Elecraft K2 Owner's Manual - Manual (Page 88)

E
LECRAFT ® 87
Controls and Display
LCD and Bargraph Meter
The LCD shows the operating frequency and other information
depending on selected display mode. The LED bargraph functions as
an S-meter on receive, and RF out or ALC meter on transmit.
Power-Up Messages: The LCD will display E L E CR A F T for two
seconds on power-up. If a problem is detected, the display will show
I NF O 10 0
or a similar message. The number shown corresponds
to a paragraph in the Troubleshooting section.
Mode Indicator: A letter at the right end of the display tells you the
operating mode: C (CW), L (LSB), or U (USB). A fourth mode,
RTTY/data, can also be enabled, and uses the letter r (page 108). If a
small bar appears above the C or r, it means that the CW sideband
is inverted (CW reverse or DATA reverse). The mode indicator will
also flash slowly in two cases: CW TEST mode (see page 100) and
SPEECH
(VOX) mode (see page 102).
Annunciators: The LCD provides eight Chevron-shaped
annunciators, or status indicators:
NB
noise blanker on (flashes if Low Threshold setting is
selected using
L E V E L
)
ANT2 ant. 2 selected (requires ATU)
PRE pre-amp on (approx. +14 dB)
ATTN attenuator in (-10 dB)
A VFO A selected (flashes in SPLIT mode)
B VFO B selected (flashes in SPLIT mode)
RIT RIT turned on (flashes if wide range selected)
XIT XIT turned on (flashes if wide range selected)
F Fast Play CW Message Mode enabled (flashes
alternately with C)
Decimal Points: The decimal point to the right of the 1 kHz digit
will flash slowly if the VFO is locked by holding
L O C K
. See
Advanced Operating Features for other cases where decimal points flash
(scanning, page 103; AGC OFF, page 104).
SPLIT/RIT/XIT LED (Optional)
You can install an LED on the front panel that will turn on whenever
SPLIT, RIT, or XIT is in effect. See the associated application note,
Adding a SPLIT/RIT/XIT LED to the K2.
Potentiometers
AF GAIN receiver audio level
RF GAIN receiver RF level 11
Turning this control CCW (counter-clockwise) decreases receiver RF
sensitivity. At the same time it increases the bargraph S-meter
indication to remind you that you’re not at full receive sensitivity. The
farther CCW the control is set, the stronger a signal must be before it
results in a meter deflection.
KEYER keyer speed control
When you turn this control, keyer speed in words per minute (WPM)
will be displayed, e.g. SPD 18. The speed can be set from about 9 to
50 WPM.
POWER power output control
When you turn this control, power output will be displayed in watts, e.g.
P 5.0
. The range is 0.1 to 15 W for the basic K2, and 1 to
100 W if you have the KPA100 amplifier installed. See Basic K2
Operation for details on controlling power output (page 97).
OFFSET RIT/XIT offset
This control provides a default range of +/- 0.6 kHz in 10 Hz steps when
R I T
and/or
X I T
are enabled. You can also select a wider RIT/XIT range
(see RIT menu entry, page 108).
11 As in many transceivers, this control actually varies the I.F. gain.