Posts by DB8TF
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Hello. I am pleased announce that the problem has been solved. I changed the polarization of the LNB by changing the supply voltage.
i asked you many days ago if you have switched your polarisation:
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Seams like your RX signal is to weak.
On the NB you have a system noise of S5,8 > 34,8dB
The lower Beacon has S9+13 > 67dB
So your Beacon SNR is abt 32,2 dB
On my dish (120cm) the lower beacon has 40-41dB SNR (depending on the Console BW)
Zoom out of the NB (2,4MHZ BW) and look if you can see the TP shoulders.
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I think the problem can be solved by replacing the sdr receiver. I would to know: what brand and model of usb sdr receiver are you using? Thank you
Your sdr receiver is sure not the problem! I use the exact same type here
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no problem here with an even older RTL-SDR Stick.
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Have you switched the RX polarization ?
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In the "Filter" Tab on the left you can set and modify the RX Bandpass
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Calm down everybody...
It doesn't matter which equipment you use to join the QOMs, try to make sure that your uplink signal is ok and if you are sure that you have a nice,clean and not to strong signal them it is (in my opinion) not nessecary to monitor your signal in realtime.
BUT if other QOMs tell you that you signal is not ok then try to find the fault and fix it as fast as possible!
It's just basic hamspirit 😀
73s DB8TF
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I tried dvb-s_gui_amsat and had good results with the wide band tv channel plus a couple of narrow band transmissions but most of the transmissions just will not decode.
as a general rule are the transmissions all DVB=S2 or are some S1?
and the various other settings do they need to be changed from the default? obviously the sym rate has to match the transmission but what about fft, bb gain, spectrum, rf filter, rrc taps etc?
all the signals I tried look strong and I set the sym rate correctly output to vlc is tcp and carrier recovery is enabled just as with the working transmissions but no video on most.
I suggest that you read this whole thread and then you will have all your questions answered.
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email Adress is [email='df9cr(..AT..)t-online.de'][/email]
Nice! Every e-mail Bot is happy that you are posting df9cr's adress without (at) or such thing
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I am SWL. My SWL callsign is AP2ARS/RD only allow in club station. AP2ARS is club callsign
So if you are legally allowed to transmit in club station using the callsign AP2ARS/RD then please change your nickname to that.
"Normal" SWLs asking for tips about TX are suspicious. Happened some times in the past.
73
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What is your personal callsign?
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Thank u every one. Now i am facing problem while i connect my pluto with usb LAN. Pluto tx with 1 sec delay continusly like glitching while tx
If you are planning to TX then please change your username to your callsign. Then you are in fact no longer a SWL.
73s
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a simple HF VOX should do the trick..
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Nino Porcino Decoder runs on my Win 10 2004 64bit without problem
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Maybe it would be a good idea to install a "voice beacon" instead of the upper CW beacon
where a repeating voice message gives informations about the correct use of the NBTP.
73s
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Which countries allow operation on 2.4 GHz was also discussed in the Forum (last year?).
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... he was exceeding the typical SSB bw (3kHz).
The allowed bandwith on QO100 NBTP is 2,7kHz max..
73 73s 73s-s 73²
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On a working system with a 1m dish the lower beacon is about 36db SNR @ ca. 500kHz SDR Console BW.
Depends a little bit on your Console settings.
Check for the right polarization/skew of the LNB.
73s
