Installation
2-6
602-95555-01 Rev A
NXE1-20 Digital Radio
2.7 Power-Up Setting
As shipped, the NXE1-20 will radiate into the antenna upon power-up, THIS ASSUMES THAT
THE ANTENNA LOAD IS GOOD (LOW VSWR). If the VSWR of the load causes a high reverse
power indication at the PA, the red VSWR LED will light and the transmitter will cease radiating.
This is called the “AUTO” setting in the QAM RADIO CONTROL screen (see below).
The LCD screen (“QAM RADIO TX CONTROL”) selects the power-up state and controls the
radiate function of the TX unit.
Go to the MAIN MENU:
METER
QAM RADIO
NXE1 Main Menu
SYSTEM
ALARMS/FAULTS
Scroll
Scroll to QAM Radio, press ENTER.
Select Launch Screen for CONTROL TX, press ENTER:
CONTROL
QAM Radio Launch
TXA
TX Radiate
QAM Radio TX Control
AUTO
Verify the AUTO setting.
AUTO:
Transmitter will protect its PA by “folding back” the ALC under bad
load VSWR condition
(default setting)
ON:
Transmitter will remain in radiate at full power under all antenna
port conditions
(not recommended).
OFF:
Transmitter in standby mode.
