Commit Graph

33 Commits

Author SHA1 Message Date
Martin Hauke 75765d49b7 Fixed many typos in output and source code comments 2019-07-15 21:14:52 +02:00
Andreas Eversberg f4988297a6 B-Netz: Refactoring tone and quality detection 2018-06-05 07:09:51 +02:00
Andreas Eversberg a5aee82e53 B-Netz: Some cleanups 2018-02-15 08:00:20 +01:00
Andreas Eversberg ab59a26a51 Restructure: Move mobile from common code to 'libmobile' 2017-12-03 08:45:54 +01:00
Andreas Eversberg 083ea4edaa Restructure: Move fsk from common code to 'libfsk' 2017-11-25 19:24:03 +01:00
Andreas Eversberg 8f6d0752df Restructure: Move squelch from common code to 'libsquelch' 2017-11-25 19:23:50 +01:00
Andreas Eversberg b605da1aff Restructure: Move timer from common code to 'libtimer' 2017-11-13 20:00:52 +01:00
Andreas Eversberg b32e0ab602 Implementation of RX level squelch (for A-Netz and B-Netz)
Use -S <dB> for setting RF level or use -S auto for auto level.

When squelch closes, audio is muted. If squelch is closed for some
seconds (depending on network), call is released. (RF loss condition)

The previous loss detection has been removed
2017-10-22 19:23:08 +02:00
Andreas Eversberg ba036de226 Add function to display measurements on screen
Use 'm' key to toggle display.
2017-10-12 19:46:30 +02:00
Andreas Eversberg ee61c4362b B-Netz: Use standard deviation to determine if an FSK frame is valid or not 2017-08-16 18:51:45 +02:00
Andreas Eversberg 41bd9999b1 B-Netz: Add metering pulse support (Gebuehrenimpuls) 2017-08-16 18:51:44 +02:00
Andreas Eversberg 534411d660 New common FSK implementation, replaces all individual implementations 2017-08-09 17:27:13 +02:00
Andreas Eversberg 538b4a42ec Add wave file playback to replace TX audio 2017-07-15 07:38:16 +02:00
Andreas Eversberg 4d10ee7c82 No "sdr" audio device option required anymore (when using SDR) 2017-05-17 20:06:42 +02:00
Andreas Eversberg 7e45f556ce Correcting all levels and move all remaining integer samples to sample_t
The leves are based on the standards of each mobile network. They
are adjusted to the specified frequency deviation now.
2017-02-18 21:01:13 +01:00
Andreas Eversberg 7ea3bc188d Move samples of int16_t format to sample_t, that is of type double
This prepares the correction of all levels
2017-02-18 21:01:08 +01:00
Andreas Eversberg 8b9277615d Neu structure for the paging process (B-Netz)
Paging tones are not created within sound_alsa.c
The audio API is now responsible to switch to paging channel.
In case of SDR, the sdr.c will switch frequency offset.
2017-02-18 21:00:50 +01:00
Andreas Eversberg 9ff8c3bb25 Rework on audio interface
Sound instance is now called audio instance and uses funcation pointers.
This gives a clean interface to be exchanged with other technologies,
linke SDR.
2017-02-18 21:00:45 +01:00
Andreas Eversberg d54d3ac265 prepare audio handling for multi carrier SDR 2017-01-07 06:28:24 +01:00
Andreas Eversberg 7585f9c22d Add function to change dsp state, more debug with channel info 2016-12-09 16:34:33 +01:00
Andreas Eversberg f111c50478 A-Netz / B-Netz: Add function to change state, debug with channel info
Change state uses a function rather than directly setting state
variable.

Some debug commands now use channel number. (for multi-trx setups)
2016-12-06 17:47:58 +01:00
Andreas Eversberg b1c452cf12 Changed command line options
* All lower case options define common options
* All upper case options define network specific options
2016-11-27 22:06:47 +01:00
Andreas Eversberg 34954b50de B-Netz: Rename special start digit for coin box phone type 2016-11-13 06:39:14 +01:00
Andreas Eversberg 8d7c7f4425 callref: Move callref from 'sender' to individual implementation of a, b, c-netz
Cellular networks use transaction instances, so callref is now member of
transaction object.
2016-10-02 09:06:03 +02:00
Andreas Eversberg 5bbbe11666 B-Netz: Rework on dialing start digit: New unknown type added 2016-07-24 12:31:06 +02:00
Andreas Eversberg 997f8eda43 B-Netz: Add timer for switching back from calling channel
The timer ensures that the paging sequence is sent out by sound card before
switching back to traffic channel
2016-05-29 17:17:49 +02:00
Andreas Eversberg bae12156a2 common code: Add input gain option 2016-05-08 15:49:45 +02:00
Andreas Eversberg 7434e21dc2 Multi transceiver support
This can be multiple transceivers on multiple sound cards.

Two transceivers can be bundled on one sound device as well, using both channels.
2016-05-08 15:48:13 +02:00
Andreas Eversberg 38692e430b B-Netz: Calibration of tone levels on TX and RX side 2016-05-08 08:11:17 +02:00
Andreas Eversberg 4356c93afa common: Add pre and de emphasis, if the radio does not support it
Connect to the oscillator of the transmitter - good girl!
You need to enable pre emphasis in this case.

Connect to the discriminator of the receiver - good boy!
You need to enable de emphasis in this case.
2016-04-24 15:14:56 +02:00
Andreas Eversberg 1146537d84 common code: Add feature to record received audio and replay it
-W <file.wav> writes a wave file of received audio
-R <file.wav> reads a wave file to feed into decoder

This way you can record a phone and later debug without a phone
and radio equipment.
2016-03-27 17:56:04 +02:00
Andreas Eversberg 287b914b56 bnetz: Simplifying 'telegramm' handling 2016-03-13 09:12:19 +01:00
Andreas Eversberg 946c9ce10a initial git import 2016-03-13 09:12:11 +01:00