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post #1 of 11 (permalink) Old 2017-02-02, 12:28 PM Thread Starter
 
Join Date: Apr 2013
Location: Brandon MB
Posts: 80
BVN Changes

BVN is running a crawl across the top of the picture warning that users must input new frequency and symbol rate settings into their receivers before Feb 10.
the new settings are: 12076MHz, Horizontal Polarity. Symbol Rate: 5787, FEC 3/4. There is one less TV channel that scans-in, but I can't remember at the moment which one is missing.

My parents' Viewsat has an error when I scan with NIT turned on, that adds a transponder "1208" MHz, "5787"SR.
I'm guessing that the uplink provider has a typo in their encoder settings. My own Openbox S9 didn't add any transponders doing a NIT search.
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post #2 of 11 (permalink) Old 2017-02-06, 11:49 AM Thread Starter
 
Join Date: Apr 2013
Location: Brandon MB
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Is anyone in Canada having GOOD quality these last few weeks on either the new frequency or the old one??
My contacts are struggling to get reliable reception using both new and old.
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post #3 of 11 (permalink) Old 2017-02-11, 12:01 PM Thread Starter
 
Join Date: Apr 2013
Location: Brandon MB
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Here's the aftermath: it looks like the new smaller bandwidth signal shows higher power than the old wider one. I hope this will have a good effect on reliability!
pictures taken in cloudy conditions: 49.5N/100'W
BEFORE




AFTER
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post #4 of 11 (permalink) Old 2017-02-11, 10:57 PM
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For me, it was a bit lower snr after the change than it was last summer.
Lower by ~ a dB.

DB8E/VHF Yagi rotor FM Bandstop ap-8700 preamp 8way split LG lcd.
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post #5 of 11 (permalink) Old 2017-02-15, 06:49 PM
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How are you making out now sparky?

It seems quite a bit stronger today than it did immediately after the frequency change.
Here, it is now 10 dB SNR. 2 dB better than last August, and at least ~ 3 dB better than what I saw just after the frequency change.
Clear sky last summer, and overcast skies both times I checked this winter.

Code:
Tuned specs: 

System:     DVB-S 5 
Frequency:  12076 H 5787 
22khz:      OFF 
Modulation: QPSK 0 
FEC:        3/4 3 
Inversion:  OFF 0 
Rolloff:    35 0 
Pilot:      OFF 0 
MIS:        -1 
FRAME_LEN:  LONG 0 
Bandwidth:  7.8125 MHz 
Data Rate:  7.9997 Mbps 
CN Failure: 5.5 dB 

  status Locked | signal -45.0 dBm | snr 10.1 dB | ber 0 | FE_HAS_LOCK  
  status Locked | signal -45.0 dBm | snr 10.2 dB | ber 0 | FE_HAS_LOCK

DB8E/VHF Yagi rotor FM Bandstop ap-8700 preamp 8way split LG lcd.
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post #6 of 11 (permalink) Old 2017-02-17, 04:23 PM Thread Starter
 
Join Date: Apr 2013
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it's good and solid again on my remaining clients. I'm not able to get stats like yours from my receivers but my Openbox S9 seems happy showing about 65% quality on my 36" dish, and Viewsat Extreme at my parents' showing about 36-55% on their 4 foot dish. these readings are ever slightly better than last year
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post #7 of 11 (permalink) Old 2017-02-17, 06:34 PM
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right on, I have an S9 also...the S9 maxes out at 85% quality no matter what the FEC is.
When I get a chance I will compare my S9 reading with my tuner card's (above is from Prof 7500) snr reading for you on this transponder. Once with it peaked, and again while at or near the minimum 5.5 dB snr. That way you'll at least have something that's somewhat meaningful to compare looking at your S9.

DB8E/VHF Yagi rotor FM Bandstop ap-8700 preamp 8way split LG lcd.
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post #8 of 11 (permalink) Old 2017-02-17, 08:03 PM
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Result of my experiment with the S9 Quality vs the Prof 7500
on this transponder. likely only valid to assume this comparison
on this DVB-S QPSK FEC 3/4.
Would expect other modcodes to behave differently of course.
And DVB-S2 signals generally will fall off much more quickly than DVB-S
when approaching the theoretical minimum.

Code:
prof 7500     S9
10.1 dB        70%
9.0 dB        67%
7.9 dB         60%
6.8 dB        56%
5.7 dB         46% signs of BER on Prof, still a stable picture on both
5.3 dB        42% signs of BER on Prof, still a stable picture on both
4.9 dB        39% signs of BER on Prof, still a stable picture on both
4.4.dB        35% Unwatchable on Prof, S9 still hangin in there.

DB8E/VHF Yagi rotor FM Bandstop ap-8700 preamp 8way split LG lcd.
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post #9 of 11 (permalink) Old 2017-02-19, 12:41 PM Thread Starter
 
Join Date: Apr 2013
Location: Brandon MB
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cool, thanks. I really wish there was a way to get signal data from the STB's on screen.
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post #10 of 11 (permalink) Old 2017-02-20, 06:35 PM
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I have only seen screen shots from one or two people with VU Solo STBs that have some SNR dB in them. There may be others, but that's the only one that I have seen.
I think it's a linux box running Enigma2 SW.
I use PC based cards for that under linux.

DB8E/VHF Yagi rotor FM Bandstop ap-8700 preamp 8way split LG lcd.
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post #11 of 11 (permalink) Old 2017-02-26, 11:00 PM Thread Starter
 
Join Date: Apr 2013
Location: Brandon MB
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I'd buy a STB if it was advertised as being able to display SNR, or spectrum scan.

My spectrum scan results look far better than those at SatSignature dot com.
They tell me their vertical polarity on 113W needs service, but their Horizontal on 113W is far lower than I show using only my 36 inch motorized dish and junkbox lnbf, and theirs seems to vary a lot day-to-day.
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