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Chapter 6: VEA-6830 Video Distribution Amplifier Module Operation
52 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Operation
A multi-turn Gain potentiometer provides adjustment over a range of
-3 to +3 dB. The gain is increased when this pot is adjusted clockwise.
Another multi-turn Equalizing potentiometer is used to adjust cable
equalization. It is adjusted clockwise to obtain more equalization.
A single-turn Response potentiometer allows fine adjustment of the
high-frequency response. However, it is factory-set/calibrated, and
readjustment
is not recommended without precise test equipment. These
three potentiometers are located at the front edge of the module.
There is no need to terminate unused outputs; however, a perfect
response can be obtained if unused outputs are terminated.
Jumper J1 sets internal 75
W termination. If removed, it makes the input
high-impedance.
Figure 6-2. Front Edge View
Figure 6-3. VEA-6830 Module Top View
Gain EQ
Response
A
B
C
D
E
F
H
J
K
L
M
N
P
R
S
P1
GAIN EQ