The Tactical Deployment of OsmAnd in Search and Rescue Operations
When a missing person incident escalates into a wilderness Search and Rescue (SAR) operation, standard…
Best Firewall & Router OS for Raspberry Pi, HTPC, and Mini PC
Whether you're a home lab enthusiast, a privacy-conscious user, or a small business owner, turning…
Graywolf: A Modern APRS Station That Actually Keeps Up With the Hardware It Runs On
If you've spent any time in the amateur radio packet world, you know the landscape.…
APRSdroid NA7Q Edition: The Most Feature-Rich APRS Client for Android
For years, APRSdroid has been one of the most widely used APRS applications available for…
The Iconic aprs.fi App Finally Lands on Android!
For a solid decade, a running joke in the amateur radio community went something like…
Navigating the Unseen: The Science, History, and Mastery of the Magnetic Compass
For thousands of years, traveling across vast oceans or featureless deserts was a gamble against…
The ClusterDuck Protocol (CDP): Architectural Analysis of an Open-Source, Ad-Hoc LoRa Mesh Network
The resilience of communications infrastructure is frequently tested by extreme weather events and natural disasters.…
The Copper-Wire Internet: How Ham Radio Conquered Real-Time Data and Global Spotting Before the Internet Wielded Its Might
Today, tracking a rare DX station or viewing the live movement of a portable radio…
The Swiss Army Multi-Tool: From Military Origin to 50 Practical Everyday Uses
The Victorinox Swiss Army Knife (SAK) is one of the most recognized design icons in…
Can an Apple AirTag Actually Save You If You Get Lost in a Forest With No Cell Service?
The Technical Answer: No. Here Is Why. There is a growing misconception that a RM129…
OSMand: The Complete Guide to Offline Navigation with OpenStreetMap
OSMand is a mobile navigation application built on OpenStreetMap data. The name stands for OpenStreetMap…
APRStac: A Modern APRS Suite in a Single Binary
APRStac is an APRS web client, digipeater, I-Gate, BBS, fileshare host, email gateway, and multi-protocol…
When Amateur Radio Meets Search and Rescue: LoRa APRS in the Search for Missing Hiker Jaslinda
https://www.youtube.com/watch?v=d2TUYJ63BOM When people hear the words amateur radio, many still picture hobbyists talking over the…
SARTrack: From Ham Radio Hobby to Life-Saving Search and Rescue Command System
https://www.youtube.com/watch?v=_ABUuiv8prU If you have ever wondered how modern search and rescue teams coordinate dozens of…
Linux and FreeBSD Operating Systems: Characteristics and Use Cases
1. Definitions and Project Structure 1.1 What Is Linux Linux refers to a kernel created…
Top Amateur Radio Open Source Projects in 2026
Open source software runs a huge part of modern amateur radio. From FT8 contacts to…
Can You Use a Malaysian PMR Walkie Talkie Overseas?
Short answer: You can bring it, but you can’t always use it.Your PMR446 walkie talkie…
Best Amateur Radio Logging Apps for Android and iOS in 2026
If you operate portable, do IOTA, POTA, SOTA, or just want to log QSOs without…
Why Your Phone Battery Health Drops And The Real Difference Between Li-ion, Li-Po, and LiFePO4
Brand new phone. Battery health: 100%. One year later, it shows 92%. After two years,…
The M5Stack Cardputer-Adv and Amateur Radio: 15 Real Possibilities Worth Exploring
Every ham knows the feeling: you see a new gadget and immediately think, "How can…
Understanding ARRL’s Clean Signal Initiative: What It Means for Every HF Operator
If you have spent any time on the HF bands, you have probably noticed the…
Why Do Japan’s APRS-IS Servers Run on FreeBSD? A Deep Dive Into status.aprs2.net
