17 replies to this topic

[marcosdjmix]

Good evening friends how are you

I have a problem with the new zgemma h5 AC atsc

When I want to scan a cable tp, he signals me but does not bring any channel does not scan anything

I have a cable operator in South America working with annex b

For example its frequency is 447 sr 5057 qam 64

What I see is that the menu in the zgemma does not give me the option to load the SR

FROM ALREADY THANK YOU VERY MUCH

Attached Files

•  803721826_109087.jpg   87.77KB   3 downloads

[athoik]

Hi,

We had several reports from American users from Terrestrial part of ATSC.

You are the first reporter for Cable part of ATSC.

The Symbol Rate is not included in the current implementation. Changes should be made to support symbol rate.

In the meanwhile, there is a command line utility in the feeds, wscan (or w_scan).

You can give a try with that utility and chech if it scans correctly?

[marcosdjmix]

Good morning thank you for your answer Question How do I install wscam in zgemma? From already thank you very much

Good morning thank you for your answer Question How do I install wscam in zgemma? From already thank you very much

[athoik]

Hi,


You need to use telnet commands.

# install

opkg update
opkg install wscan

# scan

w_scan  -f a -A 2

Use w_scan -H to get more help.

[marcosdjmix]

Good morning, How are you? Athoik.
 
Yesterday probe with the wscan and also gave signal but did not scan anything
 
What I see in the wscan are not thistles for example SR 5057, 5360
 
I do not think it has anything to do but I noticed it ajajja
 
I attach the photos
 
From already thank you very much

[marcosdjmix]

[marcosdjmix]

[marcosdjmix]

[athoik]

I was hoping that wscan would be able to scan ATSC/Annex B.

It works for ATSC/Terrestrial as far as i know.

Can you try again using the following command?

w_scan -fa -A2 -c US -X

[marcosdjmix]

Good afternoon, how are you

 

I did the test with the commands that I left you (w_scan -fa -A2 -c US -X)

 

And gave me the same result as the one again

 

What I do note is that wscan does not bring the symbol rate 5057 and 5360

 

I do not know if that has to do or not

 

I attach the images

 

From already thank you very much

 

 

 

 

[athoik]

Try to enable -e 1 parameter (or -S 14 or -S 15 although none is exacly 5057!)

w_scan -fa -A2 -c US -e 1

.................DVB-C...................
       -i N, --inversion N
               spectral inversion setting for cable TV
                       (0: off, 1: on, 2: auto [default])
       -Q N, --dvbc-modulation N
               set DVB-C modulation, see table:
                       0  = QAM64
                       1  = QAM256
                       2  = QAM128
               NOTE: for experienced users only!!
       -e N,--dvbc-extflags N
               extended scan flags (DVB-C only),
               Any combination of these flags:
               1 = use extended symbolrate list
                       enables scan of symbolrates
                       6111, 6250, 6790, 6811, 5900,
                       5000, 3450, 4000, 6950, 7000,
                       6952, 6956, 6956.5, 5217
               2 = extended QAM scan (enable QAM128)
                       recommended for Nethterlands and Finland
               NOTE: extended scan will be *slow*
       -S N, dvbc-symbolrate N
               set DVB-C symbol rate, see table:
                       0  = 6.9000 MSymbol/s
                       1  = 6.8750 MSymbol/s
                       2  = 6.9565 MSymbol/s
                       3  = 6.9560 MSymbol/s
                       4  = 6.9520 MSymbol/s
                       5  = 6.9500 MSymbol/s
                       6  = 6.7900 MSymbol/s
                       7  = 6.8110 MSymbol/s
                       8  = 6.2500 MSymbol/s
                       9  = 6.1110 MSymbol/s
                       10 = 6.0860 MSymbol/s
                       11 = 5.9000 MSymbol/s
                       12 = 5.4830 MSymbol/s
                       13 = 5.2170 MSymbol/s
                       14 = 5.1560 MSymbol/s
                       15 = 5.0000 MSymbol/s
                       16 = 4.0000 MSymbol/s
                       17 = 3.4500 MSymbol/s
               NOTE: for experienced users only!!

[marcosdjmix]

Creo que ahora se hizo algo diferente

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Creo que ahora se hizo algo diferente

[marcosdjmix]

 

 

[athoik]

Hi,

I send you PM with a modified test version for h5 with symbol rate 5057 (hardcoded)!

[athoik]

An issue was filled on Gihub in order not to loose it.

https://github.com/O...gma2/issues/976

For sure Enigma2 misses the Symbol Rate for ATSC ANNEX-B although during the tests with hardcoded "Symbol Rate" nothing good come up!?

diff --git a/lib/dvb/frontend.cpp b/lib/dvb/frontend.cpp
index 561fb81..f11b86c 100644
--- a/lib/dvb/frontend.cpp
+++ b/lib/dvb/frontend.cpp
@@ -2217,6 +2217,16 @@ void eDVBFrontend::setFrontend(bool recvEvents)
                                case eDVBFrontendParametersATSC::Modulation_VSB_16: p[cmdseq.num].u.data = VSB_16; break;
                        }
                        cmdseq.num++;
+
+                       if (parm.system == eDVBFrontendParametersATSC::System_DVB_C_ANNEX_B)
+                       {
+                               int tmp_sr = 5604;
+                               CFile::parseInt(&tmp_sr, "/tmp/symbol_rate");
+
+                               p[cmdseq.num].cmd = DTV_SYMBOL_RATE;
+                               p[cmdseq.num].u.data = tmp_sr * 1000; /* parm.symbol_rate; */
+                               cmdseq.num++;
+                       }
                }
                p[cmdseq.num].cmd = DTV_TUNE, cmdseq.num++;
                if (ioctl(m_fd, FE_SET_PROPERTY, &cmdseq) == -1)

The default value is 5604 (i seen that number several times in above picture).

In order to change to 5360 do the following:

echo 5360 > /tmp/symbol_rate

So it might be a driver issue, although strange that w_scan find something.

[ultra_signal]

I have a DVB-C Tuner Philips CU1216Mk3 tuner compatible with my dm8000 box openpli 6.2.  I didn't find the datasheet that supports dvbc annex b. this original dreambox philips tuner doesn't have hardware support for annex b?

[WanWizard]

Posting the same question multiple times doesn't get you an answer quicker. So please don't.

 

Also, don't hijack other topics, create your own if you have a new question to ask.

[ultra_signal]

Posting the same question multiple times doesn't get you an answer quicker. So please don't.

 

Also, don't hijack other topics, create your own if you have a new question to ask.

sorry, friend.