TECHNICAL NOTE – OPERATION OF MT4400 TWTA
08/10/2004
TN4400-3
MCL, INC.
11 of 36
3.4.12 Computer
Mode
When this mode is activated, the HPA will allow the device on the computer interface to
control the HPA operating configuration. This mode is set through the Diagnostic Port.
3.4.13 Remote
Mode
When this mode is activated, the HPA will allow the device (remote panel) on the remote
interface to control the HPA operating configuration. This mode is set through the Diagnostic
Port.
3.4.14 Auto Switching Command/Flag
When this command is sent, both HPAs in the 1:1 switchover will be put into the Auto
Switching Mode. When the Auto Switching Flag is set to true, the HPA is in the Auto
Switching Mode.
3.4.15 Manual Switching Mode/Command
When this command is sent, both HPAs in the 1:1 switchover will be put into the manual
switching mode. When the Auto Switching Flag is set to false, the amplifier is in manual
switching mode.
3.4.16 Antenna
Command/Flag
When this command is sent, this HPA will be put into the antenna port of the RF switch. When
the Flag is set to true, the amplifier is switched to the antenna port of the RF switch.
3.4.17 Load
Command/Flag
When this command is sent, this HPA will be put into the dummy load port of the RF switch.
When the flag is set to true, the amplifier is switched to the dummy load port of the RF switch.
3.4.18 RF Low Switching Flag
This Flag will be true when RF Low alarm switching for the Auto Switching mode has been
enabled through the Interface Port.
3.4.19 Hold Power Command/Flag
When this command is sent, the HPA RF output power will be automatically regulated by the
Auto Power function. When the Flag is true, this indicates the RF output power is being
automatically regulated by the Auto Power function.
3.4.20 Auto Power Command
This command is used to regulate the HPA output power within a certain specified window.
This command can also be used to change the HPA output power level.
