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Amateur Radio, Tech Insights and Product Reviews

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amateur radio ham radio open hardware radio raspberry pi transmitter

Playing with RF: rpitx2 Turns Your Raspberry Pi into a Radio Transmitter

9M2PJU August 16, 2025

If you're into amateur radio and love to tinker, here's something weirdly fun to experiment…

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antenna mfj receiver rf transceiver transmitter
9M2PJU 0 Comments

Automatic TX/RX Antenna Switch

Sometimes it is necessary to use separate antennas for receive and transmit. For example you…

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September 28, 2015
modulation radio receiver transceiver transmitter
9M2PJU 0 Comments

SSB – Single sideband modulation

a summary, information or overview describing what is SSB modulation, and how single sideband modulation…

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September 15, 2013
how to inductance manual mfj standing wave radio transmitter
9M2PJU 1 Comments

How To Use MFJ-945E Mobile Tuner

Using the MFJ-945E: The INDUCTOR switch on the MFJ-945E represents maximum inductance at position A…

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April 26, 2011
amateur radio diode do it yourself hacking ham radio homebrew ic-706 icom mk ii g modification transmitter wideband
9M2PJU 0 Comments

ICOM IC-706 MK II G Wideband Transmit Mod

This modification of the Icom 706 MK IIG ( At Your Own Risk! ) will…

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April 2, 2010
coaxial resistor racal termaline tra 3756 tra 3775 transmitter
9M2PJU 0 Comments

RACAL TRA 3756 And TRA 3775 1 Kilo Watt With Dummy Load

           

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December 24, 2009

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  21. https://los.hamradio.my
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  23. https://qsomap.hamradio.my

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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