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Antennas, base mobile scanner and vhf antenna, coax cables, coax switch, Lightning Arrestor, mounts, power supply, speakers and wattmeters

A woktenna. The collector and stand collapses in seconds, is aimable, portable, and gave terrific gain. This is a great little setup for a laptop on the go trying to get the distant wifi access.

Download the PDF with USA Amateur radio HF band plan and common country prefixes updated in 2008 by Icom

"Sells high voltage film and electrolytic capacitors for antique tube radios. Carries 630 volt metal-film, metallized and mylar film capacitors as well as electrolytics. Also has ""capacitor"" tips for antique radio restorations."

What is the best WiFi antenna for me? Looking for a range extender antenna for your WiFi system. This article will help in choosing the correct antenna for your system

A 6 meters band amplifier width schematics

OZ2OE Technical pages, a 3 element 28 MHz light weight Yagi for 10 meters band

Manufacturer of communications antennas, bandpass filters, RF combiners, receiver multicouplers, diplexers, duplexers, RF connectors, RF circulators, RF isolators, RF couplers and SWR meters

RTTY Tutorial by K4WW, foundamentals, FSK and AFSK

Schematics and plans to build a custom CAT and audio pc interface

Mobile vertical antenna for 144 MHz suitable for satellite signals reception by K5OE

Isotron antennas are low-profile HF antennas. If you need a small antenna, then an Isotron may be the answer. Bilal isotron antennas.

Manuals of US Military radio equipment

A dead easy 50 mhz preamp by VK3CJS

Argo, developed by I2PHD and IK2CZL, functions as a specialized freeware viewer for various weak signal modes, specifically MTHELL, Slow CW, QRSS, and DFCW. It processes audio input to visualize and decode these extremely low-speed transmissions, which are often imperceptible to the human ear. The software's capabilities extend to EME (Earth-Moon-Earth) operations, where its sensitivity to weak signals is particularly advantageous for detecting faint lunar reflections. The application provides a visual representation of the received signals, allowing operators to discern patterns and decode information from signals buried deep within the noise floor. Its design focuses on extracting data from signals with very narrow bandwidths and long integration times, characteristic of QRSS and similar modes. This tool is distinctively useful for experimenters and DXers engaged in challenging weak signal communication, offering a dedicated platform for modes not typically supported by general-purpose digital mode software. Its specialized focus on _Slow CW_ and _MTHELL_ makes it a niche but effective utility for specific operating scenarios.

X-Beam antenna by K0EMT for 50 Mhz and VHF UHF bands

Macintosh automatic position reporting system, developed by Bob Bruninga, WB4APR, to track boats and vehicles using GPS and packet radio. MacAPRS was written by Keith Sproul, WU2Z and Mark Sproul, KB2ICI

Also known as G5RV junior the half size G5RV feature reduced dimension and multiband coverage

ADIF Master is a Windows program for working with amateur radio log-books. ADIF Master convert Cabrillo, TR, CT logs or a part of it into an ADIF file. Also you can use ADIF Master to open and edit ADIF log files using filters, add and remove or modify ADIF tags and entries

Sharing beverage antennas with this switch boxes is possible. This article describes a 6-position remote antenna switch for Beverage antennas on 3 bands (160m, 80m, 40m). It allows selecting one of 6 antennas for each band without affecting other receivers. The system uses a control box with a rotary switch and a separate splitting box with bandpass filters for each band.

Indoor wire antenna for 7 mhz from F6CYV

10 Meter WonderBar Antenna, present an SWR 1:1 over entire band, great DX, rotateable by hand, 8 ft long - build for about $20

If you have a small lot and want on 160 meters this is our version of the antenna by K5CBL Troy

Presents the product lines and corporate information for Japan Radio Company (JRC), a long-standing manufacturer of radio communication equipment. The company's offerings span various sectors, including marine, land, and aviation communication systems, alongside their historical contributions to amateur radio with notable **HF transceivers** and **shortwave receivers**. JRC emphasizes its technological expertise in areas such as radar, satellite communication, and network solutions, contributing to global safety and security infrastructure. The resource details JRC's commitment to leveraging its accumulated knowledge and experience in information and communication technology. While the primary focus has shifted towards commercial and governmental solutions, the legacy of JRC's amateur radio products, such as the JRC JST-245 transceiver and the NRD-525 receiver, remains significant within the ham radio community, known for their robust build quality and performance.

