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- #1020 CPS OSCULATOR KEYER SERIAL#
- #1020 CPS OSCULATOR KEYER UPDATE#
- #1020 CPS OSCULATOR KEYER SOFTWARE#
- #1020 CPS OSCULATOR KEYER CODE#
- #1020 CPS OSCULATOR KEYER DOWNLOAD#
The speed in words per minute equals the number of dots per minute divided by 25. When released, the keyer will read back in CW the number of dits that were sent. The keyer will send dits while the dit paddle is depressed. This mode is used to verify or set the proper timing for CW sending. Anyone who is familiar with iambic B, please test this and tell me what you think.)
#1020 CPS OSCULATOR KEYER CODE#
(I’m not certain the iambic B code works well. If this code is not included, the keyer defaults to Iambic A behavior. These commands are available if the code is compiled with #define include_iambic_b_code uncommented. You can also exit command mode by hitting the mode button while in command mode.Ī and B commands switch between Iambic A and B modes. When exiting command mode, the unit will emit a beep-boop (or a BK in CW if #define include_funky_tones_code is commented out). If you send an unknown command, the PIC will send a question mark (?) in CW. Toggle between three digit and eight digit frequency counter modes Here are the commands: Commandįrequency counter reading = offset – measurementįrequency counter reading = measurement – offsetįrequency counter reading = measurement + offset In this mode, you place commands by sending a letter in CW. When the mode button is pressed, the unit goes into command mode.
![1020 cps osculator keyer 1020 cps osculator keyer](http://ve3efc.ca/index_htm_files/658.jpg)
When the unit is initially turned on, it will default to a speed of 20 WPM. (To disable this, comment out #define include_needless_feature_code in the code inclusion section) This does not key the TX_KEY or TX_WAKE line. The 1N4148 diodes can be substituted with 1N914 diodes or most any general purpose diode. The SIDETONE line with the coupling capacitor also can drive an 8 ohm speaker. I have also successfully used a capacitor and the winding of a junkbox audio transformer as a low pass filter with good results. The square wave can be “softened” with a resistor and capacitor acting like a low pass filter if desired. For those who aren’t concerned with a pure sine wave sidetone and want to save parts, the SIDETONE line supplies a square wave signal suitable for coupling into a receiver audio stage. Note that the ST_KEY line does not supply a square or sine wave sidetone but rather a voltage to key an external oscillator. Connect to a VFO to use the frequency counter functionality.
#1020 CPS OSCULATOR KEYER SERIAL#
This can be connected to a serial port on a computer to do quick programming.įrequency counter input. This line could also be used to key a T/R relay on non-QSK rigs. If the key is used in beacon mode as a VHF “fox” for a foxhunt, this line can key transmit on an FM rig and the sidetone line can feed the transmit audio with appropriate attenuation. QSK rigs don’t need this – this is intended more for beacon mode and could be used to turn off the rig to conserve power during idle times. This output is grounded when the transmitter should be turned on. Couple into an audio stage of the receiver. This goes high (+12 volts) to supply voltage to an external sidetone oscillator. This goes low (ground) on transmit and should be connected to the key input of the transmitter. Sorry, I do not have PCB artwork.) Connections Schematic NameĬonnect to paddle ground to activate dit (dot) keyingĬonnect to paddle ground to activate dah (dash) keying These schematics were created with Eagle. ( Ignore the outdated email address and web page URL on these schematics.
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#1020 CPS OSCULATOR KEYER SOFTWARE#
In circuit programming with a computer serial port and free software enables quick code updates or easy experimentation.Modular code design and compile-time selectable features.Frequency-adjustable sidetone or on-off keying for an external sidetone oscillator.Three memories: one for a callsign, and two longer memories, all non-volatile.I have a new CW keyer I have developed for the Arduino platform which is largely based on this original effort with the PIC.
#1020 CPS OSCULATOR KEYER UPDATE#
I no longer update this code as it’s been very stable and has all the features I needed at the time I developed it.
#1020 CPS OSCULATOR KEYER DOWNLOAD#
Download here.) It also includes a frequency counter suitable for use with homebrew rigs.
![1020 cps osculator keyer 1020 cps osculator keyer](http://kekol.com.ar/wp-content/uploads/2021/06/K-1020-FJ.jpg)
(VE3VXO has also ported this code to the PIC18 series. The code compiles for the Microchip 16F84, 16F84A, 16F628, 16F628A, and 16F648A running at 4 Mhz. This is a PIC keyer I wrote several years ago that can be used as an outboard keyer, internal to an existing rig, or as a CW beacon.