Andreas Eversberg
3a54f46b81
C-Netz: Fixup debug output at database
2016-05-13 09:37:02 +02:00
Andreas Eversberg
e2a9c2c6a5
Automatic FSK polarity selection on TX side
...
This is done by simulating two cells with different polarities.
On first message from mobile station, the cell with the correct
polarity is used, the other is disabled.
On RX side the polarity is not selected, since FSK decoder detects
polarity for every frame.
2016-05-13 09:37:01 +02:00
Andreas Eversberg
021c34a899
Add geo locations of A-Netz and B-Netz towers. (not exact location)
2016-05-08 16:11:13 +02:00
Andreas Eversberg
57ba648ac4
C-Netz: Add tiny database to track if phones are online
...
Reject calls, if not online.
Use an interval to check if the phones are still online.
2016-05-08 15:53:00 +02:00
Andreas Eversberg
bae12156a2
common code: Add input gain option
2016-05-08 15:49:45 +02:00
Andreas Eversberg
ba91ee82a7
Work on documentation
2016-05-08 15:49:39 +02:00
Andreas Eversberg
1ce67c14e9
C-netz: Tuning scrambler
2016-05-08 15:49:29 +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
de0ce7ba98
C-Netz: Correct clear cause on clearing by mobile station
2016-05-08 15:47:01 +02:00
Andreas Eversberg
8b6b87d8cc
C-Netz: Lowest mobile station power by default
2016-05-08 15:46:51 +02:00
Andreas Eversberg
95f44e9840
C-Netz: Fixed typo
2016-05-08 15:46:43 +02:00
Andreas Eversberg
11302272ce
C-Netz: Minor fix on clock speed indication
2016-05-08 15:46:34 +02:00
Andreas Eversberg
97c9eee322
Fix display of correct program name
2016-05-08 08:11:35 +02:00
Andreas Eversberg
97d4e908a2
Fix test binary location in .gitignore
2016-05-08 08:11:26 +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
11487eefe8
B-Netz: Minor fixes on signals
2016-05-08 08:11:02 +02:00
Andreas Eversberg
aae58d5a68
A-Netz: Calibration of tone levels on TX and RX side
2016-05-06 07:05:52 +02:00
Andreas Eversberg
b73894ac49
B-Netz / NMT: minor changes at signal detection
2016-05-06 07:05:40 +02:00
Andreas Eversberg
47dbf094d9
NMT: Changes in parity check
2016-05-06 07:05:30 +02:00
Andreas Eversberg
28e7f1e9d1
common code: Remove DC level before using Goertzel filter
...
A DC level degrades the quality of the filtered result
2016-05-01 15:15:19 +02:00
Andreas Eversberg
0c99848120
common code: Make preemphasis 0 dB @ 1000 Hz
2016-05-01 15:14:57 +02:00
Andreas Eversberg
16acdbf59d
Implementation of C-Netz (German mobile telephone system)
2016-04-24 15:19:00 +02:00
Andreas Eversberg
4b3e3385b5
common code: Fix sample rate conversion
2016-04-24 15:18:59 +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
5062628e52
NMT: Calculate quality of sync sequence and drop in case of bad quality
...
This eliminates chance of findig a sync sequence in noise or speech
2016-04-24 15:14:56 +02:00
Andreas Eversberg
c0cd74ac85
NMT: Show levels of received frames
2016-04-24 15:12:21 +02:00
Andreas Eversberg
2a092b8cf7
Fixing compander
2016-04-24 15:10:25 +02:00
Andreas Eversberg
9de121109d
common code: Sample rate conversion now supports any rate above 8000 Hz
2016-04-17 16:49:39 +02:00
Andreas Eversberg
05402283df
common code: Add function request information, if timer is running
2016-04-17 16:49:08 +02:00
Andreas Eversberg
21865b6f0f
Add missing RANLIB definition to configure.ac
2016-04-02 18:34:04 +02:00
Andreas Eversberg
17a93b501b
NMT: Fix hint and list of traffic area configuration
2016-03-27 17:56:04 +02:00
Andreas Eversberg
4d84da31a8
Fixing timer handling
...
Usage of more than one timer caused a lock-up.
2016-03-27 17:56:04 +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
0aa749d27b
WIP: NMT docs
2016-03-26 17:35:20 +01:00
Andreas Eversberg
a5db02775e
fixup debug class definition: rename DFSK and DAUDIO to DDSP
2016-03-15 19:26:13 +01:00
Andreas Eversberg
57caa536cf
Implementation of NMT (Nordic Mobile Telephoe) network
2016-03-13 19:42:19 +01:00
Andreas Eversberg
cbfc818cce
Add compander to common part
2016-03-13 16:18:42 +01:00
Andreas Eversberg
4ab1cd5026
Add DTMF coder to common part
2016-03-13 13:38:35 +01:00
Andreas Eversberg
3bee5e728a
bnetz: Allow calling the phone using '05' prefix
2016-03-13 09:12:43 +01:00
Andreas Eversberg
e9234e3926
anetz: Add release timer, so station keeps blocked for a while
...
This prevents other mobile phone or outgoing call to seize the
base station before the current phone releases the transmitter.
2016-03-13 09:12:26 +01:00
Andreas Eversberg
0dc81fe210
Prepare for NMT: Fixes and improvements at common code
2016-03-13 09:12:23 +01:00
Andreas Eversberg
287b914b56
bnetz: Simplifying 'telegramm' handling
2016-03-13 09:12:19 +01:00
Andreas Eversberg
d21be383a6
anetz/bnetz: Move option 'loss detection' from common code to individual code
2016-03-13 09:12:16 +01:00
Andreas Eversberg
9b8e359264
anetz/bnetz: Remove redundant code to enter idle state
2016-03-13 09:12:14 +01:00
Andreas Eversberg
01a29ccfaa
fixup: A-Netz documentation
2016-03-13 09:12:13 +01:00
Andreas Eversberg
946c9ce10a
initial git import
2016-03-13 09:12:11 +01:00
