T2 functionallity

[BeMax]

Hello

How do I test T2 functionallity ? I'm using Tvheadend with this card but can only get DVB-T working, no T2. As I understand scan does not support T2 ? I did some test with dvbv5-scan but I don't really get any good readable results. Maybe my configuration file is wrong. I'm using LTS 14.04 (updated to this date) and TBS drivers v141225.

[crazycat]

you must set delivery system as DVB-T2

[BeMax]

Ok. I have the following conf file

Code: Select all

[MUX1]
 DELIVERY_SYSTEM = DVBT
 FREQUENCY = 546000000
 BANDWIDTH_HZ = 8000000
 MODULATION = QAM/64
 TRANSMISSION_MODE = 8K

[MUX6]
 DELIVERY_SYSTEM = DVBT2
 FREQUENCY = 570000000
 BANDWIDTH_HZ = 8000000
 MODULATION = QAM/256
 TRANSMISSION_MODE = 32K


And the result from
[email protected]:~$ dvbv5-scan -a 3 dvb.conf
INFO Scanning frequency #1 546000000
Lock (0x1f) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
Segmentation fault

If I instead run
[email protected]:~$ dvbv5-scan -a 3 -v dvb.conf

The results will be (parts in the middle removed)

Code: Select all

[email protected]:~$ dvbv5-scan -a 3 -v dvb.conf
using demux '/dev/dvb/adapter3/demux0'
INFO     Device TurboSight TBS 62x1 DVBT/T2 frontend (/dev/dvb/adapter3/frontend0) capabilities:
INFO          CAN_FEC_1_2
INFO          CAN_FEC_2_3
INFO          CAN_FEC_3_4
INFO          CAN_FEC_4_5
INFO          CAN_FEC_5_6
INFO          CAN_FEC_7_8
INFO          CAN_FEC_AUTO
INFO          CAN_GUARD_INTERVAL_AUTO
INFO          CAN_HIERARCHY_AUTO
INFO          CAN_INVERSION_AUTO
INFO          CAN_QAM_16
INFO          CAN_QAM_32
INFO          CAN_QAM_64
INFO          CAN_QAM_128
INFO          CAN_QAM_256
INFO          CAN_QAM_AUTO
INFO          CAN_QPSK
INFO          CAN_RECOVER
INFO          CAN_TRANSMISSION_MODE_AUTO
INFO     DVB API Version 5.3, Current v5 delivery system: DVBT
INFO     Supported delivery system:
INFO         [DVBT]
INFO     Warning: new delivery systems like ISDB-T, ISDB-S, DMB-TH, DSS, ATSC-MH will be miss-detected by a DVBv5.4 or earlier API call
INFO     Scanning frequency #1 546000000
INFO     FREQUENCY = 546000000
INFO     MODULATION = QAM/64
INFO     BANDWIDTH_HZ = 8000000
INFO     INVERSION = AUTO
INFO     CODE_RATE_HP = NONE
INFO     CODE_RATE_LP = NONE
INFO     GUARD_INTERVAL = 1/32
INFO     TRANSMISSION_MODE = 8K
INFO     HIERARCHY = NONE
INFO     DELIVERY_SYSTEM = DVBT
DEBUG    Stats for STATUS = 31
DEBUG    Stats for STATUS = 31
DEBUG    Stats for STATUS = 31
DEBUG    Stats for POST BER = 1
Lock   (0x1f) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
.
.
.
.
.
PID 0x0011, TableID 0x42 ID=0x03fd, version 2, INFO     42 f1 9c 03 fd c5 00 00  22 f1 ff 03 66 fc 80 2a   B......."...f..*
INFO     48 28 01 14 05 53 76 65  72 69 67 65 73 20 54 65   H(...Sveriges Te
INFO     6c 65 76 69 73 69 6f 6e  11 42 61 72 6e 6b 61 6e   levision.Barnkan
INFO     61 6c 65 6e 2f 53 56 54  32 34 04 d8 fc 80 28 48   alen/SVT24....(H
INFO     26 01 14 05 53 76 65 72  69 67 65 73 20 54 65 6c   &...Sveriges Tel
INFO     65 76 69 73 69 6f 6e 0f  4b 75 6e 73 6b 61 70 73   evision.Kunskaps
INFO     6b 61 6e 61 6c 65 6e 05  00 fc 80 26 48 24 01 14   kanalen....&H$..
INFO     05 53 76 65 72 69 67 65  73 20 54 65 6c 65 76 69   .Sveriges Televi
INFO     73 69 6f 6e 0d 05 53 56  54 31 20 54 61 6c 20 54   sion..SVT1 Tal T
INFO     78 74 05 0a fc 80 26 48  24 01 14 05 53 76 65 72   xt....&H$...Sver
INFO     69 67 65 73 20 54 65 6c  65 76 69 73 69 6f 6e 0d   iges Television.
INFO     05 53 56 54 32 20 54 61  6c 20 54 78 74 15 ae fc   .SVT2 Tal Txt...
INFO     80 23 48 21 01 14 05 53  76 65 72 69 67 65 73 20   .#H!...Sveriges
INFO     54 65 6c 65 76 69 73 69  6f 6e 0a 05 53 56 54 32   Television..SVT2
INFO     20 56 e4 73 74 15 b8 fc  80 26 48 24 01 14 05 53    V.st....&H$...S
INFO     76 65 72 69 67 65 73 20  54 65 6c 65 76 69 73 69   veriges Televisi
INFO     6f 6e 0d 05 53 56 54 32  20 48 61 6c 6c 61 6e 64   on..SVT2 Halland
INFO     16 bc fc 80 23 48 21 01  14 05 53 76 65 72 69 67   ....#H!...Sverig
INFO     65 73 20 54 65 6c 65 76  69 73 69 6f 6e 0a 05 53   es Television..S
INFO     56 54 31 20 56 e4 73 74  16 c6 fc 80 26 48 24 01   VT1 V.st....&H$.
INFO     14 05 53 76 65 72 69 67  65 73 20 54 65 6c 65 76   ..Sveriges Telev
INFO     69 73 69 6f 6e 0d 05 53  56 54 31 20 48 61 6c 6c   ision..SVT1 Hall
INFO     61 6e 64 ff fe fc 80 33  5f 04 00 00 00 14 f1 03   and....3_.......
INFO     00 00 01 48 26 0c 13 05  42 6f 78 65 72 20 54 56   ...H&...Boxer TV
INFO     20 41 63 63 65 73 73 20  41 42 10 05 42 6f 78 65    Access AB..Boxe
INFO     72 20 4e 61 76 69 67 61  74 6f 72 ef 57 95 11      r Navigator.W..
   section_length = 412 section 0, last section 0
Service #0 ID 0x0366, running 4, scrambled 0
Descriptors table len 42
service_descriptor (0x48), len 40
   01 14 05 53 76 65 72 69 67 65 73 20 54 65 6c 65
   76 69 73 69 6f 6e 11 42 61 72 6e 6b 61 6e 61 6c
   65 6e 2f 53 56 54 32 34
Segmentation fault


