Andreas Eversberg
b605da1aff
Restructure: Move timer from common code to 'libtimer'
2017-11-13 20:00:52 +01:00
Andreas Eversberg
1b183864bb
Restructure: Move sample rate conversion from common code to 'libsamplerate'
2017-11-13 19:34:05 +01:00
Andreas Eversberg
669705c6ed
Restructure: Move filters from common code to 'libfilter'
2017-11-13 19:15:09 +01:00
Andreas Eversberg
3b7c515f6f
add new libs.a to .gitignore
2017-09-11 20:42:06 +02:00
Andreas Eversberg
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
Andreas Eversberg
94ed39f5e2
JTACS: Implementation of the Japanese variant of TACS
2017-09-01 18:42:54 +02:00
Andreas Eversberg
cff7622f5c
Move mobile phone specific code from libcommon.a to libmobile.a
2017-09-01 18:42:49 +02:00
Andreas Eversberg
ffd3b848e1
Implementation of "Radiocom 2000", the analog French mobile network
2017-08-09 17:27:12 +02:00
Andreas Eversberg
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
Andreas Eversberg
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
Andreas Eversberg
58ebc15292
Add test to measure performance of FM modulation and filtering
2017-02-18 21:02:53 +01:00
Andreas Eversberg
ac0da3f76e
Filter improvement: LP and HP filters, added test function
...
The -3 dB level at cut-off frequency is now maintained for multiple
iterations.
2017-02-18 21:01:04 +01:00
Andreas Eversberg
7a2ff388a4
Add .dirstamp to .gitignore
2016-11-13 06:50:44 +01:00
Andreas Eversberg
e029a6a858
C-Netz: Generator and Arduino programmer for SIM cards
...
It supports the simple memory cards only. Works only with very early
phones, like BSA51 (tested so far).
An SLE4428 card must be written. The card must not have any protected
serial number area. Also the card must read all 416 written bits via ATR,
not only the first 32 bits.
2016-10-03 13:33:33 +02:00
Andreas Eversberg
e7fa08b6df
NMT / SMS: Short Message Service support
2016-07-09 15:16:16 +02:00
Andreas Eversberg
64c829909b
NMT / DMS: User data facility support (required for SMS)
2016-07-09 11:27:24 +02:00
Andreas Eversberg
54266a9937
Minor fixup to .gitignore: ignore test_compandor
2016-07-06 16:18:51 +02:00
Andreas Eversberg
d2c4ca4fa9
Implementation of Advanced Mobile Phone Service (AMPS)
2016-06-17 17:03:29 +02:00
Andreas Eversberg
97d4e908a2
Fix test binary location in .gitignore
2016-05-08 08:11:26 +02:00
Andreas Eversberg
16acdbf59d
Implementation of C-Netz (German mobile telephone system)
2016-04-24 15:19:00 +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
2a092b8cf7
Fixing compander
2016-04-24 15:10:25 +02:00
Andreas Eversberg
57caa536cf
Implementation of NMT (Nordic Mobile Telephoe) network
2016-03-13 19:42:19 +01:00
Andreas Eversberg
946c9ce10a
initial git import
2016-03-13 09:12:11 +01:00