Small Projects using PC Boards from ExpressPCB 

In Progress -- Suggestions and corrections welcome 

Updated September 2016


Additional Printed circuit boards are now available

Chuck Steer, WA3IAC, is no longer offering kits.

Update - Simple Yet Still Fool-Resistant Sequencer

Simple Yet Still Fool-Resistant Sequencer - Rev B

*latest PC Boards available*

New - A Simple Low-cost 5760 MHz Transverter
Updated from Microwave Update 2015

 A_Simple_Low-cost_5760_MHz_Transverter
Update & Enhancements March 2016

*latest PC Boards available*


Update - Simple Transverter for 2304 or 3456 MHz
Multiband Microwave Transverters for the Rover

 Simple Transverter for 2304 or 3456 MHz - Update & Enhancements

*latest PC Boards available*

New - LO or Personal Beacon for 5760 or 3456 MHz
Flexible Multiplier Board

 LO or Personal Beacon for 5760 or 3456 MHz

*PC Boards available*


New - Simple Omnidirectional Antenna for 1296 MHz

Simple Omnidirectional Antenna for 1296 MHz
New - Single Stub Impedance Matching

Single Stub Impedance Matching
New - 1296 MHz Transverter Update and Enhancements
Multiband Microwave Transverters for the Rover

1296 MHz Transverter Update and Enhancements - for better performance

*latest PC Boards available*

New - Simple Frequency Doublers

Simple Frequency Doublers - High Performance from 10 MHz thru 1296 MHz

PC board file for ExpressPCB - make your own
PC board file for OSH Park - make your own
Low cost for very small boards - www.oshpark.com
New - Relay Driver for 28 volt Coax Relays

Relay Driver for 28 volt Coax Relays

PC board file for ExpressPCB - make your own
PC board file for OSH Park - make your own
Low cost for very small boards - www.oshpark.com
New - From Microwave Update 2014
Simple Broadband Power Amplifiers

Simple Broadband Power Amplifiers - using resistive feedback
New - from Microwave Update 2014
Combline Filters for UHF and Microwaves - High Performance

Combline Filters for VHF and UHF Examples with dimensions for 50 thru 432 Mz.

Designing Combline Filters with Free Software
New - from Microwave Update 2014
Altoids Tin Filters for UHF and Microwaves
Altoids Tin Filters - Easy to build.

Video - SemiRigid Cable Preparation
New - From Microwave Update 2014
Simple and Cheap MMIC Preamps for UHF and Microwaves

Simple and Cheap MMIC Preamps - Who needs a GaAsFET?

*PC Boards available*

From Microwavelengths, QST, July 2013
Sensitive RF Detector for Sun Noise and other uses

Sensitive RF Detector Board
PC board file for ExpressPCB included - make your own
PC board file for OSH Park - make your own
Low cost for very small boards - www.oshpark.com

PowerPoint Tutorial - Designing PC boards with free ExpressPCB software by K3TUF and W1GHZ

Locked VCXOs for Stable Microwave Local Oscillators with Low Phase Noise
Updated from Microwave Update 2012 with Phase Noise

96 MHz VCXO locked to 10 MHz reference and Phase Noise Plot
VCXO for Microwave LO Board updated July 2013

NEW - Update January 2015

*PC Boards available*

PC Board for A Flexible VCXO Locking Board - locks VCXO to GPS or 10 MHz reference
Updated from Microwave Update 2012

Left - 10 MHz VCXO locked to GPS ........................ Right - 16 MHz VCXO locked to 10 MHz reference
A Flexible VCXO Locking Board

*PC Boards available*

PC Board for ADL5324 Power Amplifier for Cheap and Simple Microwave Transverters
ADL5324 Power Amplifier for Cheap and Simple Microwave Transverters

*PC Boards available*

PC Board for Modest Power Amplifier for Cheap and Simple Microwave Transverters
Modest Power Amplifier for Cheap and Simple Microwave Transverters using GVA-84

*PC Boards available*

PC board for A Panadapter for the FT-817 using the Funcube Dongle, by N1JEZ


N1JEZ Panadapter 10 GHz Screenshot, board, and installed in FT-817

PC Board for FT-817 Panadapter

Correction to Panadapter Board

A Panadapter for the FT-817 using the Funcube Dongle by N1JEZ

*PC Boards available*

10 MHz Filter for GPS Frequency Reference



10 MHz Filter for GPS Frequency Reference

PC Board Not Needed

Miniverter-F

A 2-meter transverter for Flex-1500 and Microwave Transverters

Miniverter-F for 2 meters, also 222 or 432 MHz

*PC Boards available*

A Personal Beacon for 10 GHz

10 GHz Personal Beacon or LO for 8 to 12 GHz

Update and construction hints

*PC Boards available*

Multiband Microwave Transverters for the Rover


902, 1296, 2304 and 3456 MHz Simple and Cheap

*PC Boards available*

An Even More Fool-Resistant Conditional Sequencer

Even More Fool-Resistant Conditional Sequencer

Update November 2012

*PC Boards available*

Power Detector Board - VHF thru 10 GHz

Power Detector IC good to > 10 GHz

*PC Boards available*

From QST April 2007 "Microwavelengths"

RF Power Reference for power meter calibration

Microwave Update 2005


A Homebrew Ratiometer for Antenna Measurement, or a Handheld Network Analyzer


Updated 20 March 2007


LED bargraph indicator used above

*PC Boards available*


Battery-sharing Switch
*PC Boards available*


Chassis mounts and distribution boards for PowerPoles
Anderson PowerPoles are the connector of choice for 12 volt operation

Elegant PowerPole board fits in electrical outlet box

*PC Boards available* - Elegant distribution board for 4 or 6 PowerPoles

All-band portable power meter - 160 Meters to 10 GHz
Kit ABPM now available from Down East Microwave
Assembly Notes and Pictures

Fan speed controller - fan runs with a gentle purr at room temperature, speed increases as temperature rises. Can sense heatsink temperature.

*PC Boards available*


Lossless Current Monitor - 20 or 50 Amps

*PC Boards available*


LED Voltage Monitor -
A Single LED Battery Status Indicator for the Rover

*PC Boards available*


Utility Board for Op-amps and Comparators

*PC Boards available*


Tonemeter -
An Audio Tone Indicator for Tuning or Antenna Measuring

*PC Boards available*


A Voltage Standard for the Hamshack

Printed Hairpin Filters -
Designed using Ansoft Serenade SV software

222 MHz Transverter for the FT-817
 

Download Miniverter article


Two-stage MMIC amplifier in Pomona box


Simple, yet still "fool-resistant," sequencer for microwave transverters 


Enhanced version of "fool-resistant" sequencer with Power Output LED


Load tester for batteries and power supplies


  What's this ExpressPCB stuff, anyhow?
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