Build a 20-600 MHz spectrum monitor. Use it to visually display an amplitude spectrum on an oscilloscope or as a receiver to help identify FM signals. Est. cost: $187 (kit).
ELECTRONICS EXPERIMENTERS HANDBOOK 1991 pg. 45, 150
Tracking down bugs (RF eavesdropping devices) using a spectrum analyzer.
ELECTRONICS EXPERIMENTERS HANDBOOK 1991 pg. 55
The spectrum analyzer. A primer on this important test instrument where vertical pulse height represents signal strength and horizontal pulse position represents frequency.
ELECTRONICS NOW Sep 1993 (v.64#9) pg. 46
Radio-frequency spectrum analyzer. Built for hobby applications related to radio-controlled (R/C) model planes. Est. cost: $100. Part 1. Theory of operation.
ELECTRONICS NOW Sep 1996 (v.67#9) pg. 29
Radio-frequency spectrum analyzer. Part 2. Construction.
ELECTRONICS NOW Oct 1996 (v.67#10) pg. 55
Added Info ELECTRONICS NOW Jan 1997 (v.68#1) pg. 18
Radio-frequency spectrum analyzer. Part 3. Assembly.
ELECTRONICS NOW Nov 1996 (v.67#11) pg. 50
Experimenting with an r-f spectrum analyzer. Useful in testing and alignment of a radio-frequency (r-f) transmitter.
MODERN ELECTRONICS [2] Mar 1990 (v.7#3) pg. 60
Build a spectrum analyzer accessory circuit for an oscilloscope.
POPULAR ELECTRONICS [2] Dec 1991 (v.8#12) pg. 76
PC-based spectrum analyzer. Covers 0.1 to 810-MHz. Provides a way to measure such parameters as power, harmonic distortion, frequency response, and the amplitudes of complex components. Est. cost: $300. Part 1. Theory of operation.
RADIO-ELECTRONICS Aug 1991 (v.62#8) pg. 33
PC-based spectrum analyzer. Part 2. Construction and operating software.
RADIO-ELECTRONICS Sep 1991 (v.62#9) pg. 40