Specifications
1-6 2715 Spectrum Analyzer Service Manual
Table1 -1: CATV Characteristics (Cont.)
Characteristic Description
View Picture (Typical) The visual carrier, NTSC or PALformat dependi ng on the selected channel, is
demodulated
View Modulation (Field) (Typical) One video field of the selected channel video is displayed
View Modulation (Line) (Typical) TheVITS line is displayed —if no VI TS line is specified in the channel table, line 17
is displayed
TV Line Selection Selectable using the FREQ/M KRS knob during View Line Modulation function
Line Format NTSC or PAL
Line Range 1 to 525 (NTSC), 1 to 625 (PAL)
Sweep Time 10 s/div
In-Channel Response
Range ±3 dB (the auto test is run in 1 dB/div)
Resolution 0.1 dB
Accuracy ±0.5 dB, Auto mode
±0.8 dB, Interactive mode
Adjacent Channel Leakage (Typical) Averaged power in adjacent channel(s) is divided by averaged power for the test
channel
Resolution 0.1 dB
Accuracy ±2.0 dBwithin limits shown in Figure 1--5on page 1--9
In-Service In-Channel Response (Typical) Standard vertical int erval test signal (line sweep, ghost-canceller, multiburst) is
measured within gate which excludes active video; result is expressed as dB P-P
Resolution 0.2 dB
Accuracy ±0.5 dB assuming test signal is flat at head end