User's Manual

UM-0848 34
o Frequency control: this section contains fields to modify channel frequencies.
Frequency resolution is 6.25KHz. User can change any channel frequency,
taking into account that uplink and downlink frequencies are always separated
45MHz. Display check-boxes column are used to display each channel control
frame, by default, only active channels will be displayed.
o Main uplink control: RF main parameters regarding to uplink band are contained
in this section: gain, output power limit, squelch threshold, squelch enable, PA
enable control, RF output power indicator, and RF input overflow, PA status
and stability alarms. Next table describes information of this frame:
Parameter
Range
Description
Gain control
60dB to 85dB
Set maximum gain of Signal Booster at UL band
Power limit control
+14dBm to +24dBm
Set maximum output power of Signal Booster at
UL band. System automatically will apply a
correction to share this limit between the active
channels. For instance, +18dBm band limit
means +12dBm maximum output power per
channels for 4 active channels
Squelch enable
control
Enabled / disabled
Enabling this control, Signal Booster does not
transmit in each channel if RF input power do
not exceed the threshold level configured
according to next row
Squelch threshold
control
-110dBm to -70dBm
If squelch is enabled, input levels below this
threshold are not transmitted.
PA enable control
On / off
This control enables / disables PA UL:
Green button and label “ON” means that PA is
enabled, red button and label “OFF” means that
PA is disabled
Rf output power
indicator
---
Shows instantaneous RF output power at UL
band
Input overflow
alarm
---
This alarm indicates that Signal Booster is being
overloaded at UL band, due to very high RF
input level
PA status alarm
---
PA status alarm indication based on current
consumption