INSTRUMENT DESCRIPTION This instrument is a compact and portable spectrum analyzer for the 9 kHz to 1.8 GHz frequency range. Microprocessor control of most functions simplifies and enhances operation. The spectrum analyzer's main features are: Precision Measurements - Menu-selectable routines provide directions for normalizing the internal reference (calibrator signal) to external frequency and amplitude references. After the internal reference is normalized, other menu selections providefor normalizing any instrument measurement parameter. Menu Operation - Menu-selected routines provide diagnostics, normalization, adjustments, and set-up of basic parameters such as center frequency, frequency span, reference level, vertical scale factor and resolution bandwidth. Each menu is described under "The Menus - Ultimate Flexibility" in the 2711 and 2712 spectrum analyzer Users Manuals. Single and A Markers - A single marker can be enabled to show the frequency and amplitude of a specific point on the display. Delta (A) markers show the difference frequency and amplitude between any selected two points on the displayed waveform. Tracking - Signal tracking holds a drifting signal to center screen. Center Measure - When this function is activated, the instrument completes the sweep and centers the signal nearest center-screen or, with markers activated, the signal nearest the marker. A readout of center frequency and amplitude is displayed (this requires Option 02 on the 2711 spectrum analyzer). Display-lnthe Spectral mode, the numericalvalues of signals and setup parameters are displayed. In the Menu mode, a menu with its selections and prompts is displayed. Any error, warning, or information messages are displayed in both modes.