- Published in issue 5/1997 on page 14
accurate measurements with simple means
High-frequency signals cannot be measured with standard voltmeters or multimeters. Such voltages, which are commonplace in receivers, transmitters and other high-frequency equipment, can only be measured with a special, wide-band millivoltmeter. Commercial versions of this kind of instrument tend to be expensive. This article shows that if certain limitations are acceptable, it is possible to construct a suitable instrument with modest means.