FLEX-6000 Signature Series – Maestro User Guide
Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page 126
28 USING THE FLEXRADIO POWER GENIUS XL AMPLIFIER
The FlexRadio Power Genius XLâ„¢ linear amplifier is fully integrated with SmartSDR for Maestro.
When the amplifier is installed in the same Local Area Network (LAN) as the FLEX-6000 transceiver,
all of the amplifier’s operational controls can be manipulated using Maestro. This allows the
amplifier to be located somewhere other than at the operating position if desired.
Using the LAN connection to the amplifier, SmartSDR for Maestro sends information about the
band and mode of the Slice Receiver that controls the transmitter. The Power Genius XL uses this
information to configure the low-pass filters and operational modes of the amplifier. Full details
can be found in the Power Genius XL User Guide, available from the FlexRadio website.
The only configuration change needed to operate the Power Genius XL amplifier from SmartSDR for
Maestro is to configure the correct transmit time delay. The amplifier needs at least 20
milliseconds of settling time between receiving the keying signal and the arrival of the RF signal to
be amplified. This can be achieved by setting the TX Delay value to 20 or more. See sections 33.7,
Transmit Tab, and 16.2, Transmit Profiles for more details. The TX Delay setting applies to both
LAN and direct PTT signaling.
When a Power Genius XL is connected to the radio, Maestro makes three additional auxiliary
meters available.
Forward Power: The output power of the amplifier, in
watts, measured at the active output terminal.
SWR: The standing wave ratio, calculated by the
amplifier from the forward and reverse power values.
Note that the smallest value reported by this meter is
1.2:1.
Temp: The output power transistor heatsink
temperature, in degrees Celsius.
The last component of the Power Genius XL integration with the Maestro controls is the amplifier
state control button. This button is found in the top center portion of the main display and has four
values:
When the button is missing, the amplifier is not connected to the radio. The
amplifier auxiliary meters are not available.
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