A popular part of amateur radio is building and equipment and projects. Many hams find they need test equipment to fully enjoy the experience—here are some projects to get you started.
- A Low Cost DDS Function Generator
QST November, 2005 -- Build this useful signal source around a dedicated DDS ICand gain a valuable addition to your test bench.
- The Tandem Match -- An Accurate Directional Wattmeter
The ARRL Handbook, 1999, pp. 22.36 -- 22.42
- A Spectrum Analyzer for the Radio Amateur -- Part 1
QST August 1998, pp. 35-43
Simple and easy to build, this radio-frequency spectrum analyzer is capable of useful measurements in the 50kHz to 70 MHz region.
- A Spectrum Analyzer for the Radio Amateur -- Part 2
QST September 1998, pp. 37-40
Feedback -- QST November 1999, p. 74
- A GPS-Based Frequency Standard
QST July 1998, pp. 37-44
Build this modern and highly accurate frequency standard that uses the GPS timing pulse instead of WWV.
Feedback: QST October 1998, p. 81. Figure 3, reverse the identities of R5 and R6.
- Build a Return Loss Bridge
QST September 1997, pp. 34-36
Used with your DVM, this simple bridge, diode detector and return loss techniques can help you measure cable loss and SWR at the antenna
- A Pocket-Size, Direct-Reading VHF SWR Meter
QST February 1997, pp. 33-36
This easy-to-build LED bargraph SWR meter goes with you anywhere.
- A Relative-Indication Audible Meter Reader
QST March 1997, pp. 36-39
This simple circuit allows blind - and sighted - hams to identify meter readings audibly.
- A Simple and Accurate QRP Directional Wattmeter
QST February 1990, pp. 19-23, 36
A directional wattmeter that's simple, portable, and accurate from 10 watts down to 5 milliwatts!
- The (Not Quite) Ultimate Dummy Load
QST January 1981, pp. 35-37
This dummy load made from carbon resistors will dissipate 132 watts.
- Simple RF-Power Measurement
QST June 2001, pp. 38-43
Measure power from nanowatts to 100 watts
Feedback: QST August 2001, p. 76
- Swept Receiver Dynamic Range Testing in the ARRL Laboratory
QEX June 1996, pp. 3-12
- Improved Dynamic-Range Testing
QEX Jul/Aug 2002, pp. 46-52
- The "No Fibbin'" RF Field Strength Meter
QST August 2002, pp. 28-29
A simple effective and easy field strength meter.
Feedback: QST September 2002 p.88 (schematic error, included in main article)
- An Inside Picture of Directional Wattmetters
QST April 1959, pp. 24-28
A tutorial, What They Do—How They Do It
- An RF Step Attenuator
QST Jun 1995
When you can find a good, commercially made RF attenuator, expect to pay the price. Here’s where doing it yourself can provide you with what you need.inexpensively.
- New/Used Test Equipment Buyer's Guide
A buyer's guide for new and used test equipment that provides much useful information, including electrical specs, lists of suppliers, and typical list, street, and used prices.
BASIC computing platform for ham radio experiments
- "Software for hams, engineers and technicians from Jim Tonne W4ENE"