Kurzer Zwischenstand:
Auch die nächsten 5 Satelliten nutzen die bekannte UHF-Frequenz für TT&C,
allerdings soll es in / über Deutschland weder einen Uplink noch einen Downlink geben....
Posts by DG8KD
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Danke für den Screenshot.
Quelle?
Eigentlich sollten die Mobilfunksender beim Überflug über Deutschland aktuell ausgeschaltet sein, der Überflug erfolgt aktuell einmal in der Nacht über DL.
Die offizielle Testphase für den Mobilfunkbetrieb in den Staaten startet vorauss. Ende des Monats.
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Nach ein wenig Suche im offenen I-net (twitter) gefunden.
Die Lizenz im 70cm Amateurfunkband verfällt am 24.05.2023.
Ob die nächsten 5 Satelliten, die bis Ende 2023 gestartet werden sollen, wieder die 437.500 MHz nutzen werden, konnte ich noch nicht in Erfahrung bringen.
Hier der Versuch einer Erklärung, wieso auf BW-3 diese Frequenz/Modulation nutzt:
"A month ago, I looked at the UHF packets and checked that BlueWalker 3 used exactly the same modulation and coding as Light-1, which is a 3U cubesat from United Arab Emirates (this was first discovered by Tetsurou Satou JA0CAW). The framing contains the typical elements of the built-in packet handler of low cost FSK chips such as the Texas Instruments CC11xx family. Scott Tilley noticed some details that seem to explain this connection: Light-1 was built by NanoAvionics, which apparently has collaborated with AST SpaceMobile in the BlueWalker 3 mission. Therefore, it seems that the satellite bus used by BlueWalker 3 is that of a typical cubesat."
Decoding the BlueWalker 3 S-band downlink – Daniel Estévez (destevez.net)
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Moin zusammen,
Ich werde mal meinen Kontakt bei AST kontaktieren. Mal sehen, was er dazu sagt...
Die Antwort wird wahrscheinlich unter mein NDA fallen....
73
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Moin Peter,
Hat diese absichtliche (?) Miss-Nutzung irgendwelche Konsequenzen für den Betreiber?
73
Rainer
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Write a polite mail to fournitures@r-e-f.org ,
normally they are selling to all OMs
copy from vivadatv:
For the total amount including shipping to your country, ask the service: fournitures@r-e-f.org
For non members, you can send the amount directly using Paypal to the account of REF (ref-paypal@r-e-f.org) .
Make sure that Paypal message contains the subject of the payment and the return address for the MinitiounerPro V2
73
Jean-Pierre F6DZP -
We are talking here about a hobby, not a commercial available and maintained Software....
Stay cool and make your donation to support and allow further developments.....don´t be rude and force updates.....
We all have limited spare time and sometimes maybe more important things to do....
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I´ve given my pluto a fixed IP by entering the IP of the network adaptor here:
[USB_ETHERNET]
ipaddr_eth = 192.168.1.205 (example)
netmask_eth = 255.255.255.0
Do not forget also to enter the IP of the standard gateway of the host.
DHCP can lead to changing IP adresses.....
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Maybe flashing the Pluto via USB again could solve the problem....
Latest DATV version can be found here:
firmware.hackhamradio.com/alpha/
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Hi Trevor,
you have modified the config.txt with the right IP adress of the ethernet adaptor?
http://www.dd1us.de/Downloads/…20Area%20Network%20v2.pdf
If you power the ethernet adaptor directly via your PC and connect it to the network, did you see the adaptor in your network? Are you able to ping it?
Those IP adress have to be used in the config.txt.
73
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So even a PING is impossible?
You know the IP adress of the network adapter? Can you ping it?
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Hi,
I could solve my problems by adding an additional capacitor at the power feeding point, just 1000yF and 100nF.
The output of the PSU was not clean enough.
I am powering via the Ethernet adaptor only.
73
Rainer
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Hi,
I observed the same problem today, but my Pluto has the GND modification and I am powering with a 5.2 V / 3A power supply.
So most common reasons should have been avoided.
73
Rainer
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Display More
Just be patient..there is already a proof of concept. Now packaging it in a new firmware for plutosdr.
You need :
- PLutoSDR
- HDMI input : https://www.ebay.fr/itm/WR-USB…Audio-Record/184364880346
- If you want analog in , add Analog to HDMI : https://www.ebay.fr/itm/AV-to-…ter-HDTV-DVD/274349165620
- Future DATV plutosdr firmware
That's it : all in one encoder - DVBS/S2 modulator less than 200 Euros.
More details soon.
73
F5OEO
Hi,
out of curiosity:
You link HDMI input : https://www.ebay.fr/itm/WR-USB…Audio-Record/184364880346 points to a converter USB IN to HDMI out.....
How to get HDMI in a Pluto? Or is the picture wrong?
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DG8KD There should be signal strengh. Your proposal is not a solution, because if the signal strengh is available the PID will be done automatically.
I see a RF power of -51 dBm in http://www.vivadatv.org/download/file.php?id=1863
This should be sufficient.
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5th button on right hand side named "France24"
may be need to enter frequency and SR manually
Yes, wrong PIDscan lead to the unability to decode the TS, even to the impossibilty to lock the TS...
PS: will the short destroy both Serrit inputs A and B?
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Hi,
I am not talking about a full misallignment , may be a lttle bit....
If you are able to receive the normal TV programs the MT itself is in working condition.
The picture http://www.vivadatv.org/download/file.php?id=1863 shows the wrong pids.....
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Hi Lutz,
I was struggling with the same problem.
With the following approach I was able to access the Pluto via my LAN:
External Content www.youtube.comContent embedded from external sources will not be displayed without your consent.Through the activation of external content, you agree that personal data may be transferred to third party platforms. We have provided more information on this in our privacy policy.Hope that helps.
73
Rainer
