K1EL Systems LLC
We have redesigned the CPO and added some new functions. It's still a versatile code practice oscillator that can be used with K1EL keyers or just about any keyer on the market. Near sine wave output with adjustable frequency and volume.  A connector is provided to drive an external speaker or headphones with plenty of clean output. An on-board speaker provides a low level audio output for quiet practice. In addition a line level output is provided to drive an external amplifier or to use for internet or remote CW applications. For RTTY testing, the CPO can output RTTY mark/space tones which can be keyed using the either the key input connector or the front panel pushbutton switches. Since USB chargers are so readily available, the CPO is powered from a USB power supply through a mini USB connector.  This is an easy to assemble kit including all components and a custom enclosure.

CPO Features
Code Practice Oscillator Kit - Version 2 Kit
NEW !!
CPO v2 Practice Oscillator Kit
$74 USD

Temporarily out of stock








CPO Documentation

CPO Version 2 - A.3 Manual Rev 6 PCB (currently shipping)

CPO Version 2 - A.2 Manual Rev 5 PCB

CPO Version 1 Manual (Retired)

Home



Keyer Kits



ICs



Radios



PIC Tools



Software



Videos



Deals



Information

Contact Us
Documentation
Frequently Asked Questions
Privacy Policy
About Us


Customer Service

Terms and Conditions
Return & Repair Policy
Ordering Info
Shipping Methods
Connections

Copyright 2000-2020 - K1EL Systems LLC
Twitter: @k1elsystems
News: K1EL Systems Blog
Help: K1EL on Groups.io


Click to see inside