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The web page provides detailed information on a portable 10/20/40 meter vertical antenna designed for mobile operations, including modifications for 20 and 40 meters. It includes images and descriptions of the antenna setup in a car. The content is useful for amateur radio operators looking to enhance their mobile communication capabilities.

SSTV freeware software for Windows by Mako JE3HHT. MMSTV is a free software application designed for transmitting and receiving SSTV (Slow Scan Television) images over HF bands. It allows radio amateurs to share still pictures using sound-card interfaces and a transceiver. The program supports popular SSTV modes (Martin, Scottie, Robot, etc.), real-time RX/TX monitoring, and easy image editing. Its user-friendly interface and reliability make MMSTV a favorite choice among ham operators worldwide. Ideal for showcasing QSL cards, shack photos, or technical diagrams over the ai An excellent SSTV program that requires only a computer with soundcard, no expensive TNC required. Works on all Windows version including Windows XP, Vista and Windows 7.

HamAlyzer is a spectrum analyzer made just for hams, save plot images easily for emailing, monogramed with your call sign. HamAlyzer looks no more supported, here 2.8 trial version available. Download hamalyzer

A large collection of maps of each dxcc country with general information, banknotes and coins, satellite images, flags and national information where available by SP6NVK

Images and technical details of thousands of transceivers, cb radios, rotators, rf amplifiers scanners and accessories, by SM0OFV

Complete 144/50 MHz transverter with GaAs Fet LNA and 400 mW out. No printed circuit board. Schematics and images by Christoph Petermann DF9CY

SSTV program for the Linux platform with several functions written by ON1MH Johan. QSSTV is a Linux-based program for receiving and transmitting SSTV (Slow Scan Television) and HAMDRM (Digital SSTV) signals, compatible with MMSSTV and EasyPal. Key features include support for narrow band SSTV modes, gallery functionality for viewing received/transmitted images, repeater capabilities for both SSTV and DRM modes, PulseAudio direct interface, and CAT radio control. The software includes waterfall visualization, hybrid mode operation, and template editing features. QSSTV requires Qt5 and several other libraries for compilation, and operates with a three-window interface for receive, transmit, and gallery functions.

Manual for R7, 10 12 15 16 20 30 40 meters band antenna

FT857 and FT897 Interface PCB and schematic

A large jpeg DX World map that include ITU Zones, grid squares and prefixes. This high-resolution DX World Map is an essential tool for amateur radio operators. It clearly displays ITU zones, CQ zones, grid squares (Maidenhead Locator), and DXCC prefixes, helping you to plan QSOs, track propagation paths, and participate in global contests. Whether you are a seasoned DXer or a beginner, this map provides a clear, detailed view of the radio world, improving your station's efficiency and geographic awareness. Available in JPEG format, it's perfect for display

A Google query for radio clip art

SolarHam is a website all about the Sun and how it affects Earth. This site is routinely updated with breaking news, sometimes hours before other Space News websites. You can trust SolarHam.com for the most up to date and accurate solar information on the net. SolarHam is a trusted and easy-to-use website for anyone interested in solar activity and space weather. It gives daily updates on <b>solar flares</b>, sunspots, geomagnetic storms, and radio blackouts. The site uses data from NOAA and NASA to show what is happening on the Sun and how it may affect radio signals on Earth. Charts and images are clear, and reports are updated often. Many amateur radio operators use SolarHam.net to check band conditions and aurora forecasts before operating. The site is fast, well organized, and focused on the needs of the radio community. Whether you are a beginner or an experienced ham, SolarHam.net is a helpful tool for understanding space weather and its impact on radio communications.

TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.

Map of USA Districts

Stone vintage radio describes early radio from marconi to the 1960s. its covers antique radio, wireless, tubes, valves, crystal sets, and battery radios. included in the virtual museum are hundreds of pictures, images, and descriptions of antique radios, articles, faq, sell, and buy a radio.

The FL-2100Z amplifier referenced in the following images is the 6-Band model covering 10m thru 160m (no WARC bands) and not the 9-Band version that included the WARC bands. Modifications, schematics and manual

A few images to use as a desktop background.

A free windows SSTV receiving program specially designed for SWLers. This sstv decoder does not support SSTV TX. Automatic saving of images, based on MMSTV enigne, support multiple sound cards and advanced quality settings. This software is just capable to decode SSTV a good choice if you need to receive slow scan TV.

Images and Radio Shack composition

If you are interested in the environment, the weather and other natural phenomena then there is something magical about being able to see pictures of the earth from space just as it is right this minute. One way you can do this is by receiving images from weather satellites.

