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SAORSAT on Lyngsat but how to convert the frequency??

swoofer · 2012-02-11 10:41:53

I checked Lyngsat com and lo and behold RTE saorsat is shown in all its glory but the frequency is 20185L so the question is how is this downconverted to a frequency I can input to my hd receiver. And how do we know lyngsat are showing the correct frequency. I got my ka band lnb and dying to give it a go. got this from…

11-02-2012 11:41am

#1

swoofer

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I checked Lyngsat com and lo and behold RTE saorsat is shown in all its glory but the frequency is 20185L so the question is how is this downconverted to a frequency I can input to my hd receiver. And how do we know lyngsat are showing the correct frequency. I got my ka band lnb and dying to give it a go. got this from another board

"SAORSAT Tp on Ka-Sat = 20185 MHz
Ka Band LNB LO = 18750 MHz
IF Frequency = 1435 MHz (20185 MHz - 18750 MHz)

Ku receiver frequency displayed = 11185 MHz (IF 1435 MHz + Ku Lo-Band LO 9750 MHz)
scan that frequency with SR 25000, FEC 1/2, QPSK, DVB-S2."

but saw another post that aopogee did and frequency was different! Is all this done to confuse us??

Is the above correct?

gbcullen

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Comments

#2 11-02-2012 12:14pm

Peter Rhea

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The LO in the Inverto LNB is 21.2 gHz, these are the correct settings afaia.

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#3 11-02-2012 12:16pm

Apogee

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GBCULLEN wrote: »

I checked Lyngsat com and lo and behold RTE saorsat is shown in all its glory but the frequency is 20185L so the question is how is this downconverted to a frequency I can input to my hd receiver. And how do we know lyngsat are showing the correct frequency. I got my ka band lnb and dying to give it a go. got this from another board

"SAORSAT Tp on Ka-Sat = 20185 MHz
Ka Band LNB LO = 18750 MHz
IF Frequency = 1435 MHz (20185 MHz - 18750 MHz)

Ku receiver frequency displayed = 11185 MHz (IF 1435 MHz + Ku Lo-Band LO 9750 MHz)
scan that frequency with SR 25000, FEC 1/2, QPSK, DVB-S2."

but saw another post that aopogee did and frequency was different!

Is the above correct?

gbcullen

Both are correct but are meant for different LNB/Fs with different local oscillators. The first calculation/frequency is for the Hughes LNBs that people were initially experimenting with, but is now more or less redundant.

The other frequency I posted (TP scan parameters are 10765MHz, SR 25000, Vertical, FEC 1/2, DVB-S2 QPSK) is the correct one for the Inverto LNBF sold by Onwave and other retailers.

GBCULLEN wrote: »

Is all this done to confuse us??

No.

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#4 11-02-2012 3:27pm

swoofer

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i should have asked as well, is this saorsat transmitting 24/7 now?
and thanks for replies

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#5 11-02-2012 3:43pm

Apogee

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Yes

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#6 12-02-2012 2:47pm

swoofer

Registered Users Posts: 5,401 ✭✭✭

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got it with a 1.1m triax, 92% S and 74%Q but could not get it by taping lnb to existing. So signal strength quite low but I did not tweak dish, no time.

gbc

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