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Query: review
Links: 656 | Categories: 104
Categories
- Radio Equipment > Reviews and Comparisons
- Radio Equipment > HF Amplifiers > Acom 1000
- Radio Equipment > HF Amplifiers > Acom 1010
- Radio Equipment > HF Amplifiers > Alpha 8410
- Radio Equipment > HF Amplifiers > Alpha 87A
- Radio Equipment > HF Amplifiers > Ameritron AL-80B
- Radio Equipment > HF Amplifiers > Ameritron AL-811
- Radio Equipment > HF Amplifiers > Ameritron AL-811H
- Radio Equipment > HF Amplifiers > Ameritron ALS-600
- Radio Equipment > Antenna Tuners
- Radio Equipment > Antenna Analyzers > Array Solutions AIM 4170D
- Radio Equipment > Antenna Tuners > AT-Auto
- Radio Equipment > VHF-UHF Handhelds > Baofeng UV-3R
- Radio Equipment > HF Portable Antenna > Buddipole
- Radio Equipment > HF YAGI Antennas > Cushcraft MA5B
- Radio Equipment > HF Vertical Antenna > Cushcraft R5
- Radio Equipment > HF Vertical Antenna > Cushcraft R7
- Radio Equipment > HF Vertical Antenna > Cushcraft R8
- Radio Equipment > HF YAGI Antennas > Cushcraft X7
- Operating Modes > Digital Modes
- Radio Equipment > Receivers > Drake R-4C
- Radio Equipment > HF Transceivers > Drake TR7
- Radio Equipment > HF Transceivers > Elecraft K3
- Radio Equipment > HF Transceivers > Elecraft K4
- Radio Equipment > HF Transceivers > Elecraft KX3
- Radio Equipment > Microphones > Heil PR-781
- Radio Equipment > HF Amplifiers
- Radio Equipment > HF Transceivers
- Radio Equipment > HF Vertical Antenna
- Radio Equipment > HF YAGI Antennas
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A simple vertical whip antenna for 28 MHz with three radials made of 8 foot pieces of scrap wire and a 102 inch whip -
eHam reviews of the Ameritron AL-811H HF power amplifiers -
A Programming-Free Automatic Arduino Antenna Switch project published on NCJ -
LDG z-100 autotuner review by GW6ITJ -
Presentation about Practical Antenna Modeling Using the NEC Codes with examples of HF wire antennas and 4NEC2. How to define and edit the models, Running the simulations, Work some examples, Variables usage, Deal with Feed Lines and ground -
European version of the ICOM IC-7610 leaflet in A4 Format PDF File -
An interesting presetnation full of usefull tricks to correctly design and build 23 cm Yagi using simple tools. The basic design of the antenna presented in this document is taken from the original DL6WU Yagi Design published in 1982 -
Six meters is a great band for home built Yagis. The elements are reasonably small, but not so small that building tolerances are critical. With careful construction and detailed instructions, it is certainly feasible to build no-tune Yagis up to 432 MHz. -
Ten-Tec Pegasus reviews aka Jupiter -
A very informative review of the Icom IC-7300 direct RF sampling transceiver, including audio samples, recordings and a comparison vs the Elecraft KX3 -
This home made antenna provides around 10.5dBd gain on 70cm, and 6.5dBd gain on 2m, which is more than adequate to work the FM satellites with a handheld dual band radio -
The purpose of this book is to provide a common source for WIRES-X, gather information from manuals, experiences from the Amateur Radio Community, and the best practices from both the Amateur Radio Community and the Bakken Amateur Radio Society. To provide a platform for learning, experimentation, and advancement of Amateur Radio skills and art. A platform of Discovery and to have FUN. To encourage networking, sharing, and exchange of interesting technical information of WIRES X, where people are encouraged to help each other out. -
AR5X review of popular CW QRP transceiver kits -
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A Comparison of most popular Amateur Radio Digital Voice Systems DMR D-Star System Fusion presented by W9HPX Roland at the Charlotte Digital Radio Group in a comprehensive article about Digital Voice -
Using external usb sound card devices for amateur radio digital modes operations -
This article describes the development of two tunable antennas each consisting of three interconnected small loops and capable of providing excellent DX performance. The aerials are home-constructed, and located in a very small garden with a minimum of visual impact on the neighbours and are low enough in height to avoid the attention of UK planning authorities. -
