743d147d16
SDR: Turn TX power off if requested by network
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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
8ce3ff455d
Add incoming answer to call control, also allow to send recall tone
2017-08-09 17:27:08 +02:00
538b4a42ec
Add wave file playback to replace TX audio
2017-07-15 07:38:16 +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)
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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
dbdedfe1a1
AMPS: Fixed selecting right CRC values for FOCC words
2017-06-10 13:08:26 +02:00
57d4d1739e
AMPS/C-Netz: Correctly release pending transaction when creating a new one
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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
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Alows to show status of current channels and users
2017-06-10 13:08:21 +02:00
bb64c6b3ba
AMPS: Add DTX support
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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
56024b384b
AMPS: Serveral minor fixes
2017-05-23 18:11:10 +02:00
12dcc6c40f
Minor fixes on AMPS messages
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- 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
3fc4fc54be
main_common: Move init and cleanup function to main function
2017-03-04 07:12:12 +01:00
438ce08add
SoapySDR support
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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
0611f62b52
Show channel number and basic info when channel was created
2017-02-18 21:02:47 +01:00
54ed5d5f82
AMPS: Fixed setting of signal polarity when using SDR
2017-02-18 21:01:19 +01:00
7e45f556ce
Correcting all levels and move all remaining integer samples to sample_t
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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
7ea3bc188d
Move samples of int16_t format to sample_t, that is of type double
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This prepares the correction of all levels
2017-02-18 21:01:08 +01:00
538a959128
Indexing tables by casting index to unsigned integer only
2017-02-18 21:01:06 +01:00
2d8d7e62c1
Use global init/cleanup function
2017-02-18 21:00:58 +01:00
a5fd375237
Fixed typos
2017-02-18 21:00:55 +01:00
fee4846c3f
SDR forces default settings: emphasis and FSK polarity
2017-02-18 21:00:52 +01:00
8b9277615d
Neu structure for the paging process (B-Netz)
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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
57993e3e48
Support for UHD SDR interface
2017-02-18 21:00:49 +01:00
c5cf88ce57
Prepare for SDR: Add bandwidth and deviation info to sender instance
2017-02-18 21:00:47 +01:00
9ff8c3bb25
Rework on audio interface
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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
d54d3ac265
prepare audio handling for multi carrier SDR
2017-01-07 06:28:24 +01:00
3400f555fe
Add common function to give hotkey help
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* Key to dial and hangup
* Key to display wave form
2016-12-09 16:42:38 +01:00
7585f9c22d
Add function to change dsp state, more debug with channel info
2016-12-09 16:34:33 +01:00
eed826387a
work on docs
2016-12-06 17:46:12 +01:00
Andreas Eversberg
0b43b63d1f
Fixed command line option descriptions
2016-11-29 10:59:09 +01:00
d52d0242bf
Output enhancements
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* no more flicker on wave form display while scrolling
* dialing console gets cleared/overwritten correctly
* fixes on stderr output
2016-11-29 07:49:21 +01:00
b1c452cf12
Changed command line options
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* All lower case options define common options
* All upper case options define network specific options
2016-11-27 22:06:47 +01:00
2a4abc62b2
Move realtime scheduling and signal handling to common code
2016-11-13 06:37:56 +01:00
63f39e105b
AMPS: Fixes for multi transceiver support
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- Fix channel assignment
- Voice channel sends test tone when idle
- Changed paging timeout
- Minor fix of SCC field in 2 messages
2016-10-30 09:37:14 +01:00
bb92a1f3b0
AMPS: Add option to be more tollerant to sync detection
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Also it detects more false syncs, but this is ignored if decoding fails.
2016-10-29 14:38:49 +02:00
052fe5d1de
AMPS: Improved level detection of bit decoder
2016-10-29 14:38:46 +02:00
3a3c1c258b
AMPS: Show number of correct words (CRC) for each FOCC frame
2016-10-28 17:07:38 +02:00
1ea95de120
C-Netz: Use emphasis with 200 uS time constant
2016-10-23 08:46:05 +02:00
27938d111e
Added and fixed extra compiler warnings
2016-10-07 08:55:18 +02:00
Andreas Eversberg
b205cfcf03
B-Netz: Work on pilot signal generation
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The pilot signal to switch to channel 19 can be:
* a tone
* a tone that is turned off (notone)
* positive amplitude
* negative amplitude
2016-10-03 14:56:15 +02:00
b07509cf2d
AMPS: Correcting channel number range
2016-10-02 09:06:06 +02:00
ad3c88e064
AMPS: Callref is moved completely to transaction object
2016-10-02 09:06:04 +02:00
53814241b3
AMPS: Note about future callref handling
2016-08-03 12:03:53 +02:00
038ce9d1b7
Add info key 'i' to show some states.
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Currently showing C-Netz attached subscribers
2016-08-03 12:03:49 +02:00
1a3e536010
AMPS: Fix transaction list corruption
2016-08-01 13:06:03 +02:00
6a5af9aeac
Typos: acknowledgement -> acknowledgment signalling -> signaling
2016-07-24 12:31:08 +02:00
4745b29115
NMT: Caller ID support
2016-07-24 12:31:07 +02:00
f39ee2f15a
common code: Add support for main loop handler
2016-07-09 11:27:02 +02:00
Andreas Eversberg
Andreas Eversberg