A spectrometer allowing the measurement of signals with spin-spin relaxation times as short as 0.5 μs has been developed. It consists of a transmitter based on a commercial spectrometer and a homemade receiver. The acquired signals are imported in the software of the commercial spectrometer. This is a simple and rather cheap way to transform a commercial rig into a spectrometer allowing measurements on systems with short T2 such as found in magnetic systems. © 2005 Elsevier Inc. All rights reserved.