Some observations on the Yaesu FT-817 5W portable HF VHF UHF transceiver with some pictures and movies -
UV-3R reviews at eham.net -
Eham reviews of the dual band kenwood TH-D7a/e series handheld transceiver -
An early review of the Icom IC-7300 by Jose N2LRB -
Review of the Icom IC-706 series, include a short demo video and a short menu table available for download -
N4KGL review of the Elecraft KX3 transceiver based on first experiences in portable operations. -
About experiments and measurements on loading coils using net standing wave current -
QST article from May 1994 about history of call signs from the very beginning to present system. Article explains call sign allocations, call areas, prefixes for novices and prefixes like K WA WB WD, callsigns during and after the world war II and other curiosities on US Call signs. -
Reviews of the popular portable HF transceiver by Elecraft -
Review of the X1M HF QRP trasceiver by VE3FAL -
Diamond Antenna CP22E VHF base station antenna review. This antenna has a remarkable design achieving 5 dBi directivity in a slim low-profile design. -
eHam users reviews on MFJ 989 C HF Antenna Tuner -
How to improve your transmitting antennas for very low solar activity periods, vertically polarized 160 meter antennas, horizontally polarized 80 to 10 meter antennas, single or stacked yagis, multi-tower stations -
Review of 6 QRP CW transceivers by AE5X published in QST December 2000 -
A complete guide for newcomers edited by the Radio Amateur Society of Australia Inc. This free PDF includes several basic articles for new hams, with particular reference to Australian regulations, but is however a good guide for those who are aproaching the hobby worldwide. -
Homemade LC Bandpass Filters for 20M, 30M, 40M In multi-station environments like special events, field day, portable operating, is very important to protect receivers from excessively strong signals. Bandpass filters help to protect your transceivers. -
Complete collection of the four main parts of this excellet research on modelling and designing half wave dipole antennas for 40 meters band, covering all aspects beginning from full wave length antennas, to shortened, loaded and reshaped dipoles -
Main High Frequency Antennas from the 2009 LARC FARL Field Day, Ford Amateur Radio League. A document comparing antenna performances and flexibility among a G5RV an Carolina Windom and a Cushcraft R7 vertical antenna. -
eHam users review of the Ten-Tec Orion transceiver -
An article edited and published by Michael Mandeville on correlation of sunspot peaks and global events, like recessions or human conflicts. This document include solar cycle charts since Solar Cycle 1749-1751 -
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An operating guide for the com IC-2720H VHF/UHF Radio, includes Turning the power On or Off, Selecting the Output Power, Activating Memory Mode, Operating in Memory Mode -
A dipole can be broadbanded by a number of techniques including by matching with resonant sections of transmission feed lines. -
W1WD review and reception performance test of the Elecraft K3 transceiver. -
Yaesu FT-920 review by PA3BFM in 1998 -
Amateur radio map of Italy with WW locators, provinces abbreviations and Call sign Prefixes, in a A3 size PDF file free to download, made available by IU3KJL Davide -
This EXCEL Program Worksheet calculates the common-mode impedance of a 1:1 Guanella (current) balun which is placed at the feed point of a balanced antenna system fed via coax. -
Using Chokes and Traps: how to make them, how they work. -
If you like building good antennas, this one is for you. The J-pole is a slim, omnidirectional, half-wave antenna fed at the end through a quarter-wave shorted transmission line. Its predecessor is the famous Zepp antenna developed for the Zeppelin airship. -
Kings county repeater association review of the Baofeng UV-3r -
In this article, author examine stresses placed on common-mode chokes (aka baluns) as hams use/abuse them, examine the efficiency of simple dipole multi- band antennas and their feed systems. Stressing a Balun. -
The ICOM IC-7610 SDR HF/50MHz Transceiver Basic Manual in English PDF File 13 MB -
Elecraft KX3 Review by a QRP DXer and Contester