Tested with the following data:
rtl_433 -r ~/rtl_433_tests/tests/lacrosse/01/gfile001.data
rtl_433 -r ~/rtl_433_tests/tests/lacrosse/01/gfile002.data
rtl_433 -r ~/rtl_433_tests/tests/lacrosse/01/gfile006.data
A pulse based Manchester demodulator is added based on the current
sample based manchester_decode() dunction.
The Ambient Weather sensor is converted and successfully tested to work.
With: rtl_433 -r ~/rtl_433_tests/tests/ambient_weather/01/f007th.data
The proofing of the new packet based pulse detection. The pulse
demodulator for PWM_RAW is added (with some minor corrections). The
fineoffset sensor is switched to the new decoder and tested to work
correctly (both with test data and live).
Made a prototype for a PWM pulse demodulator. Broke out bit_packet
functions into own file to avoid circular references and for clean up.
Compiles cleanly, but untested.
Initial attempt at making CPU efficient demodulation by making a common
data sample processing. The CPU intensive sample based demodulation will
be replaced by a common pulse detector outputting a pulse data structure
for further processing.
This allows to open a device by a name (serial number string)
that has been programmed with rtl_eeprom -s.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
We now use Hz instead of KHz for calculating the PLL
parameters, and use the actual crystal frequency in Hz,
which allows to correct the frequency error in ppm.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
This commit adds the function rtlsdr_set_direct_sampling()
which can be used to enable/disable a mode where the
RTL2832 acts as a direct sampling receiver.
This mode disables the tuner, and by attaching a long
wire, or better, a 50Ω to 200Ω transformer and a lowpass-
filter to the In-phase ADC input (pin 1 or 2 of the RTL2832,
whereas pin 1 is at the molded dot) it is possible to listen to
shortwave radio stations. The coupling capacitors can be
left in place, but for better results they should be removed.
Tuning in this mode is done with the DDC, and since the
ADC samples with 28.8 MHz, tuning is possible from 0 to
28.8 MHz.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
Changing the license of the header as well,
which had been forgotten in commit
6aec27c6d0
- "tuner_e4k: relicense driver under GPLv2+"
Signed-off-by: Steve Markgraf <steve@steve-m.de>
This adds rtlsdr_set_agc_mode() to enable/disable it.
Thanks to Leif Asbrink for finding this setting.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
The driver was taken from http://git.linuxtv.org/ and adapted
for librtlsdr. Manual gain will be added in a follow-up commit.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
We now use Hz instead of kHz for the internal
calculations, and thus improve the tuning resolution
to ~50 Hz (tested with DAB).
Signed-off-by: Steve Markgraf <steve@steve-m.de>
The driver was taken from http://git.linuxtv.org/ and adapted
for librtlsdr. Also, fc0013_set_gain() was added.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
