fc1c5de547
Fixed pointer corruption bug in timer.c
2017-11-11 09:36:05 +01:00
8a74805ea6
NMT: Add support for receiving 8-Bit-SMS, because it is mandatory
...
Benefone Dragon uses this coding scheme for SMS-Submit.
2017-11-11 09:35:46 +01:00
486d2d5dbe
NMT: Fixup assign traffic channel
...
dms_call state now belongs to transaction, so it is kept while switching
to traffic channel.
2017-11-11 09:35:44 +01:00
ce2bb8ec43
Fixup call control split
2017-11-11 05:55:32 +01:00
e9583d5661
R2000: Make recall work when call is directly answered by call_up_setup
...
It is not recommended to use recall function with built-in MNCC (auto-answer),
because the phone is not fast enough to switch back to call control channel
and so it misses the first paging. But anyway it works.
Also the channel layout is checked for having traffic and control channel.
2017-11-05 17:00:01 +01:00
aeb31a7a34
A-Netz: Number of operator can be defined now
...
Since A-Netz does not allow automatic dialing, the call is forwarded
to an operator. Use -O <number> to change the default operator's number.
2017-11-05 16:59:59 +01:00
ca6d70566c
Fixup displaying measurements (array overflow)
2017-11-05 16:59:59 +01:00
e8a3306eee
Add option to cross-connect calls; Calls between mobiles are now possible
...
Use -x to enable call cross-connect. No MNCC socket, no call device must
be specified!
Be sure to have at least one control channel and two voice channels.
Alternatively you can use one combined control/voice channel and one
voice channel.
2017-11-05 16:59:58 +01:00
87a21a285a
NMT: Assign traffic channel for outgoing and incoming calls
...
This way the control channel stays available for other (idle) phones.
No more loss of coverage for other phones, when a call to a mobile is
made.
It is still possible to define a combined control+traffic channel.
(e.g. for single channel setup)
2017-11-05 16:58:37 +01:00
5c33b8824b
AMPS/TACS: Fixing release towards mobile station on FVC
...
We must continuously send release frames until Signaling Tone changes,
so we know that the phone has received the release.
2017-11-05 16:58:36 +01:00
ee3fbeb03b
Split call control from built-in call console by using MNCC layer
2017-11-05 16:58:31 +01:00
91b48c09de
TV: Fix case where no SDR nor wave file has been selected
2017-10-22 19:23:18 +02:00
5e14471eb6
B-Netz: Fixup of metering pulse
2017-10-22 19:23:17 +02:00
2c4d0ee687
SDR: Check if the required bandwidth can be handled by given sample rate
2017-10-22 19:23:09 +02:00
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
f7a0e4622b
Display channel offset with TX and RX channel frequencies on startup
2017-10-22 19:23:06 +02:00
e67c171035
SDR: Minor fixes in error condition handling
2017-10-22 19:23:05 +02:00
f7476bce41
NMT-900: Handle channels >= 1025 correctly
2017-10-22 19:23:04 +02:00
3218d1a8e0
NMT: Fixed segfault when decoding certain (invalid) messages
2017-10-22 19:23:03 +02:00
975e34211b
Call control: Minor logging fixes
2017-10-22 19:23:02 +02:00
ae29f84ed7
Fixed typo
2017-10-12 19:46:32 +02:00
595fd845e0
NMT: Removed double implementation of caller ID encoding
2017-10-12 19:46:32 +02:00
ba036de226
Add function to display measurements on screen
...
Use 'm' key to toggle display.
2017-10-12 19:46:30 +02:00
e84d7a082c
Use braces to make GCC happy
2017-10-02 12:34:38 +02:00
c645ef9c14
R2000: Use correct debug category
2017-10-02 12:34:35 +02:00
1a4a08386c
Only dial if call is on-hook or disconnected
2017-10-02 12:34:34 +02:00
3f2f0fdd8c
C-Netz: Show standard deviation of bit levels instead of jitter
2017-10-02 12:34:33 +02:00
5ea48588e5
AMPS/TACS: Change audio level range
2017-10-02 12:34:31 +02:00
3e1da04f14
AMPS: Minor fixes to loopback test
2017-10-02 12:34:27 +02:00
f469879ed0
SDR: Use filter to remove harmonics caused by downsampling/upsampling
...
This drastically increases the signal-noise-ratio and removes co-channel
interferences. It gains CPU usage, but only on SDR threads, not on the
main thread.