If I remove MUX 1 in conf file:

Code: Select all

[email protected]:~$ dvbv5-scan -a 3 -v dvb-t2
using demux '/dev/dvb/adapter3/demux0'
INFO     Device TurboSight TBS 62x1 DVBT/T2 frontend (/dev/dvb/adapter3/frontend0) capabilities:
INFO          CAN_FEC_1_2
INFO          CAN_FEC_2_3
INFO          CAN_FEC_3_4
INFO          CAN_FEC_4_5
INFO          CAN_FEC_5_6
INFO          CAN_FEC_7_8
INFO          CAN_FEC_AUTO
INFO          CAN_GUARD_INTERVAL_AUTO
INFO          CAN_HIERARCHY_AUTO
INFO          CAN_INVERSION_AUTO
INFO          CAN_QAM_16
INFO          CAN_QAM_32
INFO          CAN_QAM_64
INFO          CAN_QAM_128
INFO          CAN_QAM_256
INFO          CAN_QAM_AUTO
INFO          CAN_QPSK
INFO          CAN_RECOVER
INFO          CAN_TRANSMISSION_MODE_AUTO
INFO     DVB API Version 5.3, Current v5 delivery system: DVBT
INFO     Supported delivery system:
INFO         [DVBT]
INFO     Warning: new delivery systems like ISDB-T, ISDB-S, DMB-TH, DSS, ATSC-MH will be miss-detected by a DVBv5.4 or earlier API call
INFO     Scanning frequency #1 570000000
INFO     FREQUENCY = 570000000
INFO     MODULATION = QAM/256
INFO     BANDWIDTH_HZ = 8000000
INFO     INVERSION = AUTO
INFO     CODE_RATE_HP = NONE
INFO     CODE_RATE_LP = NONE
INFO     GUARD_INTERVAL = 1/32
INFO     TRANSMISSION_MODE = 32K
INFO     HIERARCHY = NONE
INFO     DELIVERY_SYSTEM = DVBT
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 11
DEBUG    Stats for STATUS = 11
DEBUG    Stats for POST BER = 1
Sync   (0x0b) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
.
.
.
.
.
Sync   (0x0b) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 11
DEBUG    Stats for STATUS = 11
DEBUG    Stats for POST BER = 1
Sync   (0x0b) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 11
DEBUG    Stats for STATUS = 11
DEBUG    Stats for POST BER = 1
Sync   (0x0b) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 11
DEBUG    Stats for STATUS = 11
DEBUG    Stats for POST BER = 1
Sync   (0x0b) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 11
DEBUG    Stats for STATUS = 11
DEBUG    Stats for POST BER = 1
Sync   (0x0b) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 0
DEBUG    Stats for STATUS = 0
DEBUG    Stats for POST BER = 1
       (0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
DEBUG    Stats for STATUS = 11
DEBUG    Stats for STATUS = 11
DEBUG    Stats for POST BER = 1
Sync   (0x0b) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1

