DXZone.com

17/01/2025

Lead Acid Battery Voltage Monitor

this project outlines a simple lead acid sla battery monitor designed to alert users when battery voltage falls below 10 6v the monitor based on a pic16f1827 microcontroller checks the voltage of up to...

16/01/2025

Lightweight 5-Element LFA Antenna for 2m

with increased es propagation this lightweight 5 element lfa antenna offers enhanced performance over the bigwheel antenna s 5dbi gain delivering approximately 11dbi and forward gain designed from g0ksc...

15/01/2025

Compact 5-LED S-Meter with Calibration

this project features a compact 5 led general purpose s meter designed for use with various radio circuits it utilizes the lb1403 ic with alternatives like lb1413 lb1423 and others the circuit s design...

14/01/2025

Yaesu FT101ZD DDS VFO Replacement

the ft101zd dds vfo project replaces the original vfo in the yaesu ft101z zd rigs with an ad9850 dds module providing enhanced frequency control it uses the original optical encoder and clarifier for...

13/01/2025

Simple 3.5–30 MHz Superheterodyne Receiver

a simple superheterodyne receiver 3 5 30 mhz for amateur radio achieves stable ssb cw reception using modern bjts an ad831 mixer a 6 pole quartz filter and seiler oscillators designed with high if 4 5...

12/01/2025

Top Amateur Radio Websites - Issue 2501

A 10-Band Attic Antenna System for Contesting Success, The C Pole - A Ground Independent Vertical Antenna, How to build a 12V emergency power supply , C-Pole Antenna Project, Dipole Bazooka Antenna for...

12/01/2025

Building an End-Fed Half-Wave Antenna: A Step-by-Step Guide\"

the arrl s end fed half wave efhw antenna kit is an easy to build four band antenna designed for 10 15 20 and 40 meters ideal for portable operations it includes a 49 1 impedance transformer for compatibility...

11/01/2025

The Communicator Digital Edition

the communicator a digital magazine by surrey amateur radio communications sarc offers over 125 pages of engaging amateur radio content with contributions from regular columnists and minimal advertisements...

11/01/2025

SWL Contest 2025 MW and SW

listen am radios on mw and sw for 2 months awards for all participation the contest will start the 01 january 2025 and finish the 28 february 2025. Listed under the DX Resources/Contest/Contest Rules...

11/01/2025

SWL Contest 2025

listen am radios on mw and sw for 2 months awards for all participation the contest will start the 01 january 2025 and finish the 28 february 2025. Listed under the DX Resources/Contest/Contest Rules category that is about Contest Rules.

10/01/2025

Zetagi HP201 SWR Wattmeter Modification for HF Amateur Radio Bands

the document provides a detailed modification guide for the zetagi hp201 swr wattmeter converting it for hf amateur band usage it replaces the original circuit with a tandem coupler based on the sontheimer...

09/01/2025

Practical Wireless

practical wireless is a doing magazine focusing on the practical and constructional side of amateur radio and appeals to all ages written by expert authors and contributors practical wireless reflects...

08/01/2025

National Communications Magazine

national communications magazine is a subscription based weekly publication on substack focusing on scanner radios cb radio gmrs frs and murs transitioning from print to an online pdf format in 2012 and...

07/01/2025

Satellite Antennas Hints and Kinks

low cost satellite antennas article was originally presented at a project oscar seminar on september 30th 1990 amsat uk printed an abridged version of this presentation in their oscar news number 88 april...

06/01/2025

The Canadian Amateur Magazine

the canadian amateur tca canada s premiere national magazine devoted to amateur radio is published six times per year and is the membership journal of the radio amateurs of canada rac it is available...

05/01/2025

Texas DX Society

the texas dx society founded in 1970 is a non profit organization of radio amateurs in houston texas who have a primary interest in dx chasing and contest operating on hf vhf and uhf . Listed under the...

04/01/2025

Funkamateur

funkamateur is a german amateur radio magazine published in german since 1952 and circulating with monthly issues in most of the german speaking countries like austria switzerland and of course germany...

03/01/2025

The Collins 51S-1, built from 1960 to 1980, is a legendary HF receiver covering 0.2-30 MHz. Renowned for its build quality, sensitivity, and selectivity.