Specifications
1-2 2715 Spectrum Analyzer Service ManualTable1 -1: CATV Characteristics
Characteristic Description
Input Configuration
All except Option 50 75 ΩFemale F connector
Option 50 50 ΩType N connector
Channel Selection The visual and aural carriers are displayed when the channel number is entered, or
either [y]or [b]next to [CHAN/FREQ] is pressed
Tune Configuration STD (73.603), HRC (73.605), IRC (73.612), and Custom1
Channel Range 0to999
1
Frequency Range
(except Opt 50 and Opt 75)
1MHzto1.8GHz
2, Preamplimited to 600 MHz
Frequency Range
(Opt 50 and Opt 75)
1 MHz to 2.15 GHz2, Preamp limited to 600MHz
Visual Carrier Frequency
Measurement
Accuracy is dependent on the accuracy of the spectrum analyzer — see Frequency
Accuracy in Table1 --2.
Method Internal Counter
Resolution 1Hz
Accuracy 5×10-7 ×Carrier Frequency ±10 Hz, ±1 Least Significant Digit
@ 55.25 MHz (Ch 2) worst case is ±38 Hz
@ 325.25 MHz (Ch 41) worst case is ±173 Hz
@ 643.25 MHz (Ch 94) worst case is ±332 Hz
Visual-to-Aural Carrier FrequencyM easurement Aural carrier measured relative to the visual carrier
Method Internal Counter
Difference Range 1 MHz t o 10 MHz3for an amplitude difference of ≤30 dB and aural C/N ≥15 dB
(300 kHz RBW)
Resolution 1Hz
Accuracy ±15 Hz for visual-to-aural carrier difference ≤8MHz
Visual Carrier PeakLevel M easurement Absolut e peak amplitude of visual carrier measured with PREAMP OFF
Accurate Frequency and
Amplitude
Visual carrier frequency measurement
Visual-to-aural carrier frequency measurement
Visual carrier peakl evel measurement
Visual-to-aural carrierl evel differencem easurement
Accurate Amplitude Only Visual carrier peak level measurement
Visual-to-aural carrierl evel differencem easurement
Fast AmplitudeOnly Carrier amplitudes are measured using marker values in 10 dB/div vertical scale
Amplitude Range -- 18 dBmV to +58.8 dBmV4for visual C/N ≥30 dB (300 kHz RBW)
1Configured using Cable TV RF Measurements Software.
2Dependent on selected channel table. Frequencies above 1.8 GHz are not supported by the Cable TV RF Measurements
Software.
3Dependent on selected channel table.
4Totalinput power (all signals included) cannot exceed +70 dBmV.