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2715 Spectrum Analyzer Service Manual
1-11
Table 1- 2: Frequency-Related Characteristics
Characteristic Performance Requirement Supplemental Information
Channel Tuned with keypad, [CHAN/FREQ] [ y ],
or [CHAN/FREQ] [ b ],accordingtothe
selected channel table
Frequency
Range All except Option 50 and Option 75:
9 kHz to 1.8 GHz
Option 50 and Option 75: 9 kHz to
2.15 GHz
Tuned with keypad, [CHAN/FREQ] [ y ],
[CHAN/FREQ] [ b ], FREQ/MARKERS
knob, UTIL menu, or MKR/FREQ menu
Accuracy 5 × 10
-- 7
of center frequency ±10 Hz ±1
least significant digit
Assumes zero drift since last
normaliz ation procedure
Drift
Long Term (One Year) ±2 PPM/year
Short Term (SPAN/DIV ≤20 kHz) All except Option 50 and Option 75:
≤400 Hz up to 1.8 GHz
Option 50 and Option 75: 500 Hz above
1.8 GHz
With frequency corrections enabled
Readout Resolution 1 kHz or 1 Hz (counter readout), menu
selectable
Frequency Span/Div
Range Using
[SPAN/DIV] [ y ] and [SPAN/DIV] [ b ]
buttons, selections in a 1--2 --5 sequence
Using the keypad or UTIL menu,
select any value from
100 MHz/div to 1 kHz/div.
In MAXSPAN,
180 MHz/div (All except Option 50 and
Option 75) or
215 MHz/div (Option 50 and Option 75)
In ZERO SPAN, 0 Hz/div
Accuracy/Linearity Within 3% Measured over the center 8 divisions
Flatness
(Relative to the Reference Level at 100 MHz)
All instruments:
±2dB9KHzto1.8GHz
Option 50 and Option 75: ±3 dB above
1.8 GHz
Measured with 10 dB of RF Attenuation
and PREAMP off
Flatness is affected by:
H Input voltage standing-wave ratio
(VSWR)
H Gain variation
H Mixer conversion