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Amateur Radio, Tech Insights and Product Reviews

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type of modulation
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Understanding Emission Designators for APRS and Digital Modes on 2m and 70cm Bands

9M2PJU July 11, 2025

When working with APRS (Automatic Packet Reporting System), digital modes, or new technologies like LoRa…

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9M2PJU 2 Comments

Best Operating Systems for Raspberry Pi in Amateur Radio Use

Whether you're setting up an APRS iGate, running digital modes, or experimenting with SDR, the…

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July 11, 2025
9M2PJU APRS Passcode Generator Android App
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9M2PJU 0 Comments

9M2PJU APRS Passcode Generator Android App

Whether you're a seasoned ham or just getting started with APRS (Automatic Packet Reporting System),…

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July 7, 2025
GPLv3 logo
free open source software free software foundation GNU public license GPL
9M2PJU 0 Comments

Understanding the GPLv3 License

When you dive into the world of open-source software, you’ll eventually come across different licenses—each…

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July 3, 2025
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9M2PJU 0 Comments

Calling All LoRa APRS Enthusiasts – Let’s Build Something Awesome Together!

Hey everyone! 👋 I just published a new GitHub project called Awesome LoRa APRS —…

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July 1, 2025
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9M2PJU 0 Comments

How Radio Spectrum Works in Malaysia

If you've ever used Wi-Fi, tuned into a radio station, made a phone call, or…

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June 25, 2025
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9M2PJU 0 Comments

Project Starbeam: A Modular Signal Intelligence Platform for Tactical & Security Applications

Project Starbeam is here—and it’s unlike anything else in the open-source hardware world. Designed for…

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June 12, 2025
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9M2PJU 0 Comments

Antenna Theory for Radio Communications

If you've mastered the basics—like wavelength, antenna length, and SWR—it's time to take a deeper…

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June 10, 2025
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9M2PJU 0 Comments

Understanding Duty Cycle in Radio Communications: How It Affects Amateur and Tactical Radios

When discussing radio communications, one term that often comes up—especially in the context of performance,…

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May 24, 2025
signal sdr pro
hackrf LimeSDR PlutoSDR programmable rtl sdr SDR SignalSDR Pro software defined radio usrp
9M2PJU 0 Comments

SignalSDR Pro: The Compact, High-Performance SDR Solution

In the evolving world of Software-Defined Radio (SDR), having a powerful yet compact device can…

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March 23, 2025
ladder lane
9M2PJU
9M2PJU 0 Comments

Understanding Parallel Circular Conductor Transmission Line Calculations

Transmission lines play a crucial role in radio communications, ensuring efficient signal transfer between antennas…

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March 21, 2025
NA7Q APRSDroid BLE
amateur radio APRS automatic packet reporting system bluetooth KISS TNC ham radio LoRa APRS Tracker NA7Q APRSDroid
9M2PJU 0 Comments

How to Use NA7Q APRSDroid Mod with LoRa APRS Tracker in BLE and KISS Mode TNC

Introduction to APRSDroid and LoRa APRS Tracker APRSDroid is a popular Android application that allows…

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March 21, 2025
Z1000 transceiver
amateur radio electronics ham radio transceiver
9M2PJU 0 Comments

Understanding Transmitter Duty Cycle and Digital Modes

By Mason Turner, AF4MT What is Duty Cycle? In the world of amateur radio, duty…

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March 12, 2025
The Essential VDE Toolkit for Ham Radio Operators: Wera Kraftform Kompakt VDE 16 Torque Extra Slim Screwdriver set
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9M2PJU 0 Comments

The Essential VDE Toolkit for Ham Radio Operators: Wera Kraftform Kompakt VDE 16 Torque Extra Slim Review

In the world of amateur radio and professional electrical work, precision and safety are not…

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February 27, 2025

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  20. https://morserunner.hamradio.my
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9M2PJU Google Chrome Extensions:

  1. 9M2PJU Malaysian Ham Radio Callsign Search
  2. 9M2PJU APRS Pass Code Generator
  3. 9M2PJU Watt to dBm Converter
  4. 9M2PJU Ohm's Law Calculator
  5. 9M2PJU Grid Locator Finder
  6. 9M2PJU Dipole Antenna Calculator
  7. 9M2PJU Resonance Calculator
  8. 9M2PJU IPv4 Calculator
  9. 9M2PJU Classic Cipher Tool
  10. 9M2PJU Mils To Degrees Converter
  11. 9M2PJU Islamic Prayer Times
  12. 9M2PJU Easy Recipe Finder
  13. 9M2PJU Drain Calculator
  14. 9M2PJU SWR Calculator
  15. 9M2PJU Quran Verse of the Day
  16. 9M2PJU Enigma Machine Simulator
  17. 9M2PJU Recharge Calculator
  18. 9M2PJU Malaysia Electricity Calculator
  19. 9M2PJU Text To Morse Code Converter
  20. 9M2PJU RSA Key Generator

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