2017-09-24 15:59:24 +02:00
ff5faa8697
SDR: Improved IQ plot display, increase dynamics of spectrum display
2017-09-24 15:57:56 +02:00
c1fe179d5d
AMPS: Fix 'use-after-free-bug' after destroying transaction
2017-09-24 14:11:54 +02:00
b6468b585d
NMT: Minor fixes on frame data
2017-09-22 16:51:47 +02:00
08dd180ea0
Add echo test feature to check mobile phone's mic + speaker
...
Add '-e' to command line option, but do not select MNCC nor call device
2017-09-21 20:29:30 +02:00
274cb7992b
SDR: Improvement of spectrum view, peaks are drawn correctly
2017-09-16 10:48:48 +02:00
5b1956fe49
Move sms and dms code (NMT) to separate lib.a
2017-09-11 20:37:03 +02:00
b6326aa473
Move commonly used German tones (A/B/C-Netz) to separate lib.a
2017-09-11 20:35:18 +02:00
7017fd7b3c
Give hint to alter PKG_CONFIG_PATH, if SoapySDR or UHD was not found
2017-09-11 20:31:29 +02:00
d28a5df024
R2000: Minor fix in channel description
2017-09-03 19:13:21 +02:00
9205767f94
SDR: Display spectrum graph together with channel numbers and position
2017-09-02 15:41:11 +02:00
496aff5a79
Add implementation of analog TV signal generator (PAL so far)
...
Quick and dirty Howto:
make && tv/osmotv --sdr-soapy --sdr-tx-gain 60 -r 15000000 -c 21 tx-fubk --sdr-tune-args "OFFSET=-3000000"
2017-09-02 07:34:50 +02:00
a52c89800c
SDR: Split SDR config from main_mobile.c to sdr_config.c
2017-09-02 07:34:48 +02:00
94ed39f5e2
JTACS: Implementation of the Japanese variant of TACS
2017-09-01 18:42:54 +02:00
489ab9506c
TACS: Fix power levels
2017-09-01 18:42:53 +02:00
05c516ca16
SDR: Fixed stack overflow by allocating memory instead of local buffers
2017-09-01 18:42:52 +02:00
eb0c123433
C-Netz: Fixed overflow bug
2017-09-01 18:42:51 +02:00
dfdad21e3f
C-Netz: Work on system informations, metering and call queues
...
- Make system informations configurable
- Simulate call mertering
- Support for call queues on busy voice channels
2017-09-01 18:42:51 +02:00
3bfba37fff
Corrected print messages in wave file processing.
2017-09-01 18:42:50 +02:00
cff7622f5c
Move mobile phone specific code from libcommon.a to libmobile.a
2017-09-01 18:42:49 +02:00
3c0bcce97b
Move German tones from common code to individual implementation
2017-09-01 18:42:48 +02:00
d2472cfca6
Emphasis: Add filter to prevent emphasis above 4000 Hz
...
Remove obsolete filter from fsk.c.
2017-09-01 18:42:47 +02:00
743d147d16
SDR: Turn TX power off if requested by network
...
The power level is ramped smoothly within 1 ms up or down.
R2000, AMPS and C-Netz turn off power when voice channel is not i use.
C-Netz turns off power between OgK timeslots.
2017-09-01 18:42:46 +02:00
1c2e9180a2
Radiocom 2000: Use high-pass filter to remove supervisory signal
2017-09-01 18:42:45 +02:00
ae2b0cce0c
B-Netz: Be more tollerant with quality of continuous tones
2017-09-01 18:42:44 +02:00
064d95f37e
Fixup: SDR: Show IQ data with three colors
...
