W1GHZ.org domain page

(Note W1GHZ.cx has gone away) (Note Mirror on qsl.net is not always up to date)

Updated September 2017

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W1GHZ (N1BWT) 10 GHz home page

QEX articles by W1GHZ
Small Projects
Phase Noise and MDS

New - Smart Fool-resistant Conditional Sequencer
From Microwave Update 2017

Sequencer Mark 4 - A Smart Fool-resistant Conditional Sequencer
Arduino sketch (code)

New - A Simple Low-cost 10 GHz Transverter
From Eastern VHF/UHF Conference 2017

A Simple & Cheap 10368 MHz Transverter

Update - Simple Yet Still Fool-Resistant Sequencer

Simple Yet Still Fool-Resistant Sequencer - Rev B

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

A_Simple_Low-cost_5760_MHz_Transverter
Update and Enhancements March 2016

Update - Simple Transverter for 2304 or 3456 MHz

Simple Transverter for 2304 or 3456 MHz - Update & Enhancements

New - LO or Personal Beacon for 5760 or 3456 MHz
from Microwave Update 2015

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

New - Simple Omnidirectional Antenna for 1296 MHz

Simple Omnidirectional Antenna for 1296 MHz

New - Single Stub Impedance Matching

Single Stub Impedance Matching

New - 6 Meter Filter with Harmonic Suppression
from 2015 Eastern VHF-UHF Conference

6 Meter Filter with Harmonic Suppression

New - 1296 MHz Transverter Update and Enhancements
Multiband Microwave Transverters for the Rover

1296 MHz Transverter Update and Enhancements - for better performance

New - Simple Frequency Doublers

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

New - Relay Driver for 28 volt Coax Relays

Relay Driver for 28 volt Coax Relays

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.

New - from Microwave Update 2014
Altoids Tin Filters for UHF and Microwaves
Altoids Tin Filters - Easy to build.

New - From Microwave Update 2014
Simple and Cheap MMIC Preamps for UHF and Microwaves

Simple and Cheap MMIC Preamps - Who needs a GaAsFET?

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

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

NEW - Update January 2015

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

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

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

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

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

A Personal Beacon for 10 GHz

10 GHz Personal Beacon or LO for 8 to 12 GHz

Multiband Microwave Transverters for the Rover

902, 1296, 2304 and 3456 MHz Simple and Cheap

Improved Dualband Feedhorn for 10 and 24 GHz

New: One-piece horn with Low-pass filter for better isolation

BD_2004 - now includes grids beginning with Q

Palm Software

January 2003 QST: 222 MHz Transverter for the Yaesu FT-817

New stuff I haven't organized yet

Small projects with PC boards

Last light at the Big Ear Radiotelescope

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