logging SNR

abu_ilya · Jul 31st 2008

I would like to log the SNR on a certain satellite channel. Does anyone here how to do that?
(without using the remote control and writing it down of course)

abu_ilya

abu_ilya · Aug 5th 2008

Quote

Originally posted by abu_ilya
I would like to log the SNR on a certain satellite channel. Does anyone here how to do that?
(without using the remote control and writing it down of course)

abu_ilya

I figured it out (even though it is not as elegant, it works)

wget -O - --user=root --password=dreambox http://192.168.1.3/xml/streaminfo |grep snr |cut -d '>' --fields 2 |cut -d '%' --fields 1

now I can use this command in a script to log the snr and make a nice graph of it

regards,
abu_ilya

1184jap · Aug 6th 2008

@ abu_ilya
It may seem like a stupid question
But is 192.168.1.3 the IP addr of you dreambox or PC.

idreamsat · Aug 6th 2008

Quote

Originally posted by 1184jap
@ abu_ilya
It may seem like a stupid question
But is 192.168.1.3 the IP addr of you dreambox or PC.

dreambox

pastupam · Aug 9th 2008

Quote

Original von abu_ilya
wget -O - --user=root --password=dreambox http://192.168.1.3/xml/streaminfo |grep snr |cut -d '>' --fields 2 |cut -d '%' --fields 1

Try something like this:

echo 'SNR, AGC, BER:' && wget -q -O - http://192.168.0.199/satFinder?|grep '<td align="center">'|sed -e 's/.*<td align="center">//' -e 's/<.*$//'

on your Dream:
root@dm600pvr:/> echo 'SNR, AGC, BER:' ...

Pzdr.J.P.

pastupam · Aug 12th 2008

Quote

Original von pastupam
echo 'SNR, AGC, BER:' && wget -q -O - http://192.168.0.199/satFinder?|grep '<td align="center">'|sed -e 's/.*<td align="center">//' -e 's/<.*$//'

And now draft solution:

Bash

#!/bin/sh


i=1
echo 'Time;SNR;AGC;BER'>ala2.csv
echo '' > ala0
echo '' > ala


while [ $i -le 20 ]
do
  uptime | sed '/ /s///g'|sed 's/up.*/;/' >> ala0 
  wget -q -O - http://192.168.0.199/satFinder?|grep '<td align="center">'|sed -e 's/.*<td align="center">//' -e 's/<.*$/;/' >> ala0


  cat ala0 | tr -d '\n' >> ala
  echo '' >> ala
  i=`expr $i + 1`
  echo ''> ala0
  sleep 5s
done


sed -e 's/%//g' -e 's/;$//g' ala >> ala2.csv
more ala2.csv

Display More

As the result you will get the Excel file "ala2.csv" with the following columns:
"Time ---- SNR ---- AGC ---- BER"

Pzdr.J.P.

pastupam · Aug 23rd 2008

Quote

Original von pastupam
And now draft solution ...

Now, last but not least, I hope version:

Bash

#!/bin/sh


# get_snr ver. 1.0


# how many readings, eg.: nr_p=500 ; no spaces
nr_p=5


# next reading - pause, in sec, eg.: pau_se=5 ==> sleep 5s
# so, total scaninng time = nr_p * pau_se
pau_se=5


# put your DreamBox IP here
# !!! do not put spaces: "IP_DM = 192.168.0.199" !!!
IP_DM=192.168.0.199


# ----------------------------------------------------------
# !!!! write your USER NAME & PASSWORD here & no spaces !!!!
# ----------------------------------------------------------
use_er=root
pass_d=dreambox


