specify the path to the sound driver (default: /dev/dsp on Linux,
/dev/audio on Solaris).
use standard output instead of audio output. Format is 8kHz 16bit words
1 channel in the endianness of the CPU.
do not use the mmap() way of approaching the soundcard, which means,
do not read directly from the soundcard dma buffer. Some soundcards do
not support mmap mode. This option is experimental, it is not yet tested
how good the results will be!
Set the verbosity level (1-2, default 0). The higher the number, the
more debugging information is written to standard error.
Transmitter uses LSB (lower sideband) mode.
Transmitter uses USB (upper sideband) mode.
Transmit the time in MESZ timezone; if not specified,
it transmits MEZ.
The program uses the system time at startup and then derives the clock from the soundcard. It could be made a command line parameter to specify transmit time.
In order to build a it would require a very accurate reference clock.
Hans-Guenter DF4OX/DL0PTB sent me printed documentation about the DCF77 transmission format which helped me a lot.
Thomas Sailer, HB9JNX/AE4WA, email@example.com
|HB9JNX||DCF77GEN (1)||DCF77 utilities|