System information
S7000 Series TV Analyzer Operation Manual
96
4.3.1 Parameters
CENT, centre frequency range is from 955MHz to 2145MHz. If the input frequency is above the range, S7000
will identify if the input frequency is valid C band or Ku band, if valid, S7000 will calculate the SAT-IF
automatically.
For example:
Input 1938MHz, 1938MHz is in centre frequency range, this value is valid.
Input 12538MHz, this is a valid transponder frequency in Ku band. If the LNB local osc has been set as
10600MHz, S7000 can calculate the centre frequency is 1938MHz.
Input 6000MHz, this is invalid frequency, so S7000 will give it up and reset the centre frequency to the
maximum frequency.
SPAN, spectrum span, (10MHz-1200MHz).
Scale, level scale, (1dB/, 2dB/, 5dB/, 10dB/).
REF, reference level, range is from 20dBμV to 120dBμV. Press keys (UP/DOWN) to adjust, or input
digital number key directly.
THLD, noise threshold range is from -20dBμV to 120dBμV, S7000 only display the spectrum above the noise
threshold as shown in Figures 4-6 and 4-7.
MARK, Marker, as shown in Figure 4-8.
Figure 4-7