Images of VHF UHF antennas

The TS850s connector pinouts for Mic,acc2, acc1 and remote connector

HF Weather Fax lets you receive marine weather radiofascimile transmissions on your iPad, iPhone and iPod Touch. Just connect it to a shortwave radio tune in a weather fax frequency, and watch the images come in.

General purpose image display and analysis program with special features for analyzing satellite images

A J-pole antenna plan made using a half inch copper tubing

Audio and waterfall images of some sounds found on the RF spectrum

AirNav live. See live images from my AirNav Radar box here in Clacton on Sea, Essex. Also full setup details.

A trapped dipole antenna based on the orignal W3DZZ antenna design resonating on 80 40 20 15 10 meters

Custom Design T-Shirt with No Minimum order (you can buy just 1) and NO Setup Fee. Will transfer your Favorite Images from JPEG's and E-mail attachments and from photo prints to Custom T-shirts with unbelievable Crispiness and Clarity of true Color Reproduction. Our image transfer paper is 11.5" x 8" heavy duty industrial grade.

Ham Radio & NOAA Apt Weather Satellite blog. All weather satellite NOAA APT images are decoded with homebrew receiver. Setup using homebrew Turnstile Cross Dipole antenna, P-3 500MHZ PC with WIN-XP & WXTOIMG program.

Explore this high-resolution ITU Zones Map, a critical reference resource for amateur radio operators, international broadcasters, and telecommunications engineers. Originally established by the International Telecommunication Union – Radiocommunication Sector (ITU-R) Broadcasting Services Division (1999), this chart accurately divides the globe into 90 specific CIRAF zones. This authoritative visual guide is indispensable for planning High Frequency (HF) radio propagation, scheduling international broadcasts, and verifying locations for radio contests and awards. Distinct from the 40 CQ Zones, the ITU zoning system provides the official administrative framework used for global frequency management. This digitally enhanced version ensures maximum clarity of zone boundaries and numbering (e.g., Zone 28 for Central Europe), making it an essential tool for technical accuracy in logbooks and station management. It serves as a trustworthy standard for educators, hobbyists, and industry professionals alike.

Presentation by AC8GY on classic G5RV Antennas and other horizontal dipoles, the popular G5RV, ZS6BKW, dipole fan, Alpha-Delta DX-CC and a trap dipole are modeled in EZNEC and compared.

How to receive images from orbiting noaa weather satellites using simple receiving equipment and a computer by G4ILO

Picture taken from official manual with notes on tuning stubs for each band

Specifications, images and product reviews for the yaesu ft-450 (at) mobile amateur transceiver

The next generation of satellite tracking software for Windows. Free to use, need licence to save images and sessions.

Magnetogram, Dopplergram Intensitygram by Mt. Wilson 150-Foot Tower Data Images

How to build a QFH (Quadrifilar Helix Antenna) to download images from weather satellites. A complete tutorial on assembling QFH antenna at home with simple and common tools

YAESU FT-1000MP Mark V ESSB Modifications pdf file

Homemade moxon antenna for the 40 meter band. This article is not very descriptive but includes some very detailed images

Around 200 electronic circuits in pdf format or images, There are also over 1000 links to useful electronics, freeware, open source websites. There are some 100 useful documents, software and pcbs too. Mainly industrial electronics, instrumentation. Covers Various aspects of electronics and basics of circuit design.

This wiki is intended to help identify radio signals through example sounds and waterfall images. Most signals are received and recorded using a software defined radio

Complete guide to receive weather satelite images with a RTL SDR dongle and free software

Sharing the stories of Pacific radio, an on-line archive and resource. Includes searchable databases, articles, images, store, newsletter, research, advocacy, publishing, radio heritage documentary production and more. Free membership worldwide.

This project is a portable device used to automatically point a directional antenna towards an orbiting satellite. It takes all the effort out of little kids holding the antenna and figuring out where to point it. It allows students to talk through Amateur Radio satellites or download weather satellite images.

How to receive automatically NOAA wather satellite images with a Raspberry Pi and a RTL SDR. This project requires a Raspberry Pi 3 Model B a common NooElec SDR Dongle and a QFH Antenna in the attic. Article explains how to setup and configure software but no instructions on antenna.

G0HWC details and HTML files with images to build yourself a Ham Radio website. Get your Ham Web Site on the internet for free

A nice presentation for beginners by Radio Club of Tacoma

Setting up the necessary Software for the Softrock 6.1 is a bit tricky, images and screenshots hopefully bring some light into the dark

SSTV images on this page are taken live from other SSTV sites round the world.