Use correct threshold values to display colors
2017-09-01 18:42:42 +02:00
ea7cbb8675
SDR: Add option to enable TX timestamps on UHD devices (disabled by default)
2017-08-16 18:51:47 +02:00
8489914bf0
SDR: Add time consumption debug code
2017-08-16 18:51:46 +02:00
42a87c1c2f
SDR: Name SDR TX and RX threads
2017-08-16 18:51:46 +02:00
ee61c4362b
B-Netz: Use standard deviation to determine if an FSK frame is valid or not
2017-08-16 18:51:45 +02:00
41bd9999b1
B-Netz: Add metering pulse support (Gebuehrenimpuls)
2017-08-16 18:51:44 +02:00
275be50225
R2000: Fixes
2017-08-16 18:51:43 +02:00
3afcac8342
SDR: Add option to swap RX and TX frequencies (for testing)
2017-08-10 17:42:54 +02:00
f2d439c1ae
UHD: Remove buggy sample rate check
2017-08-10 15:59:29 +02:00
999b6a2b4d
UHD: Make frequency settings more tollerant (+-100 Hz are accepted)
2017-08-09 17:27:14 +02:00
534411d660
New common FSK implementation, replaces all individual implementations
2017-08-09 17:27:13 +02:00
ffd3b848e1
Implementation of "Radiocom 2000", the analog French mobile network
2017-08-09 17:27:12 +02:00
8ce3ff455d
Add incoming answer to call control, also allow to send recall tone
2017-08-09 17:27:08 +02:00
d20b41a457
Fixed command line option for call audio device (headset)
...
--call-device option now works.
Thanx to Fabricio pointing to this bug.
2017-08-08 12:54:45 +02:00
7c9ce960d7
Fixes of checking digits
2017-08-08 12:54:21 +02:00
5090f5a18d
SDR: Show IQ data with three colors to detect input overdrive
...
green: up to 0.45
yellow: between 0.45 and 0.9
red: above 0.9
2017-08-08 12:54:03 +02:00
0cbd9657d2
Move Hagelbarger error correction code from NMT to common code
...
It will be used by Radiocom 2000 also.
Some minor fixes and improvements apply.
2017-08-08 12:53:48 +02:00
6c64025717
Move FFSK modem from NMT to common code, so it can be used by other networks
2017-08-08 12:53:34 +02:00
92ce6d4a42
SDR: Using threads for read and write when doing resampling
2017-08-08 12:53:02 +02:00
3274812eab
NMT-900 System implementation
...
NMT can now be run as 450 or 900 Network.
2017-08-08 12:52:45 +02:00
0c9de251be
NMT: Implement Hagelbarger Code
...
This will correct burst errors of received messages. If the message
is too corrupted, it will be ignored, because some element may not
match then. The digits and line signals are checked for consistency,
since they are repeated serveral times in a message.
2017-08-08 12:52:29 +02:00
cd9cb9a107
Minor fix for NMT debug output
2017-07-15 12:45:20 +02:00
a088536533
Minor fix for IQ data display
2017-07-15 12:45:20 +02:00
fda224c27f
Fixing and improving SDR support (SoapySDR and UHD)
...
- Soapy SDR now works.
- Channels can be selected.
- Antennas can be listed and selected.
- Device args, tune args, stream args can be specified.
2017-07-15 12:45:19 +02:00
538b4a42ec
Add wave file playback to replace TX audio
2017-07-15 07:38:16 +02:00
aa20d4e50e
Cleanup common/Makefile.am
2017-07-15 07:38:15 +02:00
557d19de66
NMT: Show trafic areas in hex and allow to select unsupported areas
2017-07-15 07:38:14 +02:00
3774519631
NMT: Fixed "use after free" bug
2017-07-15 07:38:13 +02:00
7af886c600
NMT: Fixed NMT digit decoding
2017-07-15 07:38:13 +02:00
085ceb9173
Minor fixes to compandor
2017-07-15 07:38:12 +02:00
3ce50f8ab3
AMPS: Fixes in message display and function names
2017-07-15 07:38:10 +02:00
3788b3e8a5
TACS support (variations added to AMPS code)
...
These are:
- Bandwidth only 25 KHz, so lower deviations
- Data rate only 8000 KHz
- SID is called AID (Area ID)
- MIN1 coding is different
2017-07-15 07:38:09 +02:00
d52f4cd29d
NMT: Mark Benelux and Czech/Slovak networks as tested
...
I have tested the network with B/NL/L and CZ/SK phones, and they work!
2017-06-15 18:28:26 +02:00
1aebedc66a
NMT: Fixed line signal description
2017-06-11 09:01:21 +02:00
7a9762e28e
NMT: Disable Supervisory signal during DMS (SMS) transfer and use Timeout
...
There is no Supervisory signal during DMS transfer, so there must be
no timeout for Supervisory signal. Instead, the SMS layer will timeout
after some seconds without receiving data.
