HamGadgets PicoKeyer-Plus Manual

Ultra Low Power Morse Memory Keyer
The PicoKeyer is a single chip, automatic iambic Morse code memory keyer. Its small size, low
power requirements and robust set of features make it perfect for portable or QRP operation or for
integrating into transmitters or transceivers.

Dual MOSFET keying circuit will key
transmitters up to 60 V, positive or
negative

Simple one-button "menu" interface

Four 60-character message memories can
be chained together for longer messages

Works with any dual lever iambic paddle,
single lever keyer paddle or straight key

Dot and dash memories, automatic timing
and element spacing

Setup and message entry using your
paddle

Auto straight key detect, all message
memories available with straight key

"Bug" mode allows automatic dots with
manually formed dashes

Speed adjustable from 5 to 60 WPM via
menu OR speed control potentiometer

Speed control can be set to your preferred
speed range

Dual-Set Speed allows quick QRS/QRQ
and return to favorite speed

Adjustable weight

Variable pitch audio sidetone

Curtis "A" or "B", "bug" and Ultimatic
keying modes
PicoKeyer-Plus
PicoKeyer-Plus
Features of the PicoKeyer-Plus:
05/25/2014 (Firmware V4.5)

Variable letter spacing

Tune mode with on/off carrier or automatic
string if dits for easy tuneup

Beacon mode with adjustable 0 – 99 second
repeat delay and optional power-on auto start

MCW mode for sending audio Morse over
voice radios

Memory "pause" command with automatic
resume allows manual insertion of RST etc.
into message

Auto-incrementing QSO / serial number can
be embedded in memory messages, with or
without leading zeros

Paddle switching - select left or right handed
operation

Variable transmitter QSK delay
compensation

Memory and parameter settings retained with
power off

Low voltage - from as low as 2.5 to 5.5V

Low current - typically under 1 mA when
keying, with automatic extreme low power
sleep mode.

All controls and connectors on board
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