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A transceiver front-end protector in high signal level environments. An homemade RF limiter to protect your receiver front-end from high radio frequency.

WR1B review of the Kenwood TS-570D on QST Jan 1997

Review of Logikey K-5 Keyer

Study of the Coaxial Dipole: Just how does this thing work.

Eham Yaesu FT-1000 review

Eham users Kenwood TS-50 review

eham users review of the Kenwood TS-570D or TS-570G HF Transceivers

Contesting, CW, antennas and review on TK/OE5XVL DXpedition 1999 plus my GD/OE5OHO DXpedition in 1997.

This manual is an edited version of the GAP supplied document, complete with diagrams, pictures and assembling notes by Mitch Baum AE2A. This is 29 pages document in PDF Format.

Slot cubes are folded skeleton slot antennas with widened, folded dipoles bent into a cube to reduce size. QST Article 12 2019

Yaesu FT817 all band, all mode handheld transceiver article.

Adam, VA7OJ/AB4OJ's IC-756Pro III User Review

An Energy Analysis at an Impedance Discontinuity in an RF Transmission Line

eHam user reviews of the Yaesu FT-450 HF+6m t ransceiver

This is a presentation used at OVARC on the LindenBlad antenna construction. The presentation cover several topics about this antenna, from the basic antenna design, to the guide on how to contruct a custom lindenblad antenna for the 2 meters band and and 70 centimenters band.

Eham users review of this HF/VHF/UHF All Mode Transceiver.

Want to operate on 40 meters but only have a space a little over 16X16 ? Try this antenna.

Features, functions, a howto and opinions by Jason Buchanan - N1SU

A simplified Guide to the FT8. Dxpedition mode. By Stefano IK2HKT – Rel. 2.0.0 - January 2019. This document explains how to configure WSJT to work on F/H mode DXPedtions, how to operate and make a call to a dxpedition calling CQ in FT8 Fox Mode.

KV5R review of the Icom 706MkIIG

The Mobile-Portable Reflector serves as a dedicated discussion platform for amateur radio operators interested in mobile and portable operations. It facilitates the exchange of information and answers questions specifically related to operating amateur radio from vehicles, temporary field locations, or while walking. The platform is not intended for general amateur radio discussions; its scope is strictly limited to mobile-portable topics. Subscribers can access prior postings to review historical conversations and solutions. The list is administered by _dick at k7vc.com_ and operates on Mailman version _2.1.12_. Subscription requires email confirmation and offers optional privacy password protection, with an option to receive daily batched emails.

Article from 73 Amateur Radio Today about experimenting on ferrite loops transmitting loop antennas for 80 and 160 meters bands.

Yaesu VX-6R eham.net users review

There are many designs for building preamps each with their own advantages and disvantages. In this PDF Article author reviews several different types.

eHam users reviews on the TS-480SAT

Hone your Morse code skills with this entry-level project. Article includes the full schematic of the CW Trainer, describes the sketch and how to operate the morse code trainer.

Design and build a 6 meter 2-element Moxon antenna mostly from available aluminum tubing and angle stock.

Forum thread about the Yaesu VX-170 at trainorders.com

eHam reviews for the Ameritron AL-811 linear amplifier

TenTec Receiver RX 320 D Review by DF9CY

A review of some portable antennas for SOTA operations, including linked dipoles, end-fed, verticals

This document is a must read for anyone considering building a good low cost HF multi-band antenna system. The author combine in this document four important ingredients to produce simple but effective antenna system, like antennas of non resonant length, line attenuation, the transmatch and the balun

eham users reviews of the Kenwood TS-570S(G) series

A review of the Buddipole Deluxe Antenna portable HF VHF ham radio antenna

About Coax Traps, NC4FB examine the operation of coax traps through modeling.

The author who works successfully via EME on this band wants to describe his own yagi design and give some of hints for the construction. by Heinrich F. Reckemeyer, DJ9YW

Yaesu VX-8R eham users reviews

How to run an SDR Receiver on the Android Google Nexus 7 using SDR Touch App and an RTL-SDR dongle, review and costs by IW5EDI

How to become an amateur radio ? by ON4SKY Review of general conditions to get licensed, examinations, regulation, CW, foreign calls, and more

Eham users Yaesu VX 5R review

Covers 10m 12m 15m 17m 20m 30m 40m and 100 KHz on 80m, & WARC Eham Reviews

The TS-570 review by Arend , PA1ARE

Presents the VHFDX.EU web cluster, a specialized resource for VHF, UHF, and microwave DX spotting. It details the cluster's functionality, including real-time spot aggregation and a DXCluster Map interface for visualizing activity. The resource highlights its integration with the MMMonVHF backbone, ensuring a robust data flow for monitoring band openings and propagation events across higher frequencies. It also references reviews of the ON4KST and N0UK chat systems, which are frequently used in conjunction with VHF DX operations. The platform offers a mobile-optimized view for on-the-go access to DX spots, catering to portable and mobile operators. It further provides daily ES (Sporadic E) spot summaries, a critical feature for VHF operators tracking this specific propagation mode. The cluster serves as a central point for operators to share and receive information on rare grid squares, contest activity, and general band conditions above 50 MHz.

By by Larry Wolfgang WR1B in QST Archives at ARRL

The ARRL Contest Results Database serves as a centralized repository for official scores and detailed breakdowns from numerous ARRL-sanctioned operating events. This resource typically features comprehensive listings of participants, their submitted logs, and final standings across different categories, modes, and bands. It allows hams to review their performance, compare results with other operators, and analyze contest trends over time, providing valuable insights into competitive amateur radio. Historically, the database has showcased the efforts of thousands of contesters, from single-operator entries to multi-operator, multi-transmitter stations. While the current status indicates scores are not immediately available, the database's primary function is to archive and present the outcomes of events like the ARRL DX Contest, Sweepstakes, and Field Day. This historical data is crucial for tracking individual progress, identifying top performers, and understanding the competitive landscape within the amateur radio community.

Article on evaluating HF Power amplifiers and review of popular PA by K0BG

eham review of the ICOM IC-756PRO

Sommerkamp FT 250 Shortwave Transceiver (YAESU FT 200)

This is a schematic drawing of a project for the construction of a portable mast that can easily be made with PVC pipes.

Adding 17 meter band to Mosley TA-33M yagi antenna