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(Note to those who have used a K3: The K4's bar graphs have twice as
many bars as the K3's for a given activation level. The K3 manual
suggested "4 bars" as the right level for data modes, which would
translate to 8 bars on the K4. But it's easier to simply stay just below
the "5" mark on the K4's ALC meter.)
In all cases (SSB modes as well as DATA), you can optionally use the
transmit monitor to listen to your data signals. The procedure given
for voice modes can be used. Monitor levels for voice and DATA
modes are independent.
To set LINE OUT transmit monitor level, see MENU:TX Monitor, Line
Out.
RECEIVER SETTINGS
Receiver Configuration
Prior to using the receiver, you should familiarize yourself with the
receive configuration functions (MAIN RX and SUB RX). These are used
to configure RX EQ, LINE OUT, audio effects, text decode, and various
per-mode settings.
Receiver Controls
The following controls are used during normal operation to optimize
receiver performance under different conditions.
You may wish to review how the FILTER and RF/SQL multifunction
knobs are used; see MULTI-FUNCTION CONTROLS.
Front-End Gain Controls
The preamp and attenuator controls establish the gain or loss ahead
of the receiver circuitry, namely the A-to-D converter(s). Higher gain
will generally improve receiver sensitivity, within the limits of your
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