Elecraft 2.04 K2 Firmware - Manual

1
E L E C R A F T K 2 R E V I S I O N 2 F I R M W A R E
Installation and Reference Manual
Rev. J, Sept. 10, 2008
Summary of Changes, Firmware Revision 2.04R
NOTE: REVISION 2.04 K2 FIRMWARE REQUIRES I/O CONTROLLER FIRMWARE REV. 1.09 or later.
• Sidetone source selection is now fixed (FP-U8, pin 4). Tap DISP LAY from within the ST L menu entry to
select U8- 4 as the source, if necessary. If after selecting U8-4 by you have no sidetone, you’ll need to refer to the
sidetone source modification instructions in the KPA100 or KIO2 manual.
Summary of Changes, Firmware Revision 2.04P
(see full details on page 4)
• Significant CW Keying Bandwidth Reduction: Requires K2KEYMODKT in addition to this firmware revision.
• Instant RXANT Switching, and Preamp/Attenuator State Saved: RXANT on/off with one keypress when
assigned to PF1 or PF2. Also, the preamp and attenuator states are stored independently for RXANT on and off.
• AF-On Scanning: In this mode, the receiver is not muted, and scanning continues until you tap a switch.
• Channel Scanning: Especially useful on 60 meters. "Channel hops" using memories set up for the present band.
• More Transverter Bands: There are now 6 fully-programmable transverter band displays.
• Multiple Bands per Transverter: "ADR" field allows several bands to select the same XV-series transverter.
• Low-Power Transverter I/O: 0.01-1.27 mW output with split RX/TX path (requires K60XV option).
• 100's of MHz Digit Always Displayed on Transverter Bands: Even with 10 Hz VFO steps selected.
• 60-meter Band: Full 60-m coverage, with channel scanning and manual hopping (requires K60XV option).
• SCAN Mode Fix: The VFO now correctly jumps 0.5 kHz on scan resume.
• Simplified KDSP2 Use: Shortcut key combinations added to turn NR and NOTCH on/off.
• RS232 Command Improvements: RC command usable in TX mode; new TQ (transmit query) command, UP
and DN now work in menu (one application for this: a utility that automates filter and BFO alignment).