FLEX-6000 Signature Series – Maestro User Guide
Page 136
Copyright 2019 FlexRadio Systems. All Rights Reserved.
In the General section, the Tune Power control sets a limit on the transmitter power level when the
TUNE button is pressed on the front panel. Tapping this field opens a keyboard so the value can be
changed.
The hardware ALC can be enabled and disabled by tapping on the Hardware ALC button.
Δ – Please note this input is provided as a safety measure for external amplifiers. It is NOT meant
to be used in regular operation as an active power control input or to modify the “attack” of an
external amplifier. Almost all modern HF amplifier manufacturers discourage the use of ALC in
normal operation. In fact, many amplifiers do not have ALC implemented.
The Show Tx in Waterfall button enables and disables the display of the transmitted signal in the
Panadapter Waterfall. When disabled, a single white line is added to the Waterfall when
transmitting. When enabled, the transmission data is added to the Waterfall.
The Max Power control allows the user to manually set the radio’s maximum output power on ANT1
and ANT2, when using the PA. This control sets the maximum value of the RF Power front panel
knob. Transmit power set by third party programs will be limited to this value.
The Timings section has adjustments for RCA TX1, TX2 and TX3 (TX1 only on a FLEX-6300) as well as
the Accessory TX, TX Delay and TX Timeout. Each of these controls is measured in Milliseconds (MS).
The TX1, 2, and 3 timings are independent and start measuring from the moment the transmitter is
engaged. When TX Delay is zero, RF will be produced as soon as the largest of TX1, 2, 3 and ACC_TX
has elapsed. Otherwise TX Delay is added to the maximum of TX1, 2, 3 and ACC_TX.
When TX Inhibit is enabled, the transmitter is prevented from operating, regardless of other settings
and inputs.
The MIC2 PTT button allows the user to disable the PTT input on the MIC2 back panel jack. This is
useful when a microphone without a PTT switch is used.
The Interlocks section offers three settings for RCA and Accessory timings: Disabled, Active High and
Active Low. The FLEX-6300 does not have interlock settings for RCA.
When the Transmit Equalizer is enabled, the transmitted audio can be optimized for different
microphones and operating styles such as DX, contesting and SSB. The sliders provide a +/- 10 dB
adjustment range over eight octaves. The settings shown above provide very good audio quality for
many dynamic microphones.
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