super J Pole antenna is a co-linear vertical consisting of a number of half wave length vertical elements separated with half-wave length stubs (Tuning stub) feed with a folded matching stub by vk6ysf

Theory, Modeling, and Practical Applications By W5JCK, presentation in PDF File. This presentation focuses on Near-Vertical Incidence Skywave (NVIS) antennas, which are crucial for short-range radio communications, particularly in military and emergency contexts. It explores NVIS theory, antenna models, and installation criteria while debunking common myths about reflectors. Key topics include usable frequency bands, optimal installation heights, and the impact of soil quality on performance. The presentation outlines the best bands for daytime and nighttime use, emphasizing the importance of understanding propagation characteristics to enhance communication effectiveness within 200 to 300 miles.

The free pdf book is a compilation of articles congenial to QRP published on 2003- 2005 years at free e- magazine AntenTop. 17 Mb pdf file.

APRSISCE/32 is an Automatic Packet Reporting System (APRS) program, primarily intended for Windows and Windows Mobile (CE), although it will run on Linux and Mac OS under wine. Offer enhanced messaging, announcement support via ANSRVR, and QRU for object query support, can run as a highly configurable Digipeater

The document details the optimization and construction of the _Maria Maluca_ antenna, a compact 6-band (20m-6m) directional beam. It presents a comparative analysis of shortwave antenna principles, highlighting the efficiency gains achieved by using an open feeder line and tuner as a resonant unit, contrasting this with the losses associated with traps or capacitive loads in multiband antennas. The resource specifically revisits an older South American 2-element design for 10, 15, and 20 meters, applying modern NEC-based software to develop a six-band version. Performance data is meticulously tabulated, showing impedance, free space gain, gain at 12m height, elevation angle, and front-to-back (F/B) ratio for each band from 20m through 6m. For instance, on 15m, the antenna achieves 5.1 dBd free space gain and 13.72 dB F/B ratio. The construction section provides practical guidance on element assembly using aluminum pipes and hose clamps, detailing the use of a heavy-duty glass fiber reinforced polyamide rod for electrical separation and bending strength. It also specifies the use of 450-ohm _Wireman_ line CQ 552 for the transmission line. The document includes diagrams for rod fixing, an air-wound balun, and a vertical elevation diagram for the 15m band, illustrating its DX qualification. It also discusses the antenna's suitability for portable and expedition operations, noting its compact transport dimensions (max 1.50m length, 12 lb weight) and quick assembly time (under 15 minutes). The author, Dipl.Ing. Helmut Oeller, DC6NY, is identified as a source for material kits.

HF Communications Analysis and Prediction Tools for Amateur Radio and communications professionals. Featuring: WinCAP Wizard, Beacon-Time Wizard, GeoAlert-Extreme Wizard, ID Wizard, KTS Clock Screen Saver, NERDAlert 2000

Commercial interactive radio control software tun under Windows Controls up to 16 Devices simultaneously with audio, in a client server mode, support for WAVECOM decoders and ROHDE & SCHWARZ receivers

Interesting variant on the 3-element Yagi. Lightweight fiberglass (or similar) tubes supporting a wire structure of elements

ScanOhio Marine Radio frequencies

A Compact size 80-10 m field day antenna offering a Low angle of radiation and very easy to build and set up

KC22TX receiving loop antenna for 160 meter band

This software predicts future passes for amateur radio satellites for a specified location and period of time. It runs on the Android operating system

Free program that interfaces most ICOM radios with the ILG radio frequencies database and lets you click a station in the database to tune your radio to the station, or scan the list looking for stations that are on the air.

OZ1BXM 70 MHz horizontal dipole antenna

shows time zones around the world a well as the time at locations of your choice.

The Regen Shortwave Receiver using Manhattan-style ugly construction techniques.

An RF power amplifier, providing 7 Watts output in HF bands, schematic by ON6MU

13.8 V / 15 A from a PC Power Supply in German

Some interesting mods for the 847

Dynamic Map Progam with 34 maps, 442 overlays, and realtime position/locator info. Online Demo available. 0-59c per map.

Manufacturer of Fibreglass Whip Antennas, Low and mediun Frequency, HF and VHF Antennas Specialized in the design and manufacturing of a full range of Beacon (MF), AM Broadcasting 540 - 1700 KHz, HF 1.7 to 30 MHz, VHF 30 to 156 MHz and UHF 200 to 500 MHz antennas.

HF QSO/QSL/Award managment, ADIF Import/Export, full version free to everybody. Requires Access 97 or Access 2000 (with JPEG and TIFF filter installed), screen resolution 800x600/1024x768

Comparison chart between Cushcraft R8, Hy-Gain AV640 , Butternut HF6V, Gap Titan and Eco 7+

Pictures and calculated values for this home made magnetic loop antenna for the 160 meters band by HB9MTN

PC based Soundcard Oscilloscope software that receives its data from the Soundcard with 44.1kHz and 16 Bit resolution.

Thames Estuary DX Group based in SE England. Mods, links and radio contests throughout the year.

Australia's busiest radio related classifieds site. Free instantly online adverts from the VK/ZL area.

A few images to use as a desktop background.

A 144 MHz six element yagi beam antenna plan

The Moxon Rectangle is growing in popularity as a compact 2-element array that approaches a full-size 2-element in gain but with a far superior front-to-back ratio and a direct match for the standard 50-Ohm coaxial cable.

Ham Radio, SWL and electronic kit manufacturers

A moxon antenna for UHF in french