Elecraft K3 Owner's Manual Errata - Manual

ELECRAFT K3 OWNER’S MANUAL ERRATA
R ev. D 10-5, June 9, 2014
REAR-PANEL HEADPHONE JACK MAY REQUIRE CONFIGURATION:
If you can’t hear any audio from the speaker with both front and rear headphones unplugged, then the
firmware isn’t set up correctly for your rear-panel headphone jack. (We’re now using a newer type that
has inverted speaker-cutoff switch logic.) You’ll need to change the setting. First, locate the
CONFIG:SPKR+PH menu entry. Next, tap the ‘1’ switch on the numeric keypad until you see
“PH.R SW-”. The minus sign at the end indicates inverted sense logic for the jack. Tapping it again would
restore the original setting (“PH.R SW+”).
CAUTION REGARDING THE EXTERNAL SPEAKER JACK:
This jack is stereo, not mono, because of the K3’s stereo speaker outputs. If you use a mono speaker plug,
turn off the right channel amplifier by setting the SPKRS configuration menu entry to 1. This will
eliminate the possibility of damaging the right-channel amplifier. (You will still hear stereo when using
headphones in this case, unless you also set the SPKR+PHones menu entry to YES.)
NEW FEATURE FOR USE WITH THE ELECRAFT KAT500:
The K3 can now send its VFO frequency to the KAT500 Automatic Antenna Tuner as the VFO is moved.
This allows the KAT500 to automatically update its L-C network so that it is always ready for transmit on
the current frequency. To enable this feature, locate the K3’s CONFIG:KAT3 menu entry, then tap ‘1’ to
change the KAT500 setting to “KAT500Y” instead of “KAT500N” (the default).
IMPORTANT NOTE REGARDING THE K3EXREF MODULE:
• K3EXREF USERS MUST NOW ENABLE THE MODULE IN THE MENU: To do this, locate
the CONFIG:REF CAL menu entry and tap 2 to change the setting; flashes XREF IN or
XREFOUT.
• If you DO NOT have a K3EXREF module installed, use the XREFOUT setting (the default). If
you use the XREF IN setting without a K3EXREF module installed, you may hear digital
switching noise on the 6-meter band.
MANUAL CORRECTIONS:
Pg. 5, 8, and 17: For K3 serial # 6588 or later, the accessory DC output is rated for a maximum current of 1.0 A
(0.5 A prior to this). Earlier K3s can be updated using Elecraft p/n “K312MDKT” (K3 12-V modification kit).
See http://www.elecraft.com/K3/k3_software.htm for additional firmware release notes and update
instructions.