Introduction: What Is APRS-IS and Why Does The OS Matter? If you open https://status.aprs2.net/ right…
How FreeBSD and Ham Radio Still Shape the Future of Wireless Communication
A deep dive into Diane Bruce VA3DB’s “Amateur Radio and FreeBSD” from FreeBSD Journal July/August…
What’s Buzzing on the Bands? 4 Massive Ham Radio Trends Hitting 2026
If you have spun the VFO dial lately or checked out the latest field activations,…
Malaysia’s License-Free Walkie Talkie Frequencies: The 2025 MCMC Update You Need to Know
If you use walkie talkies for convoys, hiking, events, or work sites in Malaysia, the…
Tracking HamRadio.my Projects Uptime with uptime.hamradio.my
If you use any tools or services by 9M2PJU, there’s one link you should bookmark: https://uptime.hamradio.my/status/9m2pju…
APRS.world: The Browser-Based APRS Map That’s Changing How Hams See the World
If you are in amateur radio, you know APRS. Automatic Packet Reporting System lets us…
Why CW and Morse Code Still Thrive in Amateur Radio in 2026: Data, Physics and Practice
Introduction In an era of FT8, satellites, and 5G, the oldest digital mode still accounts…
The Net Control Station’s Secret Weapon: How NetControl.app Is Changing the Way Hams Run Nets
If you've ever sat behind the mic as net control, you know the drill. You…
The TIDRADIO TD-H9 in Black: A Deep Dive into the Most Feature-Packed Handheld Radio Under $70
When it comes to handheld radios, the market is flooded with options that promise the…
Beyond the VPN: The Deep Engineering of Tailscale vs. Twingate
The traditional VPN is a centralized bottleneck. If your server is in New York and…
What is NextDNS?
For anyone serious about privacy, speed, and security, the "Modern DNS" debate usually boils down…
Transforming Your Old Raspberry Pi into a Smart Home Hub with DietPi
Do you have an old Raspberry Pi gathering dust? Instead of letting it go to…
9M2PJU Amateur Radio Contesting Clock
Precision Timing and Propagation Intelligence for Modern Ham Radio Operators When every second counts in…
9M2PJU PRO SIGNAL
Professional Terrain-Aware RF Coverage for Amateur Radio Operators Understanding how far your signal truly reaches…
9M2PJU APRS Web Messenger
Real-Time APRS Messaging, Reimagined for the Modern Operator APRS has long been a powerful communication…
9M2PJU-6 APRS Malaysia Callsign Bot
Instant Callsign Intelligence Over APRS Finding accurate callsign information during on-air operations shouldn’t require a…
APRSMY APRS Net
Amateur radio has always been about more than just voice—it’s an evolving ecosystem of data…
9M2PJU NCS Dashboard
A High-Performance Digital Control Center for Amateur Radio Nets Running an amateur radio net—whether weekly,…
Never Miss a Signal: Synchronize Your Schedule with MY-HamCal
In the fast-paced world of amateur radio, timing is everything. Whether it’s a weekend contest,…
Strengthening the Connection: Discover the New MY-Callbook
For amateur radio operators, the callsign is more than just an ID—it’s a gateway to…
Navigating the Noise: Wisdom for Dealing with the “Willfully Ignorant”
We’ve all been there. You’re engaging in a discussion, perhaps about technical standards, community ethics,…
The Art of Not Engaging: Why You Should Stop Arguing with Irrational People
There is a blunt but brilliant Malay saying that goes: "Jangan buang masa berdebat dengan…
Why Mumble is the Best Kept Secret for Amateur Radio and Privacy-Conscious Civilians
In an era dominated by Discord, Zoom, and WhatsApp, it’s easy to overlook the tools…
QTH.app – Finally a proper APRS client for macOS?
