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3.4 Gain Control Mode (AGC/MGC)
Automatic gain control (AGC):
AGC/MGC switch is located on the rear plate.
AGC factory setting is 2V for AGC control and 3V for AGC MAX control. Therefore, the maximum gain is about 18dB as shown in Figure 6 below. AGC setting cannot be changed through the rear gain potentiometer.
Manual gain control (MGC):
The manual gain control can be adjusted from 5dB to 18dB through the gain potentiometer on rear plate.
Note: 32dB gain can be obtained through custom orders.
Figure 6. AGC and AGC MAX Control Characteristics
3.5 Gamma 1.0 and 0.45 Mode
1.0/0.45 mode switch is located on rear plate. Gamma is the numerical value of the degree of contrast in a television picture. Gamma correction is the system response modification by providing linear transfer characteristic from the input to output. In general, circuit built into a TV camera to compensate for
1.0.For direct connection to a TV monitor, gamma 0.45 is recommended, since TV monitor has a
Figure 7. Gamma 1.0 and 0.45 Characteristics
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