FLEX-6000 Signature Series – Maestro User Guide
Page 108
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25 USING THE FLEXRADIO POWER GENIUS XL AMPLIFIER
The FlexRadio Systems 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 Systems 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 arrival of the RF signal to be amplified. This
can be achieved by setting the TX Delay value to 20 or more. See sections 30.7, Transmit Tab and
14.2, 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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