Harris VCA6800+ - Vda6800

20 VCA/VDA/VEA6800+ Installation and Operation Manual
Preliminary—Contents are proprietary and confidential. Do not photocopy or distribute.
Chapter 2: Installation and Configuration
Figure 2-5. VCA6800+ Gain and EQ Mode Potentiometer
Adjustment
A single-turn pot allows fine adjustment of the CMR. A separate
single-turn pot controls the response, while a variable capacitor controls
EQ response. The adjustments have been set in the manufacturing
facility; readjusting is not recommended without precision test
equipment.
VDA6800+
The VDA6800+ module has one jumper, which is used to select the
looping or internal input termination. The VDA6800+ module also has
an adjustable pot for gain mode.
Figure 2-6. Location of the VDA6800+ Jumper Block and Adjustable Pot
VCA6800+
D
ec
r
ease
In
c
r
ease
Gain pot
Input termination
jumper