# -------------------------- START -------------------------
echo '' > tmp_tmp
echo '' > tmp_all


# print actual date
echo ";;"`date` > snr_ber.csv


# print Transponder info: Name, Sat., Freq., FEC
echo >> snr_ber.csv
echo -n ';Name :;' >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<name>'|sed -e 's/.*<name>//' -e 's/<.*$//' >> snr_ber.csv
echo -n ';Sat. :;' >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<satellite>'|sed -e 's/.*<satellite>//' -e 's/<.*$//' >> snr_ber.csv
echo -n ";Freq. :;'" >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<frequency>'|sed -e 's/.*<frequency>//' -e 's/<.*$//' >> snr_ber.csv
echo -n ';Pol. :;' >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<polarisation>'|sed -e 's/.*<polarisation>//' -e 's/<.*$//' >> snr_ber.csv
echo -n ";FEC :;'" >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<fec>'|sed -e 's/.*<fec>//' -e 's/<.*$//' >> snr_ber.csv
echo >> snr_ber.csv


echo -n 'Nr;Time;SNR;AGC;BER;sync;lock' >> snr_ber.csv


i=1
wyn=''
wyn1=''


while [ "$i" -le "$nr_p" ]
do
   # print nr=i ; 1 , 2 , 3 ...
   echo "$i;" >> tmp_tmp


   # display on TV screen: # = i ; all = nr_p
   (wget -q -O - "http://$use_er:$pass_d@"$IP_DM"/cgi-bin/xmessage?timeout=1&caption=%20%20#%20/%20ALL&body=$i%20/%20$nr_p") > /dev/null
   
   # print actual time: 13:24:20
   uptime | sed '/ /s///g'|sed 's/up.*/;/' >> tmp_tmp 


   # print SNR , AGC , BER: 81;84;1735;
   wget -q -O - http://$use_er:$pass_d@"$IP_DM"/satFinder?|grep '<td align="center">'|sed -e 's/.*<td align="center">//' -e 's/<.*$/;/' >> tmp_tmp


   # print sync: yes - 1 , no - 0
   wyn=`wget -q -O - http://$use_er:$pass_d@"$IP_DM"/satFinder?|grep '<input name="sync" type="checkbox" value="on" disabled checked>'|sed -e 's/.*<input name="sync" type="checkbox" value="on" disabled checked>&nbsp;//' -e 's/<.*$/;/'`
   wyn1='0'
   if [ "$wyn" = SYNC ];  then wyn1='1'; fi
   echo $wyn1';' >> tmp_tmp 


   # print lock: yes - 1 , no - 0
   wyn=`wget -q -O - http://$use_er:$pass_d@"$IP_DM"/satFinder?|grep '<input name="lock" type="checkbox" value="on" disabled checked>'|sed -e 's/.*<input name="lock" type="checkbox" value="on" disabled checked>&nbsp;//' -e 's/<.*$/;/'`
   wyn1='0'
   if [ "$wyn" = LOCK ];  then wyn1='1'; fi
   echo $wyn1';' >> tmp_tmp


   # join, connect lines - delete line ending
   cat tmp_tmp | tr -d '\n' >> tmp_all


   echo '' >  tmp_tmp
   echo '' >> tmp_all


   # display "." - i'am alive
   echo -n '.'


   i=`expr $i + 1`
   sleep "$pau_se"s
done
echo


# delete ";" at the end of lines
sed -e 's/%//g' -e 's/;$//g' tmp_all >> snr_ber.csv


# remove temporary files
rm tmp_all
rm tmp_tmp


# display the file
more snr_ber.csv


# Pzdr.J.P.
exit 0

Display More

And the result:

Code

;;Sat Aug 23 22:09:44 CEST 2008


;Name :;BBC R4 FM
;Sat. :;Eurobird1/Astra2A/2B/2C/2D (28.2E)
;Freq. :;'11951
;Pol. :;Horizontal
;FEC :;'2/3


Nr;Time;SNR;AGC;BER;sync;lock
1;22:09:45;85;85;0;1;1
2;22:09:51;85;85;0;1;1
3;22:09:57;85;85;0;1;1
4;22:10:02;85;85;0;1;1
5;22:10:08;85;85;0;1;1

Display More

Pzdr. J.P.

choco · Aug 24th 2008

What did I do wrong?
The info part in csv file did not show up:-

Nr;Time;SNR;AGC;BER;sync;lock
1;22:09:45;85;85;0;1;1
2;22:09:51;85;85;0;1;1
3;22:09:57;85;85;0;1;1
4;22:10:02;85;85;0;1;1
5;22:10:08;85;85;0;1;1

pastupam · Aug 24th 2008

Quote

Original von choco
What did I do wrong?
The info part in csv file did not show up:-

Nr;Time;SNR;AGC;BER;sync;lock
1;22:09:45;85;85;0;1;1

try this command from the shell:

Code

root@dm600pvr:~> wget -q -O - http://root:dreambox@192.168.0.199/xml/streaminfo

or from your browser:

Code

http://192.168.0.199/xml/streaminfo

and tell if it is working.
Of course type your Dream IP, and your password.

