ELECRAFT K3, Руководство пользователя

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44
Options
K3 option modules and crystal filters add
significant new capabilities to the transceiver. T hey
can be installed at any time (see pg. 45). All
modules are plug-in, requiring no soldering.
The presently available options are described
briefly below; please refer to our web site for
further details on these as well as our full range of
5- and 8-pole crystal filters.
KA T3: Wide-range internal 100-W automatic
antenna tuner with dual antenna switch. T he ANT2
connector is supplied with this option.
KPA3: Internal 100-W upgrade for the K3/10,
with two large fans and separate circuit breaker.
KDVR3: Digital voice recorder, usable both for
message record/playback and general audio
recording.
KRX3: High-performance, fully-independent sub
receiver with its own set of 5 crystal filter slots, 32-
bit DSP module, noise blanker, optional general-
coverage band-pass filter array (KBPF3
–
see
below), and auxiliary antenna input.
KBPF3: General-coverage band-pass filter array
that allows the K3 main or sub receiver to cover the
entire LF and HF range of 0.5 to 30 MHz. (If you
want general coverage in both main and sub
receivers, two KPBF3 modules are required.)
KXV3: RF I/O module, including receive antenna
in/out jacks (see pg. 38), transverter interface (pg.
38), and a buffered I.F. output (pg. 38). The RX
ANT IN/OUT jacks can be used to patch-in external
per-band filters or low-noise preamps.
KTC XO 3-1: High-stability T CXO; 1 PPM,
firmware correctable to better than 0.5 ppm (see
calibration instructions, pg. 49).
PR6: High-performance, low-noise 6-meter
preamp. T he PR6 can be connected directly to the
K3’ s RX ANT I N a nd OUT j ac ks ( r equi r es KXV3
option). It can then be enabled for receive on 6
meters by tapping
R X AN T
, and turned on using
the DIGOUT 1 signal (ACC jack, pg. 18, and
CONFIG:DIGOUT1 ). BYPASS jacks are provided
so the RX ANT IN/OUT functions will be available
for use on other bands.
Firmware Upgrades
New features and improvements are available to all
K3 owners via firmware upgrades. Upgrades may
also be required when you install option modules.
Please visit the Elecraft K3 software page
(www.elecraft.com/K3/k3_software.htm) to obtain
our free firmware download application,
K3 Utility .
This program runs on PCs, Macs, and Linux
platforms. In addition to firmware downloading,
K3
Utility provides configuration save/restore, crystal
filter configuration, and CW/DAT A terminal
functions.
Some applications or pe riphe ral de vices may
inte rfe re with K3 downloads; check the Help
information in K3 Utility if you have difficulty.
I f you don’ t ha ve I nt er ne t ac ces s , you can obt ai n a
firmware upgrade on CD. If you don't have a
computer, you can send your K3 to Elecraft to be
upgraded. See
Customer Se rvice , pg. 10.
Checking your Firmware Revision
Us e t he CONFI G menu’ s
FW REVS
menu entry to
determine your firmware revision. The serial
number of your transceiver, if needed, can be
obtained using the
SER NUM
menu entry.
K3 Firmware Self-Test
If the K3 detects an error in its firmware (an
incorrect
che cksum ), it will flash the TX LED and
show M CU LD on the LCD (with backlight off).
If this occurs, connect the K3 to your computer and
reload firmware. While firmware is loading, the
Delta-F LED (
∆
f ) will flash. When the download is
complete, the K3 should reset and run normally.
Forcing a Firmware Download
If you accidentally load an old or incompatible
firmware version and find the K3 unresponsive, do
the following: (1) unplug the K3 from the power
supply and wait 5 seconds; (2) plug the power
s uppl y back i n; ( 3) hol d t he K3’ s
P O W ER
switch
i n; af t er about 10 s econds , you’ l l s ee t he
TX LED
f l as h ( you’ l l al s o s ee
M CU LD
on the LCD); (4)
load the correct firmware version.