2017-06-11 08:13:52 +02:00
3e86ef95c4
B-Netz: Minor printf fix
2017-06-10 17:49:59 +02:00
19afb792b5
NMT: Fix and adjustements to supervisory signal detection
2017-06-10 17:11:47 +02:00
50b2021d21
NMT 450: Support for other European counties, like Belgium, Czech, Slovakia
2017-06-10 13:08:51 +02:00
dbdedfe1a1
AMPS: Fixed selecting right CRC values for FOCC words
2017-06-10 13:08:26 +02:00
d23672354f
Add option to set MNCC socket name (to run multiple base stations)
2017-06-10 13:08:26 +02:00
329463bb8c
SDR: Add option to give channel number
...
Using SoapySDR server allows to run different networks on multi channel
SDR devices.
2017-06-10 13:08:25 +02:00
aef4cf0997
Make spectrum display nicer by plotting continuous lines between samples
2017-06-10 13:08:24 +02:00
e0534db15c
Make spectrum display a little nicer by using '|' instead of ':'
2017-06-10 13:08:23 +02:00
e653475ff7
NMT: Allow NULL (B'0000') to be used as country selector in traffic area
2017-06-10 13:08:23 +02:00
57d4d1739e
AMPS/C-Netz: Correctly release pending transaction when creating a new one
...
If transactions is created, look on all channels for pending transaction
with same subscriber.
1. Remove that transaction.
2. Make channel return to IDLE.
3. Release call, if callref exists.
2017-06-10 13:08:22 +02:00
6adfcf7466
Status display
...
Alows to show status of current channels and users
2017-06-10 13:08:21 +02:00
bb64c6b3ba
AMPS: Add DTX support
...
When DTX is enabled (-S dtx=2 or 3), a missing SAT tone causes the receiver
to mute audio and insert a low level of comfort noise.
Also the missing SAT tone will not cause the connection to be terminated.
2017-06-10 13:08:19 +02:00
2c1ab89723
Notify about usage of channels that are next to each other
...
It is required to have at least one free channel between channels, to
avoid interferences.
This is only a warning, it will not reject channels next to each other.
2017-05-24 14:01:25 +02:00
fc3b3e07be
Finetuning LOSS (noise) detection
...
The algorithm is still bad, but works in most cases
2017-05-24 14:00:08 +02:00
56024b384b
AMPS: Serveral minor fixes
2017-05-23 18:11:10 +02:00
76a3484c5c
C-Netz: Make demodulation algorithm (slope or leve) slectable via option
...
By default (auto), the algorithm is selected, depending on sound card
or SDR usage. For testing and debugging purpose, the algorithm can be
forced.
2017-05-19 19:11:59 +02:00
c086e66b7c
minor cleanups
2017-05-17 20:14:37 +02:00
0557bbbc43
SDR: Checking given parameters with a tollerance of up to 0.001
...
Rounding errors may cause given parameters to be changed a little.
When comparing the set-values with the get-value, a small amount
of tollerance must be allowed.
Thanx to Syvain, pointing to this bug!
2017-05-17 20:06:47 +02:00
683078a7a0
SDR: Spectrum display will not scale FFT result
...
Instead the greatest possible width that will fit into the window will
be used. This width is 2 to the power of N.
2017-05-17 20:06:46 +02:00
ef7ff26793
C-Netz: SDR now uses zero-crossing to detect level changes.
...
This does not work with analog radio, but with SDR it works.
The quality should be better and the process is faster.
2017-05-17 20:06:46 +02:00
9d87b5bf0f
C-Netz: Improved transmission of speech
...
The speech is now correctly ramped up and down during pause bits.
2017-05-17 20:06:44 +02:00
12dcc6c40f
Minor fixes on AMPS messages
...
- Flipping polarity is now performed after B/I has been applied
- Correcting sysinfo
2017-05-17 20:06:43 +02:00
4d10ee7c82
No "sdr" audio device option required anymore (when using SDR)
2017-05-17 20:06:42 +02:00
ca10048e5c
Rename filter -> iir_filter (file name and instance name)
...
This is useful when using fir_filter in the future.
2017-05-15 21:46:32 +02:00
d03443c4f1
SDR: Added SoapySDR's compiler flags to common/Makefile
2017-05-15 21:46:30 +02:00
c04d046210
SDR: Fixed SoapySDR's arguments parsing
2017-05-15 21:46:30 +02:00
fbdb9ece01
SDR: Allow direct IQ TX and RX instead of fm modulating a list of channels
...
This is performed by reading and writing IQ data to "sample" pointer with
channel number set to 0.
