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Online antenna calculator for homemade double biquad antenna for UMTS 3G 4G WiMAX WiFi frequencies. Article includes also a simple biquad antenna for 4g

I am an EMT-B,an Incident Commander for NM Search and Rescue and an Amateur Radio Operator - KD5KTY Dedicated to the Preservation of Life through Search, Rescue and Education services.

A comparison of Elecraft KX2 and Yaesu FT-818

Stuff about amateur (ham) radio, especially VHF/UHF, QRP, portable and mountaintop operating

Just my little corner of the world, one radio at a time

The "DIY Telescopic-V Antenna £35" project showcases the creation of a budget-friendly, portable telescopic V-shaped antenna inspired by commercial designs. Using eBay-sourced telescopic whips and custom mounting solutions, the author documents their process, testing, and adaptations. Despite challenges like weather and missing tools, the antenna performed well across multiple bands, enabling successful QSOs. Future improvements include exploring loading coils and testing in better locations. The compact design offers versatility for amateur radio enthusiasts seeking an affordable and practical solution.

A new ham finding his way in the hobby

Personal HamRadio Blog

OJ0UR market reef 2011 online log

An home made multimeter using a SparkFun multimeter kit, includes a time lapse movies of multimeter kit assembling

Ham radio blog dedicated to Mac OS users

CS5TRGM Tertulia Radioamadoristica Guglielmo Marconi

The G5O Contest Group blog documents contest operations and related activities of the Stockport Radio Society. It covers various **HF** and **VHF** contests, providing insights into station setup, antenna configurations, and operational strategies employed during events. The content frequently includes post-contest analyses, discussing scores, propagation conditions, and technical challenges encountered. The blog entries detail specific contest participations, often featuring photographs of the operating environment and equipment used. It serves as a chronicle of the group's contesting history, offering practical examples of multi-operator station management and logistical planning for competitive amateur radio events. The group's focus on both local and international contests is evident through the range of events covered. Regular updates provide a continuous record of the group's engagement in the amateur radio contesting community.

Antennas for the 1296 MHz based on the construction plans of some Yagis 35 elements by DL6WU, F9FT, DJ9YW. These antennas features a boom of about 3 m and gives a gain of about 17.8 dBd

Amaterur radio blog from Cordoba Spain

Ham Radio blog for N3FHW

A small antenna for 50 MHz made with copper cable loading coils

N1YWB's Ham Radio Blog

VU2NAN Nandu's Crystal Radio Pages

Spanish ham radio operator with links to spanish awards

GridTracker listens to live traffic from WSJT-X or JTDX and displays it on a map. It can also load ADIF log files, load clublog, lotw, hrdlog.net and other sources to diplay your logbook statistics and map your QSOs. GridTracker is a free application for windows Linux and MacOS.

An attempt to build a 2m antenna. Consist of a 4 element yagi antenna for SOTA activities

A YL's experience in everything Ham Radio.

The resource, formerly JH6QIL's blog, now displays a service termination notice from teacup. byGMO, the hosting provider. It explicitly states that the teacup. byGMO service ceased operations on August 1, 2022. The page conveys a message of gratitude to users for their past patronage of the platform. This content serves as an archival record of the service's discontinuation rather than an active amateur radio blog. The original blog content from **JH6QIL** is no longer accessible through this URL, indicating a complete cessation of the hosted service.

A blog by W1REI dedicated to ham radio hobby

An interesting article about a homemade LiFePO4 battery pack for ham radio operations, a 10Ah LiFePO4 based on Headway 38120 Cells

A very frequently updated blog of building a large contest station in northern Sweden

Personal blog dedicated to mobile amateur radio operations

M0AUW's Amateur Radio blog specialising in Cobweb and Moxon antennas

A ham radio blog primarily focused on newbies and those interested in the hobby. Covers a wide area of subjects that might be of interest to Amateur Radio operators, and material that can be used to study for the Amateur Radio tests.

Weblog and Surfin comment collection

This channel is all about radio listening and dxing. I will be covering frequency bands like longwave, AM/MW and shortwave. I'm embarking on my renew interest in this hobby since my childhood.

A Primer On Mics For Ham Radio. Difference between dynamic and condenser microphones, microphone plugs and differences in kind of microphones available on the market

Analyzing 433 MHz radio signals from common wireless devices, such as temperature sensors and remote controls, involves understanding **On-Off Keying (OOK)** modulation. This resource details the process of capturing these signals using a Software Defined Radio (SDR) like Gqrx and then visually inspecting the captured audio data in a sound editor such as Audacity. It differentiates between **Pulse Width Modulation (PWM)** and Pulse Position Modulation (PPM) encoding schemes, illustrating how to identify and decode binary data by eye based on pulse and gap durations. The article provides a step-by-step walkthrough for decoding a wireless thermometer's data, correlating bit patterns with known temperature, humidity, and channel values. It also demonstrates decoding an RF remote control's button presses, highlighting the constant and varying parts of the transmitted packets. The content further introduces automated decoding using tools like RTL_433, explaining its capabilities in parsing various device protocols and showing how to interpret its output, including modulation type and decoded data. Specific examples include analyzing Prologue sensor protocol specifications from RTL_433's source code and noting common operating frequencies like 433.92 MHz in Europe and 915 MHz in the US.

Greek Radio Amateur Station from Thessaloniki North Greece

TO3X Log Online

This article is about replacing the LCD display in a Icom IC-756 classic. The displays in these radios have not been supported by Icom in several years.

Information related to the G7IZU Radio Reflection Detection page. The detection of meteors, aurora and other phenomena through the use of signals reflected from ionization in the upper atmosphere.

Blog and personal site of PA1LJG Holland

Tysonpower details a DIY AZ/EL antenna rotator project designed for under €150, inspired by the Satnogs Tracker. Constructed with 2020 aluminum extrusion and NEMA23 stepper motors, the rotator is controlled via an Arduino Nano. It effectively tracks smaller antennas like Yagi, though struggles with heavier dishes. STL files are available on Thingiverse.

Japanese ham blob

Homebrew Antennas, Transmitters, Receivers, Converters, Keyers and SWR/RF Current Indicators with photographs an excellent blog with many projects by VU2NAN

CH21A Nauru, IOTA OC-031 11 Jan 2012 to 07 Feb 2012 operated by HA5AO & HA5UK

DMR personal web site. Includes download links for Codeplug for Hytera AR685 PD685G, PD785G, PD785 & X1P with DMR Plus and Brandmeister support with VFO like channels. Repeater maps. In German.

Ham radio club blog

Blog post by Adrian M0NWK showing how to calculate the latitude and longitude at the centre of a Maidenhead locator using basic maths.

This article is about a homebrew 6 meter lightweight Moxon antenna. Article includes a full part list, instruction to assemble the parts and pictures.