Logikey K-3 KEYER
2
OPERATING MANUAL
The Logikey K-3 keyer is a compact, full-featured memory keyer combining a CMOS microprocessor and a
non-volatile RAM chip for a full featured, low cost, high reliability design. Unlike other advanced keyers, it
needs no myriad of switches and knobs nor complex keypad sequences. Instead, commands are simply sent
to the keyer in Morse code using your paddles! Some of its features:
1. Iambic keyer with dot and dash memories.
2. Six active messages plus 12 "banked" messages, 1530 characters total.
3. Messages may 'call' others and contain programmed functions.
4. Input queue to store multiple message activations.
5. Contest serial number - 001 to 9999.
6. Digital and linear analog speed control - 5 to 60 WPM.
7. Adjustable weight on code elements - 25% to 75%.
8. Built-in adjustable frequency sidetone monitor.
9. Tune function for transmitter adjustment.
10. Selectable automatic character spacing.
11. Timed pauses within messages.
12. Message loop capability for continuous replay.
13. Messages can allow break-in for paddle-inserted text.
14. Emulation available for other keyers, including Curtis "A" timing.
15. Ultra Speed mode allows messages at speeds to 990 WPM!
16. Full beacon capability.
17. Message editing capability.
18. Messages and keyer configuration saved when power is lost.
19. Keyer can compensate transmitter character shortening.
START-UP
After power is applied, the keyer responds with "OK" and is ready for operation. It is initialized as follows:
Speed range: 5-40 WPM Load mode: character
Weight: 50 % Input queue: on
Monitor: On Serial number: 001
Auto-space: Off Emulation: Logikey K1, K3
Function speed: Equals Paddle speed Monitor Tone: 700 Hertz
Note: At start-up the first time, the speed control knob should be turned fully clockwise and a few dots sent,
then turned fully counterclockwise and a few more dots sent. This allows the keyer to calibrate the speed
range.
RESET
The reset command erases all settings and messages from the EEPROM memory. If the keyer is not acting
properly, even on initial start up, execute the RESET command. The command is implemented by pressing
buttons 1, 3, 4 and 6 all down simultaneously and release. When the reset command is used, all stored mes-
sages and settings will be lost.
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