Elecraft K2 Owner's Manual - Manual (Page 118)

E
LECRAFT ® 117
10. Options
The K2 can be customized using a variety of internal and external options,
which are briefly described here. Note: If you press a switch associated with
a missing option module, you'll see
NOT INST (not installed) on the
LCD. Menu parameters for missing options will be displayed as " - - ".
KSB2 SSB Adapter: The KSB2 allows the K2 to transmit and receive LSB
and USB, which enables use of voice as well as PSK31, RTTY (AFSK),
SSTV, and other data modes. VOX and PTT are supported, and power output
can be set from about 0.5 to 15 watts (PEP). The adapter's crystal filter is
optimized for SSB transmit and receive, but can also be used for CW or AM
receive. Mic gain and speech compression level can be set using the menu.
Our MH2 Heil/Elecraft hand mic is ideally suited to use with the KSB2.
KNB2 Noise Blanker: The KNB2 is effective on a wide range of noise
sources, and includes two gain settings as well as two different blanking pulse
widths. The noise blanker is controlled using two dedicated front-panel
functions,
N B and L E V E L .
KAT2 Automatic Antenna Tuner (ATU): Our internal QRP ATU handles a
wide range of impedances, tunes nearly any antenna–on any band–in seconds,
and stores all data for instant band recall. Best of all, it includes an integral
dual antenna switch (controlled by
AN T 1 / 2 ), providing the functionality of
two antenna tuners in one. The KAT2 uses latching relays, so current drain is
nearly zero except when an antenna is being tuned.
KAT100 High-Power Automatic Antenna Tuner (ATU): The KAT100 is a
rugged, external ATU that's the ideal companion for the K2/100. It can handle
up to 150 watts, and like the KAT2, provides two antenna jacks accessible
with the
AN T 1 / 2 switch. The KAT100 offers the same matching range,
menu control features, and display capabilities of the KAT2, and in addition
offers 10 LEDs for real-time monitoring of SWR. Note: The KAT100 can be
used with the basic K2 as well as the K2/100. The basic K2 must have the
KIO2 option installed to control the tuner.
K60XV 60-m Adapter and Transverter Interface: The K60XV adds 60
meter coverage and a low-level, split RX/TX transverter interface (~0 dBm).
K160RX 160 m Adapter and RX ANT Switch: The K160RX option adds
160 meters a separate receive antenna switch. The receive antenna can have a
separate preamp/attenuator setting from the normal antenna (per-band).
KBT2 Internal 12-V Battery: The rechargeable battery fits snugly into the
top cover along with the KAT2 ATU and/or KIO2. Recharging requires an
external 14-V regulated power supply, which can also power the transceiver.
KIO2 RS232 Interface: This option allows full computer control of the K2,
and uses true RS232 signal levels. It works with most transceiver control and
logging software, as well as our own k2remote and k2voice programs.
KDSP2 or KAF2 Audio Filter and Real-Time Clock: The KDSP2 provides
advanced DSP filtering, auto-notch, and noise reduction. The KAF2 provides
analog low-pass and narrow CW band-pass functions. Both include time/date
display and an on-board, long-life backup battery.
KPA100 Internal 100-Watt Stage with RS232 I/O: The KPA100 completes
the K2 as a 100 W PEP/CW transceiver. The kit comes with its own top
cover/heat sink that replaces the K2's original top cover. The original top
cover can be re-installed in about one minute for lightweight field operation.
KRC2 Programmable Band Decoder: The KRC2 can be used to control
antennas, amplifiers, transverters, filters, or other station equipment directly
from the K2. Custom configuration is possible using a PC.
XV-Series Transverters: Elecraft's transverters are an ideal match for the
K2, providing high-performance receive and 20-25 watts output on
VHF/UHF bands. The K2 can directly control up to six transverters.