#cband — Public Fediverse posts

TrustPoint sets 2027 target for initial rollout of LEO-based navigation services

https://fed.brid.gy/r/https://spacenews.com/trustpoint-sets-2027-target-for-initial-rollout-of-leo-based-navigation-services/

#5G update: #TMobile has dropped 2.5 GHz (Band 41) #LTE entirely in a number of markets, including Austin, widening n41 by the same amount. I think the #Austin switchover happened at ~9:20am this morning as a friend briefly lost connectivity right around then (probably cell site reboot), prompting me to look at my phone's field test.

I found a sweet, sweet 100 + 80 MHz of #n41 live, which is well above what #Verizon or #att can bring online with #CBand right now.

750 Mbps indoors at home FTW!

@thebaldgeek I am betting you got a PLL #cband #LNB and it is sensitive to the cold. This has been a problem with these LNB's for a long time, as you can see from this article from 2016:

Are phase-locked loop (PLL) LNB’s a good idea?
https://freetoairamerica.wordpress.com/2016/06/06/are-phase-locked-loop-pll-lnbs-a-good-idea/

(Note the last EDIT down near the bottom of the article).

I don't know how cold it gets where you are but I suspect you are going to have issues during any cold weather event. In theory you could attach some kind of heating element, like a small reptile tank heater (make sure it's waterproof) and turn it on a few minutes before you want to watch TV but IMHO those things are just poorly designed, even if they are being marketed as a solution for 5G interference.

Pulling my hair out of late (wait, Im bald!).
I swapped the #LNB on the #cband dish because I was getting, what I suspect is #5G interference for an #LNB that has a filter.
Turns out the new LNB is a bit of delicate snowflake and is unhappy outside of a very small temperature range.
I have already done the #GPSDO modification, so its not that.
Long story short, I thought it was a tracking issue for a good while, but now working on getting a stable temperature range for it.

Quick update. Usual insane #ACARS day here. Working with a guy in Ireland on #VHF VDL2 #RTLSDR v3 message logging. Then helped a guy in Ireland about L-Band system handshakes.
Got to do a bunch building the #L-Band #Helix #antenna, but did not finish as a guy I have been helping in Maine get running on data from #Inmarsat #CBand needed some help.
Bottom line, close to a world-first here. #ADSC data from 54w.
We now truly have global coverage from all 4 satellites!