Operation and Maintenance Manual

CANAM TECHNOLOGY, INC. (CTI)
MARK-IVD 800MHZ NARROWBAND SIGNAL BOOSTER M4DBDA8 O&M MANUAL
Page 39 of 46
Rev1 May/2015
 The Maximum Desired Output Level is the user setting or goal set point
for the RF Output power level per filter window, subject to the following:
Due to the Automatic Gain Control (AGC) function, the system
calculates the Gain starting at the minimum signal level able to be
received, which is defined by the Rx Threshold (Squelch) setting. Signals
coming in at that threshold level will be amplified a maximum of 120 dB.
Therefore:
o Actual Maximum Desired Output(Set-point) <= Min Rx Threshold +
120dB.
THUS: The User entered Set-point may be automatically reduced
to meet the maximum 120dB Gain. For example, this will happen if
the User reduces an Rx Threshold setting.
o The Desired Output (Set-point) values are limited by this constraint.
o This equation is driven by the lowest Rx Threshold value in the filters
bank, i.e. if at least one filter is set lower than the rest, that value
drives the output Set-Point for the entire bank.
F.2.3.2 Input Attenuation Control
AutoSet Input Attenuator
Response
Select the response speed for the Fixed Input
Attenuator shown in Main Status page.
Fixed Input Attenuation
The fixed input attenuation can be modified
if the “AutoSet Input Attenuator Response” is
OFF. In other modes (FAST, MED and SLOW)
this text field will be disabled and the fixed
input attenuation can change automatically.