Pzdr.J.P.

choco · Aug 24th 2008

I got the same results as before...no info. Using DM7000. Result attached.

pastupam · Aug 24th 2008

Quote

Original von choco
I got the same results as before...no info. Using DM7000. Result attached.

So, I see you don't have the "satFinder" part.

In this case, try command:

Code

wget -q -O - http://root:root@192.168.0.199/satFinder?

If it is working, please attach the file "test_html.txt", after execution of this command:

Code

wget -q -O - http://root:root@192.168.0.199/satFinder?>test_html.txt

Optionally, you can use a browser, open the link:

Code

http://192.168.0.199/satFinder?

and then attach source code of this page.

The next version I am testing at the moment, will be more universal and much more precise.

Pzdr. J.P.

choco · Aug 25th 2008

File attached.

pastupam · Aug 25th 2008

Strange!
On the first glimpse, the source of your "satFinder" page, seems to be exactly the same like mine.

And now sorry, simple but brutal question .
Have you changed lines 17, 18:

Code

# write your user name & password here
use_er=root
pass_d=root

on, for instance:

Code

use_er=root
pass_d=dreambox

???

Pzdr.J.P.

choco · Aug 26th 2008

Without MY Dreambox IP and password, it wouldn't have even logged anything. I think I'll wait for the next version.

pastupam · Aug 27th 2008

Quote

Original von chocoI think I'll wait for the next version.

And what about this:

Bash

#!/bin/sh


# snr_snoop ver. 2.0 , by pastupam
# fully tested on DB 600 pvr
# ---------------------------------
# how many reading points you want
# eg.: nr_p=500 ; no spaces
# nr_p=3
nr_p=5


# next reading - pause, in sec, eg.: pau_se=5 ==> sleep 5s
# so, total scaninng time = nr_p * pau_se
# pau_se=5
pau_se=5


# put your DreamBox IP here
# !!! do not put spaces: "IP_DM = 192.168.0.199" !!!
IP_DM=192.168.0.199


# ----------------------------------------------------------
# !!!! write your USER NAME & PASSWORD here & no spaces !!!!
# ----------------------------------------------------------
use_er=root
pass_d=root


# -------------------------- START  -------------------------
# print actual date
echo ";;"`date` > snr_ber.csv


# print Transponder info: Name, Sat., Freq., FEC
echo >> snr_ber.csv
echo -n ';Name :;' >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<name>'|sed -e 's/.*<name>//' -e 's/<.*$//' >> snr_ber.csv
echo -n ';Sat. :;' >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<satellite>'|sed -e 's/.*<satellite>//' -e 's/<.*$//' >> snr_ber.csv
echo -n ";Freq. :;'" >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<frequency>'|sed -e 's/.*<frequency>//' -e 's/<.*$//' >> snr_ber.csv
echo -n ';Pol. :;' >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<polarisation>'|sed -e 's/.*<polarisation>//' -e 's/<.*$//' >> snr_ber.csv
echo -n ";FEC :;'" >> snr_ber.csv
wget -q -O - http://$use_er:$pass_d@"$IP_DM"/xml/streaminfo|grep '<fec>'|sed -e 's/.*<fec>//' -e 's/<.*$//' >> snr_ber.csv
echo >> snr_ber.csv


# print SatFind "csv" header
echo 'Nr;Time;AGC;AGC%;SNR;SNR%;snr100*dB;BER;status' >> snr_ber.csv


i=1
while [ "$i" -le "$nr_p" ]
do
   # print nr=i ; 1 , 2 , 3 ...
   echo "$i;" > tmp_tmp


