[Lowfer] KID Chips

[David Willmore]

Johan,

> > What kinds of signals do you want it to generate and in what modulations?
> > CW, QRS, Dif-CW, audio modulation, simple keying outputs, etc.
> 
> Jason is a fun mode. I have written a Jason beacon program that runs on a
> PIC16F628. It controls an AD9850 DDS but can of course be modified for
> other chips such as the AD9832 and perhaps also ZL?BPU's AVR software
> DDS. Beacon message and frequency is stored in EEPROM and can be
> programmed from a simple ASCII terminal through the PIC's UART.
> 
> Lacking a DDS, it may even be possible to pull a crystal oscillator over 17
> precise 252 milli-Hz steps with a varicap and a bunch of trim potentiometers :-)
> 
> You may wish to include Jason in your "All mode beacon controller"?
> Anyway, I'll send you the code in a separate message.

I'm doing something similar with a project for the NJQRP club.  It's
a micro that outputs at RF directly via a DAC.  No separate DDS chip
needed.  They are really handy chips, but they're a bit limited for
some modes--anything with a modulated envelope.

If someone wants something more than a keyer, they should look at the ZL1BPU
box or the VLF beacon that I'm working on.

Cheers,
David N0YMV