transmitter - search results

A new “Multi-Transmitter Distributed” category is being added to the CQ World Wide WPX Contests to better accommodate operators who wish to compete as a team without all being in the same physical location.

This week, we're looking at a few items that touch on practical station improvements and some interesting receiving setups. There's a clever Arduino project for those running Icom 7700/7800 rigs, letting you command an external tuner remotely – something that comes up often when optimizing feed lines for various bands. We also have a piece on building a phase-controlled receiving array, which is always worth revisiting for weak signal work, especially on the lower bands where noise can be a real challenge. For the vintage gear enthusiasts, a collection of 'boatanchor' photos might spark some nostalgia or inspire a restoration project. And for those curious about specific receiver performance, a detailed review of the ICOM IC-R9000 offers insights. Finally, a look at a KiwiSDR operating from Iraq provides a unique listening post, and a homebrew QRP transmitter build offers some solid construction tips.

This week, we've gathered a few interesting pieces, starting with a look at remote tuner control for some Icom rigs—something that comes up often when you're trying to optimize a less-than-ideal antenna setup from the shack. We also found a neat project for low-band receiving, specifically a phase-controlled array, which could be a real asset for digging out weak signals or tackling local noise issues. For those who appreciate the classics, there's a collection of 'boatanchor' photos worth browsing. We also have a review of the Icom IC-R9000 receiver, a capable unit for general listening. If you're into remote listening, there's a KiwiSDR located in Iraq that offers a unique perspective on HF propagation. Finally, a detailed homebrew QRP transmitter build rounds out the selection, focusing on practical construction details that many experimenters will find useful.

Guglielmo Marconi did not merely invent a device, he proved to a skeptical world that the atmosphere itself could carry human messages across oceans. This tribute explores the life, vision, and stubborn determination of the man amateur radio operators rightly call the father of long-distance wireless communication.

This week, we’re looking at a few practical builds and modifications that might spark some winter workbench activity. There's a detailed guide for a multi-band portable vertical, the PAC-12 Antenna, which uses easily replaceable loading coils—something that comes up often when you’re trying to cover a lot of ground with minimal gear. For those running an Elecraft KX2, a modification for adding audio I/Q output is presented, useful for external SDR software or a spectrum scope, which can really enhance signal analysis in the field or at the home station. We also have a look at a 40-meter reversible Moxon design, a practical approach to directional antennas without needing a rotator, and a simple 80-meter CW transmitter build for those who enjoy getting on the air with minimal parts. Finally, there's a discussion on optimizing keyboard setups for CW contesting, a small detail that can make a big difference in a pileup.

80m and 160m Antenna Design, Power and SWR Meter with TFT Touch Display, High Suppression Hybrid LPF for HF Transmitters - DL2KQ, Fixing the element to the traverse, ICOM IC-7610 Unlocking 60m band, Yaesu FT-757GX Battery Replacement Guide, YAESU FT-991 Recording contest QSO,

Ultimate Guide to FT8 and FT4 Digital Modes in Ham Radio, Another Delta Loop Antenna Idea, T41-EP SDT: Open-Source Software Defined Transceiver, Build an End-Fed Half-Wave Antenna Kit Guide, PicoFox: Open-Source 2-Meter Fox Transmitter, Improving Your QRZ.com Page - Essential Guide for Hams, NA7Q APRSdroid How-To,

OpenModem - Flexible and Open Packet Radio Modem and TNC, Effective HF Bands Noise Cancelling System, KISS703: Digital Mode for HAMs, Ciro Mazzoni Baby Loop Ham Radio Antenna: An In-Depth Review, ZL2PD LED Frequency Counter, Permeability Tuned Oscillator - ZL2PD, Guidelines for JOTA Amateur Radio Operators

TAP: A Morse Alternative Mode for HAM Radio Operators, LoRa for APRS and Packet Radio, Understanding LoRa Parameters: How They Influence Data Rate and Range, HAMTV from the ISS - Digital Amateur Television Transmitter, ATV Projects - Amateur Radio ATV Resources,

WSJT-X Improved, CLEFHW Antenna: Coil Loaded End-Fed Half-Wave Antenna, FT8 QRP Transceiver, MiniPA Linear Amplifier for HF: Review and Build Guide, Collinear Dipole Antenna Calculator - Calculate Antenna Dimensions, Compare and Contrast WWFF from POTA - CQParks, K4 S-Meter Recorder for Elecraft K4 Radio