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Patrick Dohmen e831d81502 Fix NOAA APT waterfall bandwidth 
The flowgraph for decoding NOAA APT images generates a waterfall with a
bandwidth depending on the default samplerate of the SDR hardware.
USRPB200 defaults to 500 ksps, which produces an output of 125 ksps
after the "first_stage_decimation" which is fixed to a value of 4.
Changing the hardware to an "rtlsdr" also changes the default
samplerate to 1 Msps which results in a waterfall bandwidth of 250 kHz
(+- 125 kHz). Connecting the waterfall sink behind the FFT Filter,
which has a decimation set to match an output samplerate of 125 kHz,
seems to be correct! This produces waterfalls with a bandwidth of
125 kHz (+- 62,5 kHz).

Fixes issue #128
 		2018-07-18 12:24:16 +03:00
..
CMakeLists.txt Add flowgraph for the FOX DUV decoder and update README 2018-03-24 21:43:18 +02:00
README.md Add documentation file 2017-07-24 16:43:13 +03:00
amsat_fox_duv_decoder.grc Set all decoders output to binary format 2018-03-25 17:49:10 +03:00
meteor_decoder.grc Fix METEOR flowgraph 2018-01-11 02:25:23 +02:00
mpla.ogg Add libfec as external project 2018-03-24 21:43:18 +02:00
noaa_apt_decoder.grc Fix NOAA APT waterfall bandwidth 2018-07-18 12:24:16 +03:00
satnogs_amsat_fox_duv_decoder.py Set all decoders output to binary format 2018-03-25 17:49:10 +03:00
satnogs_meteor_decoder.py Fix METEOR flowgraph 2018-01-11 02:25:23 +02:00
satnogs_noaa_apt_decoder.py Fix NOAA APT waterfall bandwidth 2018-07-18 12:24:16 +03:00
upsat_afsk_receiver.grc Redesign of the OOT module block structure 2016-12-04 17:09:10 +02:00
upsat_afsk_transmitter.grc Redesign of the OOT module block structure 2016-12-04 17:09:10 +02:00
upsat_fsk_receiver.grc Redesign of the OOT module block structure 2016-12-04 17:09:10 +02:00
upsat_fsk_transmitter.grc Redesign of the OOT module block structure 2016-12-04 17:09:10 +02:00
upsat_transceiver_cli.grc Redesign of the OOT module block structure 2016-12-04 17:09:10 +02:00
upsat_transceiver_cli.py Redesign of the OOT module block structure 2016-12-04 17:09:10 +02:00
upsat_transceiver_qt.grc Dev (#67) 2017-03-23 03:22:08 +02:00
upsat_transceiver_qt.py Remove obsolete examples 2018-03-20 20:40:13 +02:00

README.md

SatNOGS NOAA APT Decoder

--antenna: Specify the RX antenna of SDR device

--bb-gain: Specify the baseband (BB )gain of the SDR device

--dev-args: Set device specific arguments

--doppler-correction-per-sec: Doppler corrections per second

--file-path: File path of the output audio file

--if-gain: Specify the intermediate frequency (IF) gain of the SDR device

--image-file-path: File path of the output image file(s)

--lo-offset: Local oscillator offset

--ppm: Set PPM

--rf-gain: Specify the radio frequency (RF) gain of the SDR device

--rigctl-port: Specify the listening port of the rigctl daemon (rigctld)

--rx-freq: Set the target frequency of the satellite

--rx-sdr-device: Specify the RX SDR device. Possible values: ['usrpb200','usrp2','rtlsdr','airspy','hackrf']

--waterfall-file-path: File path of the output waterfall data file

--split-images: Split the two images contained in the received image. Use 1 for Yes, 0 for No

--sync: Synchronize image to the APT training sequence. Use 1 for Yes, 0 for No

--flip-images: Rotate images 180 degrees. Use 1 for Yes, 0 for No