Skip to content

Experimental Engineering

  • The Engineer
    • The Tools
    • The Shack
    • OpenPGP Public Key
    • Contact The Engineer
  • Circuit Simulator
  • Project List
  • Photo Albums
    • Whitby Camping Trip – August 2020
    • Electric Glassware Collection
    • Glasgow Transport Museum 2018
    • Astle Park Steam Rally 2017
    • Anson Engine Museum 29-08-16
    • Download Festival Photo Albums
      • Download Festival 2009
      • Download Festival 2010
      • Download Festival 2011
      • Download Festival 2014
      • Download Festival 2015
      • Download Festival 2016
      • Download Festival 2017
        • Demolition Download IV
      • Download Festival 2018
        • Demolition Download V
        • Lords Of Lightning
        • Circus Of Horrors
      • Download Festival 2019
      • Download Festival 2020
      • Download Festival 2022

Tag: SMA

Cat Links Randoms

Wireless Energy Management SmartSensor

Posted on April 26, 2018 The Engineer

Here’s another random bit of RF tech, I’m told this is a wireless energy management sensor, however I wasn’t able to find anything similar on the interwebs. It’s powered by a standard 9v PP3 battery. System control is handled by this Microchip PIC18F2520 Enhanced Flash microcontroller, this has an onboard

Continue readingWireless Energy Management SmartSensor

Cat Links Ameteur Radio

Stock Baofeng Antenna Problems

Posted on July 25, 2015July 28, 2015 The Engineer

Recently I’ve noticed my usual mobile rig, the Baofeng UV-5R, has had very poor receive, and non-existent transmit. I did a power test on the radio, and confirmed it was still outputting it’s rated RF power. Trying another antenna proved that the radio was fine. Time to tear down the

Continue readingStock Baofeng Antenna Problems

Cat Links Ameteur Radio, Arduino, Personal Project

Arduino SWR Power Meter Final Parts & Calibration

Posted on July 24, 2015July 24, 2015 The Engineer

Now the final bits have arrived for the SWR Meter module, I can do the final assembly. Here the SMA connectors are installed on the side of the eBay meter, for forward & reverse power tap. These are simply tee’d off the wiring inside the meter where it connects to

Continue readingArduino SWR Power Meter Final Parts & Calibration

Cat Links Ameteur Radio, Arduino, Hacks, Personal Project

Arduino Based SWR/PWR Meter – The Board

Posted on July 8, 2015February 25, 2017 The Engineer

I recently posted about a small analog SWR/Power meter I got from eBay, and figured it needed some improvement. After some web searching I located a project by ON7EQ, an Arduino sketch to read SWR & RF power from any SWR bridge. The Arduino code is on the original author’s

Continue readingArduino Based SWR/PWR Meter – The Board

Cat Links Personal Project

AD9850 DDS VFO PCB & Schematic Layout

Posted on November 1, 2014November 6, 2014 The Engineer

I recently came across a design for an Arduino controlled AD9850 DDS module, created by AD7C, so I figured I would release my Eagle CAD design for the PCB here. It is a mainly single-sided layout, only a few links on the top side are needed so this is easy

Continue readingAD9850 DDS VFO PCB & Schematic Layout

Tip Jar

If you’ve found my content useful, please consider leaving a donation by clicking the Tip Jar below!
All collected funds go towards new content & the costs of keeping the server online.

  • Electronic Calculators
  • Ohm’s Law Calculator
  • Grid Square Locator
  • Crimp Connector Types

Blogroll

  • Arduino ccTalk Tutorials
  • Distant Signal Radio
  • Skippy's Random Ramblings

Hardware Interfacing

  • Arduino ccTalk Tutorials

Archives

  • Helium Neon Lasers
    • He-Ne Lasers – Introduction
    • Applications of a 1mW Helium-Neon Laser
    • He-Ne Laser Safety
      • Laser Safety Classifications
    • Theory of Operation, Modes, Coherence Length
    • He-Ne Laser Tubes, Heads, Structure, Power Requirements, Lifetime
    • Power Requirements for He-Ne Lasers
      • Modular He-Ne Laser Power Supply
    • Wavelengths, Beam Characteristics
    • Magnets in High Power or Precision He-Ne Laser Heads
    • Internal Mirror He-Ne Tubes up to 35 mW – Red and Other Colours
    • Viewing Spectral Lines in Discharge, Other Colours in Output
    • Demonstration He-Ne Lasers, Weatherproofing
    • Interesting, Strange, and Unidentified He-Ne Lasers

Recent Posts

  • Brsk Updates – A New Network Link
  • Melles-Griot 05-LHR-088 Helium-Neon Laser
  • Infrastructure Updates & The Cost Of Living
  • FTTP Has Arrived – With Some Caveats
  • DIY Thermal Laser Power Sensor Build
Copyright © 2022 Experimental Engineering | Signify Dark by WEN Themes
Scroll Up