- 5 -
- 5 -
Modulator channels channel strip B: S3 … S24 including C5 … C12
Frequency range:
119.25 MHz … 327.25 MHz
Channel raster:
PAL CCIR standard B/G
CCS
1233
Channels:
S3 … S24 including C5 … C12
Frequency range:
119.25 MHz … 327.25 MHz
Channel raster:
PAL CCIR standard B/G
CCS
1234
Channels:
S21 … S41
Frequency range:
303.25 MHz … 463.25 MHz
Channel raster:
PAL CCIR standard G
CCS
1235
Channels:
C21 … C69
Frequency range:
471.25 MHz … 855.25 MHz
Channel raster:
PAL CCIR Standard G
Connections:
SAT inputs:
1 IEC socket (female), 2nd input prepared
HF output (modulator):
1 IEC socket, female
Connection strip (10-pin):
Supply voltages, control circuits
Socket RS 232:
Serial interface (Sub-D, 9-pin)
2.3 Description
These twin-SAT cassettes enables the conversion of two TV satellite signals
of the same polarisation (horizontal or vertical) from the 1st SAT IF level
(950-2150 MHz) to the TV ranges band I to band V.
Each Cassette contains 2 channel strips with identical circuits. These are indicat-
ed in the display by Bx A or Bx B. The SAT signal transmitted via the SAT input
passes the SAT tuner, the video and stereo audio signal processing units and is
sent on to the combiner via a CCIR modulator. The combiner links the channel
strip A signal to the signal at channel strip B and transmits the signal via the HF
output socket of the HF bus bar. The signal can be set using the corresponding
level regulator (max. –20 dB). All other settings are made using the keypad of
the control unit of the head end.
After switching on the head end, the software version of the control unit is
displayed briefly in the two-line LC display. Approx. five minutes after the last
button has been pressed, the display switches off automatically or the software
version of the control unit is displayed.