And no info about services. And the segmentation fault for MUX 1 seems to be rather strange.

From dmesg
[ 9383.346489] dvbv5-scan[1196]: segfault at 1f1040d ip 00007f92f3891767 sp 00007fff1c1f7cc0 error 4 in libc-2.19.so[7f92f3811000+1bb000]

[BeMax]

Ok, the binaries for dvbv5-scan were old (v1.0.1) so compiled new ones. V 1.7.0. But still problems with T2.

[email protected]:~$ ./dvbv5-scan -a 3 dvb.conf
Cannot calc frequency shift. Either bandwidth/symbol-rate is unavailable (yet).
Scanning frequency #1 546000000
Lock (0x1f) Signal= 99.95% C/N= 99.95% UCB= 65500 postBER= 0
Service Barnkanalen/SVT24, provider Sveriges Television: digital television
Service Kunskapskanalen, provider Sveriges Television: digital television
Service SVT1 Tal Txt, provider Sveriges Television: digital television
Service SVT2 Tal Txt, provider Sveriges Television: digital television
Service SVT2 Väst, provider Sveriges Television: digital television
Service SVT2 Halland, provider Sveriges Television: digital television
Service SVT1 Väst, provider Sveriges Television: digital television
Service SVT1 Halland, provider Sveriges Television: digital television
Service Boxer Navigator, provider Boxer TV Access AB: data broadcast
Scanning frequency #2 570000000
ERROR command STREAM_ID (42) not found during store
(0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1
[email protected]:~$ ./dvbv5-scan --version
dvbv5-scan version 1.7.0




It seems that the card is not set in T2 mode !?
FREQUENCY = 570000000
MODULATION = QAM/256
BANDWIDTH_HZ = 8000000
INVERSION = AUTO
CODE_RATE_HP = AUTO
CODE_RATE_LP = AUTO
GUARD_INTERVAL = AUTO
TRANSMISSION_MODE = 32k
HIERARCHY = AUTO
DELIVERY_SYSTEM = DVBT
(0x00) Signal= 99.95% C/N= 0.00% UCB= 0 postBER= 1

[updatelee]

Your config file clearly states dvbt. I'm not surprised it's not finding dvbt2

UDL

[BeMax]

Ehh. How to do the config file !? I though I could specify delivery system for every MUX !?


