Elecraft K2 Owner's Manual - Manual (Page 109)

108
E
LECRAFT ®
RS232 Interface Setup (PORT)
Use the PORT menu entry to turn on 4800-baud RS232
communication. When PORT is ON, tapping
D I S P L AY
sends an
"FA" command (VFO A frequency) for test purposes. Refer to the
KIO2 or KPA100 manual for details.
SPLIT/RIT/XIT Configuration (SPLT)
Normally, the K2's
S P L I T
,
R I T
, and
X I T
selections stay the same as
you switch from one band to the next. To have these selections stored
on a per-band basis and retained when power is off, set SPLT to
P E R
(per-band).
10 and 12 m Power Limit in SSB/RTTY Modes (Po28)
The highest distortion-free single-sideband power output level may be
less than 15 watts, especially on 10 and 12 m. We recommend leaving
P o 2 8
at 10.0 watts. (Does not apply to CW mode.)
RTTY/Data Mode (RTTY)
RTTY/Data mode (mode letter lower-case r), if enabled, provides four
independent crystal filter settings for use with data modes. To enable
RTTY/Data mode, set the RTTY menu parameter to ON. The
M O D E
list will then include C, L, U and r. r-NORMAL mode uses lower
sideband, and r-REVERSE (with a "bar" over the r) uses upper
sideband. To select r-REVERSE, hold the
C W R V
switch. (FINE RIT
is also very useful in data modes; see page 106).
Filter configuration (CAL FIL ): r mode defaults to the same
settings as LSB and USB. Use CAL FIL (on 17 meters or below) to
modify the r-mode filter bandwidths or BFO settings as needed.
Speech compression (S S BCr ): The SSBC menu entry will change
to SSBCr when r mode is selected. A setting of 1-1 (1:1, or speech
compression off) is recommended for RTTY/data.
Real-Time Clock (RTC)
If RTC is set to ON and a KAF2 or KDSP2 option is installed, the
D I S P L AY
switch can access a time or date display. (The KDSP2 also
provides DSP features which are accessible via the
D I S P L AY
switch.)
Refer to the KAF2 or KDSP2 manual.
RIT/XIT Range Selection (RIT)
R I T
is used to select one of four RIT/XIT OFFSET ranges. If the
selected range is +/- 1.2 kHz or higher, the RIT/XIT annunciators
flash whenever
R I T
or
X I T
are turned on.
Accessory Outputs (ACC)
This menu entry can be used in conjunction with the Elecraft KRC2
programmable band decoder to control equipment external to the K2.
Refer to the KRC2 manual for details.
Extended VFO Range (D19)
Leave D19 set to the default, n (no), unless you have installed
varactor diodes D19 and D20 in conjunction with the K60XV option
(60 meters plus low-level transverter I/O). At that time the parameter
should be set to Y.
Note: Do not install D19 and D20 until the K60XV option is
installed.
K2/100 Mode Selection (PA)
If you have the KPA100 option installed, the PA menu entry shows
the 100-watt stage's operating mode. While editing the PA parameter,
tapping
D I S P L AY
selects the fan mode (nor, LoHi, Hi). For more
details, refer to the KPA100 manual (Appendix G of the K2 owner's
manual, which is supplied with the KPA100 kit).