CableWorld CW-3130 User Manual - Tv Sound Modulator
4
TV SOUND MODULATOR
CW-3130
Technical data
Input data
IF INPUT
Input impedance
75 ohms
Nominal frequency
38.9 MHz
Input connector
F-type socket
Nominal input level
102 dB
µV
Video input
bridged (high impedance input)
Nominal input level
1 V
p-p
Connector type
BNC socket
Output data
IF OUTPUT
Output impedance
75 ohms
Nominal frequency
(38.9) / 33.4 / 33.158 MHz
(B/G-version German two carrier system)
Connector
F-type
socket
Nominal output level
(102) / 89 / 82 dB
µV
Video output
bridged (high impedance output)
Nominal terminating impedance
75 ohms (external terminator to be used)
Connector type
BNC socket
Operating modes
STEREO CH1=
(L+R)/2
CH2= R + pilot
Pilot modulation
117.5 Hz / 50% AM
DUAL SOUND
CH1= program A
CH2= program B
Pilot modulation
274.1 Hz / 50% AM
MONO
CH1= program A
CH2= program B
Pilot
modulation
unmodulated
Pilot signal
Frequency (54.6875 kHz)
3.5 fH, locked to the input video
Transmission
on the second sound carrier (CH2)
Modulation
FM / 2.5 kHz deviation
Nominal deviations of the sound carriers
Factory setting
30 kHz / 0 dBm
At operation
30 kHz or 50 kHz
(according to user setting)