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2715 Spectrum Analyzer Service Manual
1-13
Table 1- 2: Frequency-Related Characteristics (Cont.)
Characteri stic Supplemental InformationPerform ance Requirement
Resolution Bandwidth (6 dB down) Resolution bandwidth selecti ons are:
5 MHz, 1 MHz, 300 kHz, 100 kHz,
30 kHz, 10 kHz, 3 kHz, 1 kHz, and
300 Hz for the spectrum analyzer
Shape Factor (60 dB/6 dB) 7:1 or less for all resolution bandwidths
≤1MHz
Noise Sidebands ≤--70 dBc at 30X Resolut ion Bandwidth
for all resolution bandwidths ≤100 kHz
Video Filter Reduces video bandwidth to about 1% of
the selected resolution bandwidth; or one
of 12 video filters (3 Hz, 10 Hz, 30 Hz,
100 Hz, 300 Hz, 1 kHz, 3 kHz, 10 kHz,
30 kHz, 100 kHz, 300 kHz, or W IDE) can
be selected from the UTIL menu
Table 1- 3: Frequency/Amplitude Related Characteristics
Characteristic Performance Requirement Supplemental Information
Marker The frequency and amplitude valu es of
the marker position are displayed and
are preceded by the let ter M
[MKR] [ ' ] and [MKR] [ a ] position the
marker to the next right or left signal
peak, respectively
Accuracy
Frequency Same as SPAN/DIV
Amplitude A function of the reference level, vertical
scale factor, and normalizations (see
Display Dynamic Range on page 1--15)
Also, flatness corrections while in CATV
mode for range of 15 MHz to 1.105 GHz
Delta Marker When activated, a second marker is
displayed at the same frequency as the
first marker. This is the “Reference
Marker”
The FREQ/MARKERS control may be
used to position the first marker; the
frequency and amplitude differences
between markers are readouts preceded
by the letter D
Accuracy
Frequency 1 PPM ±10 Hz of the higher marker
frequency
With both signals counted
Amplitude Same as Marker