Antennartiklar från DXzone

Senaste artiklarna om antenner från websiten DXzone

1. Top Amateur Radio Websites - Issue 2640

   This week, we've gathered some interesting material for those of you exploring beyond the usual HF fare. There's a good piece on current satellite operations, covering both LEO and GEO birds, which is always something worth revisiting as the constellations evolve. For the portable ops crowd, we’ve got a practical guide to POTA antennas, focusing on field-friendly designs. And if you're looking to get on 10 meters with a minimal footprint, there's a neat build for a vertical antenna using common hardware store parts. Plus, a rigid 6-meter Moxon construction that won't break the bank, and a look at a long-standing DX group.

2. Top Amateur Radio Websites - Issue 2639

   This week, we’ve pulled together a few items that touch on practical antenna work and some digital modes. There’s a good look at a multi-band portable dipole, something that comes up often for field day or SOTA ops, detailing a switching arrangement for 40 through 15 meters. We also have a piece on building and testing 50 MHz traps, comparing different capacitor types—useful for anyone experimenting with 6-meter antennas. For those running APRS, a comprehensive symbol table is included, which is always handy for interpreting what you see on the map. Finally, we’ve got a mention of open-source firmware for LoRa transceivers and a popular Android application for APRS tracking, both relevant for modern portable and mobile setups.

3. JTTY Digital Mode: WSJT-X 3.2 Brings RTTY-Style Speed

   JTTY brings RTTY-style contest exchanges to WSJT-X 3.2.0-rc1: 127 Hz GFSK, no T/R cycles, N1MM Logger+ support. See specs and suggested frequencies.

4. JTTY Frequencies

   The suggested JTTY dial frequencies for every band from 160 m to 2 m, with 14.090 MHz as the initial meeting place. This page covers how to add them to WSJT-X and N1MM Logger+, and is updated whenever the WSJT team revises the list.

5. Top Amateur Radio Websites - Issue 2637

   This week, we're looking at some interesting developments in the LoRa space, particularly how it's being leveraged for amateur radio applications. We've got a few resources that touch on mesh networking, off-grid text messaging, and the integration of LoRa with APRS. For those experimenting with portable setups or considering resilient communication methods beyond traditional HF, these items offer practical insights. There's also a utility for managing virtual serial ports, something that comes up often when interfacing modern transceivers or microcontrollers with logging software or control applications. It’s a mix of hardware-adjacent firmware projects and mapping tools, all relevant for operators keen on digital modes and self-contained systems.

6. Amateur Radio Clubs

   Is your ham radio club on our list? We feature thousands of links to amateur radio clubs worldwide. Add your club's link today!

7. AB0PC Park County Radio Club

   Presents the Park County Radio Club (AB0PC), an amateur radio organization based in Colorado. The club's primary focus is supporting local amateur radio enthusiasts through various activities, including emergency communications... - Listed in Ham Radio/Clubs/North America/USA/Colorado

8. Central Mississippi Amateur Radio Association

   The Central Mississippi Amateur Radio Association (CMARA) serves as a community hub for hams, detailing monthly meetings, POTA activations, and public… - Listed in Ham Radio/Clubs/North America/USA/Mississippi

9. The Morgain 40/80-Meter Antenna for Limited Space Installations

   Details the construction and testing of a shortened Morgain dual-band wire antenna for 40 and 80 meters, optimized for limited space. Includes SWR… - Listed in Antennas/Morgain

10. KFPortal Polish Amateur Radio Community

    KFPortal is a Polish amateur radio community hub offering forums, equipment classifieds, news, manuals, and operator tools. - Listed in Ham Radio/Regional

11. DeepCW: Real-time Neural Network Morse Code Decoder

    DeepCW is a real-time, cross-platform Morse code (CW) decoder leveraging a neural network for robust decoding in weak signal and noisy conditions. - Listed in Software/Morse Code Decoders

12. Simple Microwave Noise Source Construction for Receiver Testing

    Construction details for a simple microwave noise source, generating up to 20 dB above thermal noise for receiver testing. - Listed in Technical Reference/Test Equipment

13. Elecraft K2 as a 2m IF Transceiver for Microwave Transverters

    Details modifying an Elecraft K2 QRP HF transceiver into a 2-meter IF radio for microwave transverters, replacing Yaesu FT-290R units. Includes… - Listed in Radio Equipment/HF Transceivers/Elecraft K2

14. Quantum SDR

    Quantum SDR develops and sells advanced SDR transceivers and pan adapters, featuring AI, DSP, and touch screens for amateur radio. - Listed in Manufacturers/Software Defined Radio

15. 20-10 Meter Fan Dipole Antenna: Complete Build Guide

    A comprehensive build guide for a 20-10 meter fan dipole antenna, detailing construction, specifications, performance, and tuning tips. - Listed in Antennas/Fan Dipole

16. Setting Up OpenWebRX with the RTL-SDR V4 Dongle on Raspberry Pi

    A detailed guide on configuring an OpenWebRX software defined radio receiver using an RTL-SDR V4 dongle on a Raspberry Pi. - Listed in Technical Reference/Raspberry Pi