Thierry LOMBRY, ON4SKY, develops in three long articles all you need to know about amplification, and how to seletc an HF and a solid-state amplifier, with pictures.

An interesting article on NVIS antennas, explaining basics of NVIS antennas and the main usage of this particular aerials by Patricia Gibbons

IRC is a Free Radio control program for Icom radios using the CIV CT-17 or compatible interface. This program allows the use of different skins to display just about any radio from the IC746 to a secret agent watch. The program uses the new features available with the 746 and 756 to upload or save memories from your rig

A moxon antenna project for 40 and 30 meters

KaWin is a Windows software that supports multiple Kantronics TNCs and multiple radio transceivers with an intuitive, graphical interface, setting a new standard of performance for digital radio communications. Software is not supported anymore.

Automatic Antenna Tuners. Kits and assembled. Other station accessories

PA0FRI's "S-MATCH ATU" published in RSGB's RadCom March 2003). The Balanced Universal ATU Photographs of ZL2ML's S-Match were added.

The Heathkit Virtual Museum is a tribute to the Heathkit tradition. Production of Heathkits, ceased in the 1980's.

Excellent article on limiting noise using chockes by Chuck Counselman, W1HIS

Ham radio humor with something for all ages. Check out the letters from a Tennessee hillbilly ham! Have a laugh er two!

A project by DL5DBM for a VHF UHF antenna suitable for handheld transceivers

Amateur Radio experience, blog from Florence Italy

WinTone v2.02 is a windows DTMF Decoder, run on old windows versions only.

F6EZX presents a detailed account of constructing a compact, multi-band _Levy antenna_ for portable holiday operations, specifically addressing issues with local QRM from a previous _Deltaloop_ setup. The article outlines the design criteria, including multi-band operation on 40m, 30m, 17m, 15m, 12m, and 10m, a symmetrical configuration to reduce interference, and a low take-off angle for DX. Construction involves 2x 10.3m radiating elements and a 15.3m open-wire feeder (ladder line) with 7cm spacing, made from 1.5mm2 copper wire and foam pipe insulation spacers. Theoretical calculations, referencing F9HJ's "_Les antennes Levy_" book, guide the determination of element lengths and feeder impedance characteristics, aiming for a good match across bands with a commercial antenna tuner. Initial field tests with the _VCI Vectronics VC300DLP_ tuner showed a 1:1 SWR from 80m to 10m, with some difficulty on 17m. The antenna, mounted as a 45-degree slopper with the high point at 12m, successfully facilitated DX contacts to South America, particularly Chile and Argentina, suggesting a lower take-off angle compared to the previous Deltaloop which favored Brazil. The Levy antenna significantly reduced TVI/RFI, attributed to its improved symmetry and greater distance from the QRA. While signal reports on 15m and 20m were 1-2 S-points lower than the Deltaloop, its performance on 40m and 30m was comparable, fulfilling the design goals for a portable, low-cost, multi-band solution.

Suppliers of Amateur Radio equipment, Antennas, accesories MFJ, Ameritron, Mirage, hardware and software for digital modes.

Picture and construction details of a 5 element 20 meter monobander

Broadband dipole antenna, needs an antenna tuner but can reach 3db gain over dipole

Base station antennas, now andrew corp.

Yagi antenna for attics

Name Badges, Plastic Signs Desk Stands License Plates & Frames Rubber Stamps, and QSLs

AutoRec is windows freeware time based automatic recorder - player for radio broadcast. Auto Recorder will record or play wav audio files, and execute batch or other executable application programs at scheduled times. The primary use for Auto Recorder is automatic, unattended recording and playback of network or other satellite-delivered radio station program material.

An AO-10 antenna by K5OE, this design is optimized for 436.8 mHz with a 50 Ohm feed

The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB

The W8JK is a famous and effective DX antenna, first built by John Kraus, W8JK, in 1937. A Beam antenna with two parallel dipoles driven with opposite phase, with a close spacing of an eighth of a wavelength.

This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band.

Open source Arduino based CW (Morse Code) keyer with a lot of features and flexibility, often rivaling commercial keyers.