I recently came across a new software for Mac users called QTH.app. If you use…
The Silent Sentinel: Why APRS is the Ultimate Digital Lifeline When the Grid Fails
Imagine a scenario: A hurricane has made landfall, or a massive wildfire has severed fiber…
The Invisible Web: Understanding the Amateur Radio DX Cluster
If you are a DXer (a hunter of long-distance contacts), the "Cluster" is likely your…
Happy New Year 2026
Wishing everyone a safe, prosperous, and happy new year! May 2026 bring you clear frequencies…
ANDRAX-NG v1001: Turning Your Smartphone into a Cyber Weapon
For years, the dream of the "mobile hacker" has been plagued by half-baked tools and…
Unleash the Shark: Why Bruce is the Ultimate Budget “Flipper Zero” Killer
In the world of portable offensive security, the Flipper Zero has been the undisputed king.…
Meet Tunnelto: The High-Performance Open-Source Tunnel Written in Rust
Every developer has been there. You’re building a webhooks integration, testing a mobile app against…
Turning Silicon into Radio: The Magic of Transmitting LoRa Without a Radio Chip
In the world of IoT, if you want to send data over a long distance,…
The Ultimate “DIY APRS TNC”: A Deep Dive into the ESP32APRS Audio Project
For years, if you wanted to set up a serious APRS (Automatic Packet Reporting System)…
Bridging the Analog-Digital Divide: A Deep Dive into ‘APRS pro’ for iOS
For decades, the Amateur Radio world has been somewhat bifurcated. On one side, you have…
How to Properly Change Coolant on Your Honda RS150R (The “Active Bleed” Method)
Is your RS150R running hotter than usual? Or maybe it's just time for that 24,000…
Why “Don” 10? The History of the Army’s Toughest Cable
If you have ever served in the Signals, you have likely encountered D10 Cable. Often…
Clearing the Air: An Overview of bhi Ltd DSP Noise Cancellation for Amateur Radio
In the world of amateur radio, the noise floor is the ultimate adversary. Between rising…
Because “Normal” is Just Boring: JARL Celebrates 100 Years of Adventure
In an age where we carry the entire internet in our pockets and connecting with…
Reimagining APRS: What Amateur Radio Can Learn from the Mesh Networking World
By Jon, N7UV (Adapted from an original discussion on the [email protected] mailing list) Some of…
M5Stack Cardputer Adv: Your Pocket-Sized Powerhouse for Creativity
In a world where technology shrinks faster than our attention spans, the Cardputer ADV M5…
Amateur Radio: A Timeless Tool for Communication, Education, and Community
Exploring the Real-Life Applications, Advantages, and Challenges of Ham Radio Amateur radio, often called "ham…
The ABCs of Air Safety: What Are Aircraft Maintenance Checks?
Air travel is one of the safest modes of transportation, but behind every smooth flight…
sdrtrunk: A Cross-Platform SDR Tool for Trunked Radio Protocols
Welcome to the world of Software Defined Radio (SDR) with sdrtrunk, a powerful Java application…
How to Jam Drones Using ISM Bands: A Comprehensive Guide for Educational Purposes
Introduction: The Rise of ISM Band Drones Drones have become ubiquitous in modern society, from…
How to Jam Fiber Optic Drones: A Comprehensive Guide for Educational Purposes
The Rise of Fiber Optic Drones Fiber optic drones have revolutionized industries ranging from telecommunications…
The Art of Morse Code (CW): Is it Still Relevant in the Digital Age?
In an age dominated by 5G networks, AI-generated text, and instant global video calls, the…
From Zero to Hero: Your Ultimate Guide to Becoming a Ham Radio Operator in Malaysia
Have you ever wanted to talk to astronauts on the ISS, communicate without the internet…
Lazyssh: Tame Your Server Farm with Terminal-Based SSH Management
Are you tired of juggling countless SSH commands, remembering obscure IP addresses, or fumbling with…
Navigating Malaysia’s Monsoon: Guide to Flood Preparedness
The skies darken, the rain becomes relentless, and rivers swell – it's a familiar scene…
Beyond HF: Integrating Icom IP Comms with Starlink for Ultra-Reliable Remote Operations
QRM and poor propagation can ruin a good Field Day or slow down a critical…
Hunting for 2nd Hand Radio Gems? Head to the Malaysian Amateur Radio Flea Market!
