Unicable LNB and inline amplifier.

[goral]

It is right there on the infobar. One is QPSK. The other is 8PSK.

No, no I asking about this:

11913 H on 19.2E requires an SNR greater than 6.4 dB for the picture to show.
11158 V on 13.0E requires an SNR greater than 7.9 dB.

How do you know that minimum for 11913 transponder must be greater then 6.4 dB?

[goral]

a question for goral - what are the ber figures during good and bad weather for the problem satellites/transponders.

ber: 1.0e-09

[Joe_90]

ACG at 19e 93%
ACG at 13e 89%



I know dB is logarithmic, but [%] is linear.

AGC is a function of the tuner in your receiver and is likely to be specific to the tuner design and just relates to the signal level received and is probably not a linear value. Better SNR (and possibly BER if your tuner shows it) is what you're aiming for. Bigger dish and better pointing are possible solutions. Where are you located? Is it possible that you are on the margins of reception from 13E? I'll check my own reception on 13E here at 6W. My dish is 80cm, though.


EDIT - I have scanned 13E on my 80cm dish. On the transponders you referenced, here are my values. I'm at 53N and 6W and the sky is clear:

10911V - SNR 13dB / 64%        AGC is 41%
11258H - SNR 10.5dB / 52%      AGC is 42%
12284H - SNR 12dB /60%         AGC is 45%

I think the AGC figures are pretty meaningless as they are just what's reported by the tuner to enigma. BER in all cases is reading zero. I've never seen a BER figure other than zero reported on my AX61HD or on my mutant HD51.

[Huevos]

No, no I asking about this:


How do you know that minimum for 11913 transponder must be greater then 6.4 dB?

Shannon's Information Theorum.

Basically if you want to send more data you need a better SNR. In the case of the 13.0E transponder the data rate is higher so requires better SNR.

[goral]

AGC is a function of the tuner in your receiver and is likely to be specific to the tuner design and just relates to the signal level received and is probably not a linear value. Better SNR (and possibly BER if your tuner shows it) is what you're aiming for. Bigger dish and better pointing are possible solutions. Where are you located? Is it possible that you are on the margins of reception from 13E? I'll check my own reception on 13E here at 6W. My dish is 80cm, though.


EDIT - I have scanned 13E on my 80cm dish. On the transponders you referenced, here are my values. I'm at 53N and 6W and the sky is clear:

10911V - SNR 13dB / 64%        AGC is 41%
11258H - SNR 10.5dB / 52%      AGC is 42%
12284H - SNR 12dB /60%         AGC is 45%

I think the AGC figures are pretty meaningless as they are just what's reported by the tuner to enigma. BER in all cases is reading zero. I've never seen a BER figure other than zero reported on my AX61HD or on my mutant HD51.

I'm at 58.6N 3E

10911V - SNR 10.8 dB / 68%        AGC 92%
11258H - SNR 8.6 dB / 52%          AGC 92%
12284H - SNR 11.30 dB/ 70%       AGC 93%

Using software meter from enigma2 image.
When rein will stop, I will check data on LNB using WS-6933
All in cloudy sky with rain.
Dosh 90 cm

[Joe_90]

If you are in Norway, then the signal footprint will have dropped off somewhat, although the Lyngsat maps show good coverage in your direction.