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Windows application that will allow you to perform calculations with the popular Maidenhead Grid Square system. This grid system is used worldwide by amateur radio operators for many aspects of ham radio. -
The complete status of the FT-817, FT-847, FT-857, FT-857D, FT-897 or FT-897D memories can be read into the computer and saved to disk. Any saved file can be subsequently reloaded into the computer and sent back to the rig. This facility uses these rig's ability to clone configurations from one rig to another using the serial port. -
Constructing and designing full size, single band stacked yagi antenna arrays -
KSM Kenwood Smart Memory is a program to read and update the memory channels of a Kenwood amateur radio. The current supported types are: TS-450S, TS-570D, TS-570S, TS-690S, TS-870S, TS-940S,TS-950S. -
"CB books, plans, and kits. Repairs, modifications, 10-Meter conversions, amplifiers, FM, unique high-performance accessories. Publishers of the classic ""Screwdriver Expert's"" Guide book." -
Radiomobile is an excellent and very detailed radio path mapping software, vhf uhf propagation predictor. This windows free software is a tool used to predict the performance of a radio system. -
An interesting article about homebrewing antenna traps for multiband antennas by VE3GK -
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A detailed drawing of a VHF UHF Log periodic antenna by VA2PHI -
Midland Consumer Radio, Inc. is one of the most experienced and respected names in radio equipment. Midland offers the broadest line of CB transceivers in the industry, Amateur radio transceivers, VHF marine transceivers, VHF power amplifiers, and RF equipment for the broadcast industry. -
More than 80.000 datas of antique radios, pictures and plans. European and US-Radios. -
Service information, manuals, diagrams pictures and schematics, and technical files on Cobra Radios -
Plans, photos, electrical and mechanical design for this HF Log periodic antenna. -
The multi-band trapped dipole is resonant on approx 3.7, 7, 14, 24 7 28.5 Mhz. The overall top length needs to be approximately 32.9 Meters -
This antenna is intended as a simple, inexpensive solution for the newcomer to experiment across the 40m band (7.0-7.2MHz) when only restricted space is available -
Retrospective of a mark now disappeared. Jumbo, Multimode, Concorde, Puma, Viking. Photographs, diagrams, adjustments etc. -
This page describes the design and construction materials W8WWV used to build a coaxial cable trap. A coaxial cable trap is a parallel resonant circuit that is usually inserted in an antenna element to enable multiband operation. -
Guide to calculate effective gain of antennas -
Contain schematic diagram of many different radio, and some operations instructions. -
Sardine Can Antenna. is a BiQuad or Bi circle - wire length each side (8 x 1/4 waves ) 31 mm -
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Austin Amateur Radio Supply, online amateur radio store. -
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How To Build Code-Practice Apparatus: A Simple Telegraph Key -
Hong Kong's only full-service amateur radio store. Full line of Amateur Radio and Two-way equipment and accessories from companies such as Yaesu, Icom, Kenwood, Motorola, MFJ, Alinco, Diamond, AOR and many, many more. Knowledgeable staff with many years of experience in the radio business TAX-FREE shopping (no sales, VAT, GAT or other taxes) HF, VHF, UHF transceivers, receivers, walkie-talkies, antennas, antenna tuners, coax and connectors -
This free software is useful for visualizing terrain and performing Longley-Rice path loss and coverage prediction using the Irregular Terrain Model. A Windows port of the Linux-based SPLAT by John Magliacane. -
Here is a serial control (CAT) cable that plugs into the FT-857's microphone jack, freeing the CAT/Linear jack for other purposes. -
Collection of SW receiver reviews written by readers of Rec.radio.shortwave -
WSJT-X - Weak Signal Communication, by K1JT - offers specific digital protocols optimized for EME (moonbounce), meteor scatter, and ionospheric scatter, at VHF/UHF, as well as for LF, MF, and HF propagation. Support digital modes like FT8 FT4 JT65. The program can decode fraction-of-a-second signals reflected from ionized meteor trails and steady signals more than 10 dB below the audible threshold. WSJT-X incorporates nearly all popular capabilities of programs WSJT and WSPR, while adding comprehensive rig control and many other features. Open-source, download latest version for Windows, Linux, Mac OS X. -
This web page describes a small, single tuned circuit regenerative receiver primarily for daylight reception in the 16, 19, 22 and 25 meter international shortwave broadcast bands. -
Search for station listings by HF Frequency. Results show who is scheduled when on the frequency in question. -
A double bazooka antenna plan for the cw portion of the 40 meter band -
A cost effective current-mode 1:1 balun can be constructed from a length of coax and a rod typically used for a broadcast antenna loop-stick, some electrical tape, cable ties, a length of PVC water-pipe and some connectors. -
Complete introduction to amateur radio, excellent resource for beginners. -
The page provides detailed information about the construction of a full-size 160M 3 element beam antenna and an 80M 5 element beam antenna on a 330ft tower. It includes specifics about the tower height, types of antennas, elements, gain, take off angles, front-to-back ratio, operating frequencies, weight, and dimensions of the beams. The content is aimed at amateur radio operators interested in building high-performance antennas for the 160M and 80M bands. This Antenna is now been destroyed and is no more operational. -
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U.S. Government's military handbook on grounding in pdf format -
Optimal Working Frequencies (MHz) for High Frequency (HF) / Shortwave Radio. By region, updated monthy. -
The cobweb antenna it is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10 meters and 20 meters, the antenna is also resonant on 6M and can be modeled even for VHF frequencies. -
Amateur radio clip art for web pages, desktop wallpaper, newsletters and more! -
A simple dual band VHF UHF jpole antenna Projects by Dale Kubichek -
This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX -
You'll find more than 330 Amateur Packet Radio Gateways on world maps. -
Attic Fan dipole antenna that allow to operate QRP from 40 metres to 10 metres, specifically 40, 20, 17, 15 & 10 meter band -
The SoftRock-40 is a small, low-cost, good-performing "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio. -
Some tens of very special audio files recorded during amateur radio activities like aurora traffic, meteor scatter, communications with ISS crew and the sound of various transmission modes that you can hear on HF and VHF bands -
FBB is a freeware bulletin board software for amateur packet-radio run on DOS Windows and Linux -
HF Ham Radio antennas for apartments and methods of shortening antennas -
Schematics, mechanical drawings and picture of a Receiving loop antenna by N5ESE - N5FC