LOOKING FOR A 2ND HAND RADIO THAT FITS YOUR BUDGET? If you are a Ham…
Stepping Up or Stepping Back? The Urgent Need for a Good Samaritan Act in Malaysia
Imagine this: You're driving home, and you witness a horrific car accident. Someone is injured,…
MCMC PRIME: Malaysia’s Mobile Lifeline for Critical Communications
In today's interconnected world, the ability to communicate can be the difference between chaos and…
See The Real World Of RF Signals With DADA v3.3
For Amateur Radio operators and RF engineers, the question is always the same: "Will my…
Protecting the Sky: The World’s Leading Anti-Drone Systems (C-UAS)
Drones have become one of the most disruptive technologies of the 21st century. They are…
Understanding Rainbow Tables: How Hackers Crack Password Hashes (and How to Defend Yourself)
In cybersecurity, passwords are often the first and most important line of defense. Yet, attackers…
Understanding Quarter-Wave Stubs Made Easy: An Interactive Tool for Every Ham
In RF engineering, quarter-wave stubs are one of the simplest and most powerful tools we…
How Drone Jamming Works: Guide to Modern Counter-UAS Technology
Consumer drones have become incredibly capable in just a few years. What used to be…
Introducing the PiMesh 1W: Power Up Your Meshtastic Network
Tired of short-range Meshtastic nodes? Ready to build a serious, long-distance gateway or repeater? Say…
BGAN vs Starlink: Which Satellite Network Suits Your Needs?
Satellite communication has revolutionized the way people stay connected in remote areas, at sea, or…
Understanding BGAN: Your Satellite Connection Anywhere in the World
In a world that increasingly relies on constant connectivity, staying online is no longer just…
Flipper Zero & Sub-GHz: What You Need to Know
If you’ve spent any time browsing tech TikTok or security forums, you’ve probably seen a…
ACU-Z1: A Modular, IP-Centric Interoperability Gateway Built for Modern Communications
In operational environments where reliable communication is critical — such as public safety, defense, emergency…
RSP-Z2: A Next-Generation Dual-Channel Interoperability Gateway
Communications environments today often involve a mix of analog radios, IP-based networks, dispatch systems, and…
Meet the Inovato Quadra4K – The Ultimate HamClock Appliance for Every Shack
For amateur radio operators who love monitoring propagation, gray line activity, and solar conditions in…
Stationary Mobile Antenna Mounting by 9W2RYF
In the world of amateur radio, creativity and field innovation often make the biggest difference.…
The Complete History of Jeans and Denim: From Workwear to Global Icon
Few garments have influenced culture, fashion, and identity as profoundly as jeans. What began as…
Gluetun: A Lightweight, All-in-One VPN Client for Docker
For those seeking a flexible and lightweight VPN solution that works seamlessly within Docker, Gluetun…
DADA 1.8 – Ham Radio Distance and Bearing Calculator
One of the most useful tools for amateur radio operators is the ability to quickly…
VERO VR-N7600 Gets Firmware Update v0.8.12-2 With Key Improvements
VERO’s VR-N7600, the smartphone-linked dual-band mobile transceiver, has just received a new firmware update. The…
OpenMANET: Building Affordable Raspberry Pi-Based MANET Radios Using Wi-Fi HaLow
OpenMANET is an open-source initiative aimed at enabling the construction of Mobile Ad-Hoc Network (MANET)…
Run Windows Inside Docker Like Magic: A Look at Dockur/Windows
Virtualization has always been a powerful way to run multiple operating systems on a single…
The Feel Method: Tightening Bolts Without a Torque Wrench
Most repair manuals list torque values for bolts — numbers like 25 Nm or 40…
OpenZiti: Zero Trust Networking Without the Complexity
Modern networks are increasingly difficult to manage. Static IPs, NAT, firewalls, and overlapping subnets create…
NetBird: Open-Source Zero Trust Networking Made Simple
In today’s world, connecting remote teams, home labs, and cloud environments securely is a constant…
SkyRoof: All-in-One SDR and Satellite Tracking for Ham Radio Enthusiasts
For amateur radio operators and satellite enthusiasts, SkyRoof is an exciting open-source Windows application that…
Why Arch Linux Might Be the Best Choice for Amateur Radio Operators
When choosing a Linux distribution for amateur radio use, there’s no shortage of options. From…
RemoteShack: The Ultimate Remote Ham Radio Experience, Built for Real Operators
In today’s fast-paced, always-connected world, flexibility is everything — and ham radio is no exception.…
Remoterig: Flexible Remote Ham Radio Operation Without the PC Hassle
In the world of remote amateur radio operation, Remoterig stands out for its hardware-first, PC-free…