   # print actual time: 13:24:20
   uptime | sed '/ /s///g'|sed 's/up.*/;/' >> tmp_tmp
   
   # Sig: 55686  SNR: 55446  BER: 0  UBLK: 0  Stat: 0x7b [SIG LOCK ]
   # get SIGNAL main info, using DVBSNOOP -> /usr/bin/dvbsnoop -h|more
   xx=`dvbsnoop -pd 5 -hideproginfo  -s signal -n 1|grep Sig:`
   echo $xx > temp_x
   
   # print AGC = Sig: "55686"
   xx=`sed -e 's/^Sig: //' -e 's/ SNR.*$//' temp_x`
   x_all=$xx';'
   
   # normalize and print AGC [%]
   xx=$(($(($xx*100))/65535))
   x_all=$x_all$xx';'


   # print SNR = SNR: "55446"  
   xx=`sed -e 's/.*SNR: //' -e 's/ BER.*$//' temp_x` 
   x_all=$x_all$xx';'


   # normalize and print SNR [%]
   x=$(($(($xx*100))/65535))
   x_all=$x_all$x';'


   # normalize to dB and print { SNR [dB] * 100 }
   x=$(($(($xx*10-390750))/175 ))
   x_all=$x_all$x';'


   # print BER = BER: "0"  
   xx=`sed -e 's/.*BER: //' -e 's/ UBLK.*$//' temp_x` 
   x_all=$x_all$xx';'


   # print STATUS of the signal: "0x7b [SIG LOCK ]"
   xx=`sed -e 's/.*Stat: //' temp_x`
   x_all=$x_all$xx


   # processed SIGNAL line: $"agc;agc%;snr;snr%;snr%dB;ber;stat" 
   echo $x_all >> tmp_tmp
   
   # join, connect lines - delete line ending
   cat tmp_tmp | tr -d '\n' >> snr_ber.csv
   echo >> snr_ber.csv


   # display "." - i'am alive, in one line
   echo -n '.'


   # display on TV screen: # = i ; all = nr_p
   # !!! if you want this option, delete # in next line !!!
   # (wget -q -O - "http://$use_er:$pass_d@"$IP_DM"/cgi-bin/xmessage?timeout=1&caption=%20%20#%20/%20ALL&body=$i%2/%20$nr_p") > /dev/null


   
   # increase counter; wait "$pau_se"s
   i=`expr $i + 1`
   sleep "$pau_se"s
done
# --------------------------  END  -------------------------
# remove temporary files
rm tmp_tmp
rm temp_x


# display the file
echo
more snr_ber.csv


# Pzdr.J.P.
exit 0

Display More

Results:

Code

root@dm600pvr:~> snr_snoop.sh
.....
;;Wed Aug 27 15:05:39 CEST 2008


;Name :;Classic FM
;Sat. :;Eurobird1/Astra2A/2B/2C/2D (28.2E)
;Freq. :;'12522
;Pol. :;Vertical
;FEC :;'2/3


Nr;Time;AGC;AGC%;SNR;SNR%;snr100*dB;BER;status
1;15:05:40;56961;86;55707;85;950;0;0x7b [SIG LOCK ]
2;15:05:45;56950;86;55788;85;955;0;0x7b [SIG LOCK ]
3;15:05:51;56952;86;55794;85;955;0;0x7b [SIG LOCK ]
4;15:05:56;56958;86;55725;85;951;0;0x7b [SIG LOCK ]
5;15:06:02;56950;86;55824;85;957;0;0x7b [SIG LOCK ]
root@dm600pvr:~>

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Pzdr.J.P.

choco · Aug 27th 2008

Tried this one on DM500 and DM7000.
This time there was no .csv file at all.
Maybe because it's not DM600?

pastupam · Aug 27th 2008

Quote

Original von choco: Tried this one on DM500 and DM7000.
This time there was no .csv file at all.

Impossible.
The first 45 lines are exactly the same, like in the previous script,
so you should have, at least, the some results like before.

Had you changed propeties of the scrip file:

Code

chmod 775 snr_snoop.sh

Quote

Maybe because it's not DM600?

Do not think so.

Pzdr.J.P.

choco · Aug 28th 2008

Well I tried several times but all in vain. Could not believe it myself. I sincerely hope that somebody else will try it and say OK. But on my DM7000 or DM500, it simply would not work. One last thing, if I put back your previous script, I get the same results as before. Strange but true.Tx.

logging SNR

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