Kaval BDA-1000 User Manual page 12

Bi-directional amplifiers 800 & 900 mhz
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Gain Menu
The gain menu allows adjustment of overall System Gain in dB for each direction. These functions take into account
programmed module gain values entered by the user, or entered during factory calibration. The values it considers
include Booster maximum gain and PA gain. These gains must be entered in the appropriate menus and must
account for system cable and duplexer losses. Invalid gains cannot be called up. Gain is set in 1 dB increments.
Gain menu entries (typical) are:
Uplink Gain:
Downlink Gain:75dB
Uplink & Downlink Booster Menus
These Menus allow programming of Booster parameters. Current program range is up to 1 Amp. If max current is
reduced below the minimum current setting, the minimum current setting is pushed down automatically, and kept
50mA less than the max current setting. If the minimum current setting is raised above the maximum current setting,
the maximum current setting is pushed up and kept 50 mA higher. Current settings use 50 mA increments. Maximum
gain setting is 80 dB. This applies to Booster gain, not System Gain. Booster Gain entries should account for losses
before the booster. Menu selections are as follows (with typical data):
Enable:
Max Current: 1.00A
Min Current: 0.25A
Max Gain:
Interlock
The Interlock entry, if selected, calls up a Sub-Menu that allows the user to select what modules are disabled if
the Booster has a fault. In this menu, the top row shows:
Up Boost Interlock
The bottom row shows one of the other module names followed by Yes or No, which are toggled using the scroll
keys.. The Interlock entries for the other amplifier modules operate in a similar manner. If all interlocks are off,
then no deliberate shutdown occurs, and the fault detection is used for indication only.
Uplink Boost:
Uplink PA:
Downlink Boost:Yes
Downlink PA:
l Page 12
80dB
Yes
70 dB
Yes
Yes
Yes
Kaval Telecom Inc.
DCM000000001

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