zeroiee, to random
@zeroiee@techhub.social avatar

With and mobile connections, the demands on the voltage sources have also increased: In particular high peak currents of approx. 4 A @ 3.7 V and more can push some circuits and the voltage converters installed in them to their limits.

In the event of stability problems with mobile radio modems, it is therefore particularly worth taking a brief look away from the software and towards the hardware. Can the power supply really meet the high requirements? An examination with an oscilloscope shows even the smallest fluctuations in the millisecond range and can reveal possible problems.

In our specific case, we are investigating stability problems with a new modem, which can only be reproduced unreliably. In the video you can see that even small pings have a visible effect (voltage fluctuations of approx. 800 mV) on the voltage source.

Video shows terminal with ping command in it. Camera moves to oscilloscope, which shows tiny voltage drops in the same interval as pings are sent (one per second).

BeaupailleReveilAttendu, to random French
@BeaupailleReveilAttendu@mastodon.social avatar

Il propose quoi notre Haut Commissaire au Plan face au marasme actuel?
Combien est payé ce type?
Quelles sont ses contributions à un monde meilleur?
de secours, pas de , c'est un âne.
version .

paul_denton, to random French
@paul_denton@mastodon.social avatar

Bayrou veut faire mentir les sondages qui prédisent une déroute macroniste aux Européennes: "J'ai la conviction que le discours prospectif remarquable (la brosse à reluire, toujours, NDLR.) de Macron à la Sorbonne va infuser. Rendez-vous fin mai, vous verrez", affirme le Béarnais dans Challenges. Ça, pour voir...

paul_denton, to random French
@paul_denton@mastodon.social avatar

Bayrou s'inquiète pour la France après Macron qu'il qualifie de "frère d'armes" (sans rire) et lorgne sur 2027: "Il se voit comme un recours, vers qui l’on pourrait se tourner en ces temps difficiles" Réponse du commissaire au Plan: "La situation ressemble à cela". Ça ne ferait jamais que la 4è fois https://www.leparisien.fr/politique/avec-le-president-nous-sommes-des-freres-darmes-francois-bayrou-toujours-la-29-04-2024-ZXGEECTVWFEUBLUUKRGAZZZPRQ.php

filippodb, (edited ) to forum Italian
@filippodb@mastodon.uno avatar

Free Forum Zone è sbarcata su mastodon con un account ufficiale!

:mastodon: @freeforumzone

Una notizia che farà felici chi bazzicava internet 15-20 anni fa, un'era geologica senza influencer in cui i forum e i blog dominavano la scena. La mia prima community/forum fu proprio su FreeForumZone ❤️

I forum sono ancora il modo migliore per discutere online senza la tossicità e la gamification dei social e inizierà da ora l'integrazione nel fediverso, benvenuti!!

paoloredaelli,
@paoloredaelli@mastodon.uno avatar

@filippodb
Gandalf, io ero là prima 😜😜😛. Prima delle , quando c'erano i a 33k e le università avevano delle velocissime linee T1!
@freeforumzone
Sì, sono così vecchio 🤠🧓🏻👴🏻

vingtroiseize, to c64
@vingtroiseize@mastodon.world avatar
zeroiee, to RaspberryPi
@zeroiee@techhub.social avatar

Having power issues sometimes is the "It's always DNS" equivalent in the embedded electronics world.

When we wanted to put one of our customer projects into operation, we noticed strange problems with a Quectel modem that we had not had before. Of course, from a software developer's point of view, the software was initially suspected of causing problems. But slowly a different picture emerged ...

Read the full story and learn how important it is to always consider hardware when you're having software problems (and vice versa!):

https://blog.zero-iee.com/en/posts/quectel-rn520g-stabilitaetsprobleme-raspberry-pi/

m0bi13, (edited ) to PoE Polish
@m0bi13@pol.social avatar

📶 Dzisiaj w końcu czas, pogoda i drabina, więc instalacja LTE w mojej miejscówce w

Nareszcie znośny net w lesie 😉 🌳 🌲
W porównaniu do mojego "miejskiego" modemoroutera LTE Alcatel to bardzo dobry wynik i da się pracować 👍

onepict, to random
@onepict@chaos.social avatar

Don't quote the old web to me.

I was there when geocities websites were written

paoloredaelli,
@paoloredaelli@mastodon.uno avatar

@onepict
Many people here are that old. I still remember the sound of 33.6k connecting, with Miami TCP stack, , and Yam. 😄
I should still have their keys somewhere…

metin, to internet
@metin@graphics.social avatar

From the ar(t)chive…

Stylized 3D illustration for a 2008 issue of the Dutch ComputerTotaal magazine, about the launch of the then-fast ADSL 2+ internet connection speed (before fiber optic internet became the standard).

paul_denton, to random French
@paul_denton@mastodon.social avatar

La majorité anticiperait-elle la défaite pour ces Européennes: "On fait comme si mais le cœur n'y est pas, confie un député macroniste. On voit bien que le RN bénéficie de la dynamique, c'est un vote anti-Macron". Les élus et cadres des partis sont tétanisés par des sondages qui prédisent une branlée à Macron et ses affidés. "On va finir comme les socialistes", s'écrie cet élu. La faute à qui?

sharewarewolf, to free
@sharewarewolf@bitbang.social avatar
tykayn, to random French
@tykayn@mastodon.cipherbliss.com avatar

that's what i call a firm

itnewsbot, to retrocomputing
@itnewsbot@schleuss.online avatar

Replacement PCB Replicates Early 80s Modem - It’s certainly been a few decades, but plenty of us remember a time before widespr... - https://hackaday.com/2024/02/21/replacement-pcb-replicates-early-80s-modem/ -up -in

paul_denton, to random French
@paul_denton@mastodon.social avatar

Tiens, la chaîne Cnews omet de mentionner que Marina Ferrari, la nouvelle ministre au Numérique, est aussi la cousine de sa "journaliste" Laurence Ferrari. Comme Alain Duhamel avait oublié de mentionner qu'Amélie Oudéa-Castéra était sa nièce. Il ne faudrait pas le dire trop haut.

