Search results

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.

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

Ham radio club blog

Presents amateur radio activities and experiences from JJ0LUU and JJ0LXF, two operators based in Japan. The weblog, hosted on shinshu.fm, documents their on-air operations, equipment setups, and general ham radio interests. Content often includes details about specific contacts, antenna configurations, and local operating conditions within the Japanese amateur radio community. The resource primarily focuses on personal operating logs and occasional technical discussions relevant to their station. It offers a glimpse into the daily life and pursuits of Japanese **amateur radio** operators, detailing their engagement with various bands and modes. JJ0LUU and JJ0LXF share their passion for radio communication, contributing to the broader online repository of individual ham radio narratives. The site serves as a digital logbook and informal platform for sharing their **DXing** and contesting endeavors.

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

Weblog from Florence Italy, with personal infos and updates on his ham radio activity

This site is established by a group of ham members who wish to see the interests of amateur radio in Malaysia protected.

Ein satellit entsteht und andere amateurfunkaktivitäten...

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

Simon Saunders' Blog, from UK

Ascension Island ZD8ZZ online log

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.

HC8LUT Argentinian DXpedition from San Cristobal Galapagos Island November 29 to Dicember 8 2017

Ham radio blog dedicated to WX Sat reception in particular NOAA satellites, antenna homebrewing and beacon reception by F4CWH

Personal blog devoted to ham radio topics, portable operation, homebrew, antenna and other projects

A micro-blog about micro-signals, mostly QRP

Using portable battery power is always a challange when operatin amateur radio in sota oprations. This article is about implementing lithium iron phosphate cells (LiFePO4) in ham radio portable operations.

Hurricanes Katrina & Rita information from various sources. Compiled by KD5QEL Robin (New Orleans native) near Atlanta, GA. Not for chitchat--only for communications info.

W1REI / DU1LWQ amateur radio station blog from California

KB0OXD amateur radio blog

By F2JD as HR5/F2JD Log

The purpose of this blog is to help new hams and promote amateur radio

The DIY 137 MHz WX SAT V-dipole antenna project details the construction of a specialized antenna for receiving weather satellite transmissions. It provides specific dimensions for the dipole elements, designed for optimal reception around the 137 MHz band, which is commonly used by NOAA and Meteor weather satellites. The resource outlines the materials required, such as aluminum tubing for elements and PVC for the support structure, along with the necessary coaxial cable and connectors. The article presents a clear, step-by-step assembly process, including how to form the V-shape and connect the feedline. It emphasizes practical considerations for mounting and weatherproofing the antenna for outdoor deployment. The design focuses on simplicity and effectiveness for amateur radio operators interested in satellite imagery. Key aspects include the precise angle of the V-dipole and the lengths of the radiating elements, which are critical for achieving the desired circular polarization response for satellite signals. The resource includes photographic documentation of the construction phases and the final mounted antenna.

A personal blog about amateur radio activities, including homebrew, bitx, ubitx, mcHF, JT65, FT8 and more digital communications.

Blog about my radio activities and homebrews

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

A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cable. From the RF point of view, the shield can be modeled as two conductors, the internal shield (the real shield, this is, ground) and the external shield, who is really far to be ground. In this way, your dipole has 3 arms, the two from the dipole and the coaxial cable shield (external face)

shedberg, spinning & grinning livejournal blog

How to do a capacity check on your battery pack. Videos demonstrate how to test the capacity of a 4S 10Ah LiFePO4 Headway pack

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 introduction to NPR by Daniel Estevez. In this blog article Daniel EA4GPZ / M0HXM, introduce the new IP communication protocol over the 70 cm amateur radio band. Daniel is an experienced operator on IP on 430 MHz with CC1101 and Beaglebone black project and makes a good comparison of the two projects.

Presents various amateur radio topics through blog posts, detailing operational experiences and technical insights from the perspective of SV2YC. The content frequently discusses antenna projects, such as a **portable 20m/40m dipole** designed for rapid deployment, and explores the performance characteristics of different wire configurations in varied field conditions. Observations on propagation and band activity across the HF spectrum are also regularly documented, providing practical context for fellow operators. Specific entries often include detailed accounts of **DX contacts** and participation in minor contests, outlining station setup, power levels, and antenna choices. The blog also covers modifications to commercial transceivers and homebrew accessory construction, offering practical advice on improving station efficiency and functionality. Further posts delve into software applications for logging and digital modes, sharing configurations and operational tips for maximizing their utility in daily amateur radio activities.

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

This article provides details on building a 6 Meter J-Pole antenna using PVC pipe for an enclosure. This antenna uses flat 450 ohm Window Line for the tuning stub.

Ham radio, amateur radio, satellite communication, radio, radios,antenna, antenna design, yagi, cross yagi, power divider, splitter, Brisbane.

My place in cyberspace for thinking out loud about the Three Rivers Area Montioring Association

The K3NG Keyer is an open source Arduino based CW (Morse Code) keyer with a lot of features and flexibility, rivaling commercial keyers which often cost significantly more.

Ham radio stuff, scanner and shortwave topics at KE6ZGP blog

The website for VA3XPR is intended to provide users with information about the VA3XPR repeater, plus news and information related to ham radio digital voice communications.

A project about reversible unidirectional Beverage antennas plus a remote switching system conveniently controlled by the operator

Manfrotto shoulder bag Amica 25W can be used as a low cost carry bag for Elecraft KX3.

Ham radio blog by KU7PDX Chris Arnesen

JE1TNL blog

By CE2NTT; 40-6m; SSB QSL via CE2NTT Direct

How to solve RFI problems caused by the charge controller, which is a PWM type charge controller, that generates a lot of EMI interference

Tutorial- WSPR receiver with Raspberry Pi and RTL-SDR

Showcasing college amateur radio club activities, events, and projects. Informs visitors of up to date news items pertaining to ham radio technology used on campuses by students, faculty, and staff. A way for alumni to be informed of their clubs activities.

VP6R online log for the Pitcairn Island DX pedition 2019. October 18 till November 1 2019. Service provided by ClubLog

This article discusses how volume reduction can help in the reception of weak signals by reducing the noise level. It is commonly known that reducing the volume also reduces the background noise, and especially in the reception of weak digital signals it can be beneficial