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6.3 Advanced Configuration
6.3.1 Required RF Output Delay (TX Delay)
The Tuner Genius XL firmware manages all tuner state transitions. However, the Operate to Transmit transition
requires that the exciter slightly delay emitting RF until the transition is complete. Therefore, the Tuner Genius
XL requires a minimum delay of 20 milliseconds (20ms) between the time the keying signal arrives at the tuner
and the arrival of the exciter RF signal. This time delay is necessary for the tuner to complete all preparations
to accept a signal safely. The following sections provide detailed information about setting the delay.
6.3.1.1 FLEX 6000-Series
When keying the tuner with FLEX 6000 Series transceivers using LAN keying, a [TX Delay] value should be set to
a minimum of 20 milliseconds to allow the tuner to select the correct tuning solution.
i – A best practice is to create a Tuner Genius XL TX Profile for your FLEX‐6000 Series transceiver and load that
when using the Tuner Genius XL.
6.3.1.2 TX Delay for Other Exciters
When keying the tuner with other than FLEX 6000 Series transceivers, you will need to use a radio configuration
or setting to delay RF generation by at least twenty milliseconds (20ms) after the keying signal (PTT) is sent to
the tuner by the exciter.
Please consult the manual for your transceiver or exciter to enable and configure the transmit delay.
6.3.1.3 Exciters Without a TX Delay Adjustment
If the exciter does not support a transmit delay, then configure the tuner and exciter in the following way:
Connect the keying device (mic PTT switch, foot pedal, etc.) to the appropriate Tuner Genius XL PTT
Input. The appropriate input is the same tuner port (A or B) where the exciter output is connected.
Copyright 2021 FlexRadio. All Rights Reserved.
Page 26 of 72
7 June 2021(FW:0.9.12, Utility: 0.9.12)
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