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Ham Radio Workbench Podcast

This podcast is your bi-weekly deep dive on making, DIY, electronics, and technical topics of interest to the ham radio operator. Join your hosts George KJ6VU and Jeremy KF7IJZ as they discuss current developments in ham radio while introducing listeners to a plethora of topics and skills such as test equipment, 3D Printing, Arduino, Raspberry Pi, and more.

QRP Smarty Load

May 16, 2018

Ham Radio Workbench QRP Smarty Load

Introduction

Our 21st century take on a classic piece of Ham Radio gear - we took a run of the mill QRP dummy load design and added an Arduino to create the Smarty Load.  This project features:

  • Up to 25 watts (Caution!  This unit will get hot - recommended to run with ventilation or a small fan to assist in...


QRP Dummy Load

May 16, 2018

Ham Radio Workbench QRP Dummy Load

Introduction

Another perfect introduction to soldering, this project is a QRP Dummy Load rated for up to 25 Watts with an LED that indicates the presence of RF.  Caution! - This unit will get hot!  Use with good ventilation and maybe a small fan to dissipate heat!

Documentation


12V DC Outlet Strip

May 15, 2018

Ham Radio Workbench 12V DC Outlet Strip Project Board

Introduction

A perfect introduction to soldering!  The Ham Radio Workbench 12V DC Outlet Strip allows you to share a single 12v power source across four other devices.  This project features:

  • Designed for Anderson Powerpole Connectors
  • Total current capacity not to exceed 25 Amps @ 12V nominal
  • Four fuse holders that...


4-Port Programmable Coax Relay

May 13, 2018

4-Port Programmable Coax Relay

Ham Radio Workbench - 4-Port Programmable Coax Relay

Introduction

Allows you to connect one radio to four antennas or four radios to one antenna.  Need a sophisticated 4 to 4 matrix?  Purchase two and you can write custom firmware to connect any one of four ports to any one of another four ports.  This project features:

  • Connects one of...


May 8, 2018

HRWB049 - Understanding RF Receiver Specifications - Banner

Eric Swartz WA6HHQ, co-founder of Elecraft, joins us to guide our understanding of RF receiver performance specifications.  Eric introduces us to common receiver specs such as Sensitivity, Noise Floor, Dynamic Range, Intermod Dynamic Range, Phase Noise, and RMDR.  He tells us what they mean in real-world receiver...