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- Technical Reference > AI Ham Radio
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- Radio Equipment
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A 3 Element Mono-band Yagi for 20 meters by Kees Wiegers, PA5CW (ex-PA3BHS) -
Documentation (manuals, schematics diagram, ...) for CB and PMR 446 radio's -
Launch the StarNet radio scanner to listen to Tucson-area police, fire and other agencies radio transmissions. -
Repair and sale of icom kenwood and yaesu products -
The multi band HF loop antenna, a good performer on 80 and 40-10 meters. This excellent article covers all aspects of designing a resonant loop antenna, examining gain and radiation patterns, and describing practical notes on how to build this antenna. -
Article with detailed pictures of an endfeed antennna for 20 and 30 meter band -
Step-By-Step Construction of a 4:1 Current-Type Guanella Balun by W1CG -
Programs for hams written by Alex Shovkoplyas -
W7TDC modification of the Ameritron AL-80A power amplifier -
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. -
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"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." -
Information about clandestine radios by dxing.com -
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 -
Provides comprehensive frequency listings for various public safety agencies and private organizations who operate across the Kansas and Missouri Region. -
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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 -
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. -
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. -
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 -
Royalty free clipart and pictures about radio and antennas -
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. -
