Search results
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 review of the Yaesu FT-8900r 29/50/144/430 MHz FM Transceiver, providing 50 Watts of power output on the 29/50/144 MHz Amateur bands, and 35 Watts on the 430 MHz band. -
CERT Communications Team Procedures Alinco DJ-191 quick reference in a four pages PDF file -
Amplitude Modulation (AM) is essentially a mixing process where the audio modulating signal is mixed with the radio frequency carrier -
A review of the 30 meter MonoGap Antenna. This review covers from the unboxing go the Gap product, the assembly of the elements, the test and tuning phase and a performance report during the years -
Exaustive review of the self-contained, top-performance HF/6m transceiver Icom IC-7700 -
eHam reviews of the RM VLA 200 VHF RF power amplifier -
Reviews of the AT Auto antenna tuner by Kessler Engineering -
An independent review of the Grundig Yacht Boy 360 portable mediumwave receiver -
A collection of 450 MHz Cheap Yagis that have proven great portable operations, back-packing and transmitter hunts, and are something inexpensive you can throw up in the attic for that weak repeater -
Although most Preselectors are designed with an internal T/R relay, theoretically enabling direct insertion between the transceiver and the antenna, there is a problem when running CW, especially when running full QSK. The switching time of the internal relay is too slow to follow full QSK. The best way to avoid this problem altogether is to insert the Preselector directly into the transceiver’s RX antenna line, thus avoiding entirely the need to switch the Preselector in and out. -
eHam.net reviews of the Icom IC-R20 wideband receiver -
eHam users review of the Icom IC-R75 receiver -
All available frequencies & offsets configurations for repeaters can be downloaded as database for Kenwood MCP-2A memory channel programming software for TM-D710 & TM-V71. Zip file is no more available from the author, but the full table of frequencies is still online -
eHam reviews of the Icom IC R7100 VHF UHF receiver -
eHam reviews of Alpha 8410 HF power amplifier -
A review of the dual band FT-8800R transceiver by the jeep expedition group -
A review of the GAP Challenger DX Antenna that is not a traditional 1/4 wave vertical, but is a vertical dipole, this gives it several advantages over a standard 1/4 wave vertical, mainly the reduced number of radials, with excellent performances. -
Reviews of the Icom ID-51A handheld dual band transceiver -
A detailed review of the Icom IC-7700 by VA7OJ/AB4OJ -
Yaesu FT-450D HF / 6 Meter DSP Transceiver, a nice affordable transceiver for amateur radio use, but understand the caveats. -
Operating on Airplane scattering. Scattering of radio signals by airplanes. An introduction to operating ariplane scattering, using aircraft to redirect RF that would otherwise be lost in space. Antenna Pointing, Doppler Shift/Digital Modes, using digital modes to operate airscatter. -
A review of the SteppIR UrbanBeam antenna a two element Yagi antenna working 40-6 meters. The UrbanBeam is a good choice for those thare are limited by lot size, regulations, city regulations. -
An explanation of the different procedures and definitions that are commonly used for blocking dynamic range (BDR) measurements. Dynamic range in general is the ratio between the weakest signal a system can handle and the strongest signal the same system can handle simultaneously without an operator switching attenuators or turning volume potentiometers -
This morse key and buzzer design only requires parts that one may already have or are easy to find on the web. There is nothing critical except that the contacts must meet when the key is depressed. -
A document that will guide you on Coaxial-Cable trap optimization process to gain on global antenna performance and on increasing effective bandwidth. -
Yaesu FT-7800R dual band mobile transceiver reviews -
A QST Article published in November 1922 is about the origin of Beverage antennas, an unidirectional antenna type that was discovered and experimented for the first time in that period. This article is the introduction to beverage antenna theory, by the homonimous autho H. H. Beverage. -
Collection of several topics on antenna tuners and their performance. Why use an antenna tuner? How does an antenna tuner…tune Does an antenna tuner fool the radio? Will an antenna tuner waste power? Can an antenna tuner help get more power to the antenna? -
eHam reviews about the Wouxun KG UV8D V/UHF Handheld Txcvr - Dual reveive 135-175 MHz & 400-520Mhz -
eHam reviews of the TE Systems 1452G 2m mobile power amplifier -
eHam reviews of the MFJ-259B HF/VHF Antenna Analyser -
Surprisingly, although PCB soldering is the core process of electronics assembly, few people do know how to solder reliably -
Getting a licence with Dyslexia/ADHD can be frustating expecially after several and repeated fails. This article help understanding and helping candidates with cognitive disorders. -
Recent researches seem to support the hypothesis that Sporadic E propagation could be connected to presence of thunderstorms. -
A review with early observations and technical data specifications of the Icom IC-703 QRP HF+50 MHz transceiver -
This HOWTO explains in detail how you can use the Kenwood TS-590S USB, COM and ACC2 ports for digital operation, set up the radio for digital data and digital voice operation -
Modifying the Collins KWM-2 for Serious CW Operation, Make this old SSB workhorse perform like it should on CW. -
Yaesu FT-710 AESS MF/HF and 6-Meter Transceiver review on QST -
eHam user's review of the Icom PW-1 RF Power Amplifier -
Review of Ameritron AL-82 HF amplifier, owned for three years now, and over that time, it has given me incredible performance on all bands. Inclueds a comprehensive usage report and a summary on Pro and Cons of this amateur radio RF amplifier -
Web site dedicated to articles relating to Ham and CB Radios and antennas, reviews and classifieds. -
This review of progress and future Prospects provides a practical guide for effective use of VHF sporadic-E propagation. -
These pricey battery-powered devices are the only type of generator that can be used indoors safely. The article reviews pro and cons of power stations evaluating runtime, power delivery, power quality, ease of use, and noise. -
eHam reviews of the Mirage BD-35 VHF UHF Amplifier -
Web site and blog that reviews equipment, goes over safety, and display projects being built. Includes Yaesu FT-891 and Ameritron RCS-10 Review, a 555 Morse Code Practice Oscillator, and and arduino based Morse Code Practice Oscillator -
DMR Handheld TDMA Tier I and Tier II VHF or UHF product review with information on accessories -
TE Systems 0510G 50 MHz meter amplifier set up for 10 watts in and 170 watts out. -
Array Solutions AIM 4170 antenna analyzer eham reviews -
A review of the most popular and traditional methods to learn morse conde and a different method that foreseen to learn 100 most common words in CW -
Review of Yaesu VX-3R 2 m/70 cm FM transceiver. Receives 0.5-999Mhz AM/FMN/FMW, Transmits 144-148 and 430-450Mhz VHF/UHF FM.