FLEX-6000 Signature Series – Maestro User Guide
Page 71
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TX Menu, CW Mode
To use a straight key, disable the Iambic control and enable Dot/Dash Swap in the Phone/CW control
panel in the Maestro Main Menu. Connect the straight key to the tip and sleeve of a 1/8
th
inch TRS
plug and connect it to the Key input on the back panel of the Maestro. When Breakin is enabled, the
transmitter is engaged when the key contact is closed. When Breakin is disabled, the transmitter
must be engaged with one of the PTT inputs before using the key. The Delay slider in the TX Menu
sets the PTT hold time for break-in in milliseconds. It can be set anywhere from zero (full QSK), to
2000 milliseconds (2 seconds). See section 33.6.2, CW Mode Transmitter Control Panel for details
about these controls.
Note: When the transceiver is in QSK mode, reception occurs through the pre-selector which is
connected directly to the receiver’s analog to digital convertor (ADC). This provides the lowest loss
path to the ADC. Transmission with the ATU enabled sends the RF from the power amplifier
through the ATU before reaching the antenna connector. To avoid the ATU loading the receiver
during QSK operation, QSK is not available for single antenna ATU operation. If the ATU is required
during QSK operation, a separate receive antenna port (such as RX-A, RX-B, XVTR-A or XVTR-B)
must be employed.
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