[MUX1]
DELIVERY_SYSTEM = DVBT
FREQUENCY = 546000000
BANDWIDTH_HZ = 8000000
MODULATION = QAM/64
TRANSMISSION_MODE = 8K

[MUX6]
DELIVERY_SYSTEM = DVBT2
FREQUENCY = 570000000
BANDWIDTH_HZ = 8000000
MODULATION = QAM/256
TRANSMISSION_MODE = 32K

[updatelee]

You should be able to. I don't use that app so I don't know. Try only putting dvbt2 tp into the config and see what happens

UDL

[BeMax]

Ok, Mux1 is "T", Mux6 is "T2" thats for sure. With the following config file:

[MUX1]
DELIVERY_SYSTEM = DVBT2
FREQUENCY = 546000000
BANDWIDTH_HZ = 8000000
MODULATION = QAM/64
TRANSMISSION_MODE = Auto

[MUX6]
DELIVERY_SYSTEM = DVBT2
FREQUENCY = 570000000
BANDWIDTH_HZ = 8000000
MODULATION = QAM/256
TRANSMISSION_MODE = Auto

The result:

[email protected]:~$ ./dvbv5-scan -a 3 dvb.conf_T2
Cannot calc frequency shift. Either bandwidth/symbol-rate is unavailable (yet).
Scanning frequency #1 546000000
ERROR command STREAM_ID (42) not found during store
Lock (0x1f) Signal= 99.95% C/N= 35.98% UCB= 23580 postBER= 1039
Service Barnkanalen/SVT24, provider Sveriges Television: digital television
Service Kunskapskanalen, provider Sveriges Television: digital television
Service SVT1 Tal Txt, provider Sveriges Television: digital television
Service SVT2 Tal Txt, provider Sveriges Television: digital television
Service SVT2 Väst, provider Sveriges Television: digital television
Service SVT2 Halland, provider Sveriges Television: digital television
Service SVT1 Väst, provider Sveriges Television: digital television
Service SVT1 Halland, provider Sveriges Television: digital television
Service Boxer Navigator, provider Boxer TV Access AB: data broadcast
Scanning frequency #2 570000000
ERROR command STREAM_ID (42) not found during store
Sync (0x0b) Signal= 97.95% C/N= 0.00% UCB= 0 postBER= 1
[email protected]:~$

My conclusion T is set even if T2 is specified.

So is it the hardware (brand new TBS6285) or is it the drivers or something that I do wrong ? I had a TBS6284 working in this machine before, T and T2. This board is now maybe broken and I dont want to put it in again with the risk to destroy the motherboard. I have another old motherboard where I can test my 6284 card again but I need to fix PSU etc etc..

DVBV5-scan and Tvheadend don't manage to set it in T2 mode, other suggestions ?

[updatelee]

looking at the source code for dvbv5-scan it doesnt look like it has dvb-t2 support, even though it says it does

you could try this patch if you want

Code: Select all

diff --git a/utils/dvb/dvbv5-scan.c b/utils/dvb/dvbv5-scan.c
index 1bd1bcf..7ee1b06 100644
--- a/utils/dvb/dvbv5-scan.c
+++ b/utils/dvb/dvbv5-scan.c
@@ -224,6 +224,7 @@ static int run_scan(struct arguments *args,
 
        /* This is used only when reading old formats */
        switch (parms->current_sys) {
+       case SYS_DVBT2:
        case SYS_DVBT:
        case SYS_DVBS:
        case SYS_DVBC_ANNEX_A:


I dont use this software or have dvb-t/t2 to test.

UDL

[BeMax]

Ok, I think it supports T2. I manage to lock on another mux, much more distant also transmitting in T2 mode . All my other cards and sticks don't have any issue to use the closest one at 570 MHz but this card seems to have some problems. I will check tomorrow in more detail. I have checked before to add an attenuator (if there is an overload issue) but need to investigate more. Thanks anyway for your help and support. BTW found this informative page.
http://blog.palosaari.fi/2014/09/linux- ... blems.html


[email protected]:~$ ./dvbv5-scan -a 4 dvb-t2
Cannot calc frequency shift. Either bandwidth/symbol-rate is unavailable (yet).
Scanning frequency #1 594000000
ERROR command STREAM_ID (42) not found during store
Lock (0x1f) Signal= 45.98% C/N= 57.97% UCB= 37990 postBER= 0
Service SVT1 HD Väst, provider Sveriges Television: reserved
Service SVT2 HD Väst, provider Sveriges Television: reserved
Service TV3 HD BORÃS, provider Viasat AB: reserved
Service Kanal 5 HD, provider SBS Broadcasting Networks Ltd: reserved
Service Humax BXR-HD ver 1.00.05, provider Humax BXR-HD: data broadcast
Service Sagemcom RT90-160 HD Boxer, provider Sagem: data broadcast
Service Sagemcom DTIW77, provider Boxer TV Access AB: data broadcast
Service TV4 HD Borås, provider TV4 AB: reserved