2017-05-15 21:46:29 +02:00
65694f3b80
SDR: disable TX or RX by setting TX or RX frequency to 0
...
This way it is possible to use SDR simplex
2017-05-15 21:46:29 +02:00
6e0e0c9ce8
fixup Rework on audio buffer management
2017-05-15 21:46:28 +02:00
9dda9e1efc
SDR: Add option to set IF bandwidth. If not defined, sampling rate is used.
2017-05-15 21:46:27 +02:00
1445ca2fac
SDR: Add option to send (previously recorded) IQ data instead of TX data
2017-05-15 21:46:26 +02:00
369bda87a9
C-Netz: Improved decoder debugging
...
FM decoder debug output is now written to text files for better
debugging of process.
2017-05-15 21:46:25 +02:00
8e0d7d2513
samplerate.c: Allow transcoding to lower sample rate other than 8000 Hz
2017-03-04 16:52:20 +01:00
3fc4fc54be
main_common: Move init and cleanup function to main function
2017-03-04 07:12:12 +01:00
4201717f36
Rework on audio buffer management
...
Use function to get samples to be sent to fill audio buffers to a
level. This replaces the function that only shows how much data
is in the buffer.
This way the function itself can control how much data will be
sent.
2017-03-04 06:35:38 +01:00
2e1999b1ee
Start streaming of sound/SDR just before main loop
...
This prevents buffer overflow during init/creation processes
2017-02-25 07:09:53 +01:00
04fd1ddcea
Use thread to record and playback wave files without blocking
2017-02-25 06:29:09 +01:00
f689244f98
C-Netz: OgK must be on first channel, so sync works correctly
2017-02-18 21:02:56 +01:00
438ce08add
SoapySDR support
...
There is no time stamp handling. It is just TX'ing in advance and
synchronous to received RX rate.
2017-02-18 21:02:55 +01:00
17b6124122
C-Netz: Remove useless -V option
2017-02-18 21:02:54 +01:00
58ebc15292
Add test to measure performance of FM modulation and filtering
2017-02-18 21:02:53 +01:00
4de1e0188d
C-Netz: Add low pass filter to eliminate high frequency noise
...
This improves the FSK decoding quite allot, especially with SDR.
2017-02-18 21:02:52 +01:00
290b365d67
SDR: Move FM modulation algorithms to a seperate file
2017-02-18 21:02:51 +01:00
4c0f8e7e95
Rework of sample rate conversion by using linear interpolation
2017-02-18 21:02:51 +01:00
47f74b38ce
SDR transmits with full amplitude
2017-02-18 21:02:50 +01:00
6a3cfd608e
Add ascii-art spectrum analyzer for SDR support
2017-02-18 21:02:49 +01:00
3fb2ade352
C-Netz: Fix release of call process when no dialing was received from phone
2017-02-18 21:02:48 +01:00
0611f62b52
Show channel number and basic info when channel was created
2017-02-18 21:02:47 +01:00
5f1d7bc970
C-Netz: Improve clock speed measurements.
...
Sound card's clock measurements only requires a few minutes to get sub-ppm
accuracy results.
2017-02-18 21:02:46 +01:00
54ed5d5f82
AMPS: Fixed setting of signal polarity when using SDR
2017-02-18 21:01:19 +01:00
faa3dfb7d4
C-Netz: Make average to clock measurements for a quicker result
2017-02-18 21:01:19 +01:00
5026e161aa
Open audio device for call (headset) after everything is prepared
...
It is not allowed to stall after trigger reading of audio device.
2017-02-18 21:01:18 +01:00
8cb0187133
C-Netz: Remove the obviously useless noise function for unused timeslots
2017-02-18 21:01:17 +01:00
f5e9a97c31
--rx-gain option works now only with sound card
2017-02-18 21:01:16 +01:00
2b4f5bb228
Minor fix in help output
2017-02-18 21:01:15 +01:00
f72c53757d
B-Netz, NMT: Improved check for minimum required sample rate
2017-02-18 21:01:15 +01:00
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
bd7ccc5fa0
Add global DC-Filter and remove all individual DC-Filters
2017-02-18 21:01:12 +01:00
71e556e7ff
Work on emphasis filter: Neutral @ 1000 Hz; Use filter before de-emphasis
2017-02-18 21:01:11 +01:00
b3fd53b165
Test filter uses a dB graph to show the response graphically
2017-02-18 21:01:10 +01:00
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