paul_denton, to random French
@paul_denton@mastodon.social avatar

Gabriel Attal dit avoir un "grand respect" et une "admiration sincère" pour Bayrou ce soir sur France 2. Explications: Macron lui a passé un savon pour ne pas avoir su "traiter", selon lui, avec le haut-commissaire au Plan. Et pour cause, Bayrou est ingérable... A ce stade, c'est du théatre tragi-comique.

paul_denton, to random French
@paul_denton@mastodon.social avatar

Oups, le parquet fait appel de la relaxe de Bayrou dans le procès des collaborateurs du Parlement européen, révèle Le Figaro. Le patron du MoDem avait été relaxé au "bénéfice du doute". De là à penser que Macron a préféré ne pas le nommer ministre... https://www.lefigaro.fr/actualite-france/affaire-modem-le-parquet-fait-appel-20240208

minioctt, to internet Italian

Di cosa dovrei di più: del fatto che ormai da mesi — e in questi ultimissimi giorni la è peggiorata , https://octospacc.altervista.org/wp-content/uploads/2024/02/image-7.png — la linea di casa salta di continuo, mettendo da sé continui bastoni tra le ruote al mio workflow… o del fatto che quando collego il telefono via tethering USB il mio sistema desktop sembra non essere sempre in grado di routare correttamente i pacchetti — in certi casi capisce che deve farli passare attraverso il telefono sennò non vanno da nessuna parte, ma altre volte si ostina a mandarli al mio bridge ethernet? !!! 🗡️🗡️

È una domanda retorica, ovviamente; mi più con , che mio padre paga per farci avere in cambio un servizio che dire è fargli un complimento, di quanto mi possa mai arrabbiare contro un software no-profit per un che posso aggirare praticamente scollegando dei cavi. Però davvero non ne posso più, non solo questo comportamento mi ruba tempo quando lavoro al PC, ma mi manda pure giù le cose che ospito sul serverino in casa, e che palle. 😭️

Ogni tanto ricordo di questo bordello a mio padre, ma fino ad ora ancora non l’ho convinto a provare a comprare un nuovo, uno vero con cui rimpiazzare quel rottame della … lui dice che probabilmente i problemi sono sulla linea, e in parte anche io credo sia così (ma chissà quale segmento della linea!); però se anche così fosse il caso, resta comunque indecente il fatto che, mentre il alla WAN si scollega e il tenta di ricollegarsi, la Station non è nemmeno in grado di roteare pacchetti in LAN… cioè, fai ping e avoja ad aspettare, non risponde. È evidente che pure il che sta lì sopra fa schifo, mica solo la linea. E-waste puro. 💀️

https://octospacc.altervista.org/wp-content/uploads/2024/02/image-6.pngAh, non centra con questi (mi è sempre capitato, e non impatta su questa situazione), ma guardate qui sto : certe volte (credo a furia di disconnessioni e riconnessioni?) sfancula e cambia i nomi delle mie schede di nel pannello rapido (in questo caso di GNOME, ma lo faceva anche su Cinnamon)… ma poi nelle impostazioni i nomi sono corretti. Mamma mia che il software. 😩️https://octospacc.altervista.org/2024/02/07/mannaggia-a-vodafone-di-continuo/

paul_denton, to random French
@paul_denton@mastodon.social avatar

On me souffle que le « désaccord politique » évoqué par Bayrou concerne moins la politique de Macron que le périmètre du ministère réclamé par le Béarnais. « Il voudrait être un Premier ministre bis », s’agace ce soir un conseiller. C’est tout de suite moins glorieux. En tous cas, pas de remaniement ce soir, le coup de colère du maire de Pau rabat les cartes…

Baloo_76,
@Baloo_76@piaille.fr avatar

@paul_denton
Euh... il a combien de temps, le Parquet, pour faire appel de la relaxe de ? 🤔 😂

Baloo_76,
@Baloo_76@piaille.fr avatar
grebert, to random French
@grebert@mastodon.top avatar

savait, mais rien de prouve qu'il savait.
La , qui ne s'occupe pas de la morale, le relaxe.
Jugement logique.
Le lui est condamné à payer 300.000 euros d'amende (sans sursis).
Ce qui condamne moralement son président.

kd8bxp, to hamradio
@kd8bxp@mastodon.radio avatar

I think I must be going a little crazy..... I just heard a very distinctive dial up modem sound.... Maybe 9600 baud.
No radios are on....so it wasn't something sending packet or aprs.
But that's not the crazy part .... No one else in the room heard it, I was the only one.....

It wasnt loud, and didn't last very long. For the life of me I have no idea what would have made the sound...

kd8bxp,
@kd8bxp@mastodon.radio avatar

So I heard the noise again tonight....this time it was coming out of a game my grand daughter was playing. She said "yes I was playing the game the other day". To which I asked why didn't you tell me when I asked about the modem sound? Then I got the answer we all knew was coming...... "What's a modem sound, that's the lagging sound in Roblox"

Mystery solved. I just didn't know to ask the right question.

technotim, to internet
@technotim@mastodon.social avatar

This is probably the most important tutorial I've ever written.

ben, to random
@ben@hardill.me.uk avatar

Got a stable 9600 baud connection between 2 analogue modems via SIP.

Next up setup remote dial up login and a BBS followed by trying to get PPP to run.

Will keep poking at the SIP settings to try and get things to run a little quicker.

I think in theory it should be possible to get at least 14.4 working...

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