FREQUENCY/SPAN 43 Display CenterFrequency reading Set frequency span Panel operation 1. Press the Span key. Span 2. Press F1 (Span). Span3 GHzF 1 3. Enter the value using the Numerical and Unit keys, Arrow keys, and Scroll knob. BK SPdBEnterGHz /SecmSecMHz /kHz / Secμ Range 2kHz to 3GHz * Arrow keys & Scroll knob resolution: 1-2-5 sequence (0 [zero span], 2kHz, 5kHz, 10kHz, 20kHz, 50kHz, .....1GHz, 2GHz, 3GHz) Display SpanSpan reading Note • Center frequency and span settings automatically change according to start and stop frequency settings, and vice versa. • If the span becomes smaller than the CHBW (channel bandwidth) in the ACPR or OCBW measurement (page82), the warning “Span is less than CHBW!” appears in the command window.