Severe space weather event on 11 November 2025 ― A class X5.1 solar X-ray flare occurred on 2025/11/11 with peak time 10:04UTC. This is the strongest flare so far in 2025 & currently ranks 6th in the strongest flares of the current solar cycle. #space #weather #solar #storms #geomagnetic #cme #flares #radios #energies #satellites #systems #aero #disturbance #threats #icao #acfj [ https://swe.ssa.esa.int ]

THEM: Are you okay?

ME: Yeah, but change the topic before my body figures it out

*a flare has entered the chat*

#flares #flareday #autoimmune #chronicillnesshumor

#instax print of backlit biker.

#nstx #photography #flares

11 #OffGridCommunication Methods: Staying Connected in Emergencies and Remote Areas

September 18, 2023

"In today's digital age, staying connected is often taken for granted. We rely heavily on our smartphones and the internet to keep in touch with loved ones and access vital information. However, in emergency situations or remote areas where traditional communication methods may become unreliable or fail, it is essential to have alternative means of staying connected. Off-grid communication techniques offer a lifeline for individuals to communicate with others and seek help when needed.

Here are five reliable and realistic off-grid communication methods that let you have a conversation like you would on a cell phone when your cell is down for the count:

1. Ham Radio: Making Connections, No Matter the Distance

When it comes to off-grid communication, few methods can match the power and versatility of ham radios, also known as amateur radios. Ham radios work by transmitting and receiving signals through antennas.

Their range of communication can vary depending on factors such as frequency, antenna height, atmospheric conditions, and obstacles like buildings or terrain. In optimal conditions, ham radios can communicate over hundreds of miles, potentially even globally. Ham radios are beneficial for emergency communication and can provide a means of staying in touch with others during natural disasters or in remote wilderness areas. It is important to note that obtaining a license and some technical knowledge is necessary to operate a ham radio legally and effectively.

When traditional infrastructure falters, or in off-grid scenarios where traditional cellular networks are inaccessible, ham radios prove their worth as a reliable means of communication.

2. CB Radio: Keeping Your Group Connected

For those looking for a simple and accessible option, CB radio comes to the rescue. Citizens Band radio, or CB radio, operates on a set of 40 channels and does not require a license to use. It is a simple and effective off-grid method that offers a reliable means of communication within a localized area. CB radios are commonly used by truck drivers, outdoor enthusiasts, and emergency responders. CB radios work by transmitting and receiving radio signals using handheld devices or mounted units in vehicles.

While their range is shorter compared to ham radios, typically reaching a few miles, CB radios still prove effective for staying connected with your group while exploring remote areas or during emergencies when cellular networks go down. With their simplicity and ease of use, CB radios ensure you'll be able to communicate when it matters most.

3. Satellite Phone: Communication Without Boundaries [Note: Will not work after #KesslerSyndrome events]

When you find yourself in areas without cellular coverage, satellite phones step in to bridge the gap. By connecting to orbiting satellites, these devices provide global coverage, allowing you to make calls and send messages from virtually anywhere on the planet.

Whether you're exploring remote regions or facing emergencies in areas lacking traditional infrastructure, satellite phones become invaluable tools for staying connected. It's worth noting that satellite phones may come with a higher price tag compared to other options, but their ability to keep you in touch with the world makes them well worth the investment.

4. Walkie Talkies: Portable and Practical Communication

If you're looking for a portable and practical off-grid communication solution, look no further than walkie talkies. These handheld devices provide short-range communication through radio waves. They are simple to use and do not require any licensing.

Walkie talkies work by transmitting and receiving radio signals between two or more devices. The range of communication for walkie talkies typically varies based on factors such as terrain, obstacles, and the power of the devices. In general, walkie talkies can provide effective communication in the range of a few miles, making them ideal for coordinating activities within a group or staying in touch during outdoor adventures. Walkie talkies are commonly used by hikers, campers, and event organizers, enabling quick and reliable communication in off-grid situations.

5. Mesh Networking Devices: Building Connections Without Infrastructure

When traditional infrastructure is unavailable, mesh networking devices step in to establish connections where none exist. Devices like goTenna or Sonnet create peer-to-peer networks, forming a web of interconnected devices. They create a decentralized network by linking multiple devices together, with each device acting as a "node" or connection point that can directly communicate with nearby devices.

It's important to note that the range of mesh networking devices depends on factors such as the number of devices in the network and the surrounding terrain. These devices excel in situations where communication becomes difficult due to the lack of infrastructure.

Two "One Way Street" Options

Sometimes, off-grid communication becomes a "one-way street" situation where you either need to receive or send critical information without engaging in a full-blown conversation. Two options that fit this scenario are shortwave radios and GPS messenger beacons.

Shortwave radios provide up-to-the-minute information during emergencies, even when cell phone towers fail. As seen in the case of the Maui fires, communication failures left people without a way to get in touch with loved ones, and critical cell phone alerts went undelivered. In such scenarios, shortwave radios can provide reliable and up-to-the-minute information, potentially saving lives.

GPS messenger beacons, on the other hand, allow users to send distress signals and their precise coordinates to rescue services. This enables quick and targeted assistance in emergency situations, even when direct communication is not possible.

Four Low-Tech Off-Grid Communications Techniques

Off-grid communication doesn't have to be high-tech to be effective. The classic survival movie scene of building a roaring fire on a deserted island/remote mountain/in a dense jungle to signal for rescue is a cliche for a reason and speaks volumes of the power of low-tech and no-tech methods to communicate the need for help. From #SmokeSignals to #flares to #mirrors to #whistles, resources as simple as these can help save the day. These low-tech visual and auditory signaling techniques can be highly effective in emergencies when you simply need to be spotted or heard.

Bottom Line: Off-Grid Communication Methods can be a Critical Lifeline

Mastering off-grid communication techniques is vital for increasing self-reliance and preparedness in emergency situations and remote areas. By understanding and utilizing these methods, individuals and their families can stay connected, seek help when needed, and increase their chances of survival. From a high-tech ham radio or satellite phone to a simple radio and whistle, having a range of off-grid communication tools is an essential part of any emergency preparedness plan."

Source:
https://www.survivalfrog.com/blogs/survival/11-off-grid-communication-methods-staying-connected-in-emergencies-and-remote-areas

#SolarPunkSunday #MeshNetworks #HamRadio #CBs #WalkieTalkies #OffGridCommunications #EmergencyCommunication #OffGridCommunication #StayingConnected

LLAMARADAS SOLARES

#reelschallenge #facebookviral #instagram #reddit #sun #sol #flares #viralreelschallenge #destacar #Todos #seguidores #viral #trending #facebook #Youtube

https://youtu.be/AOrctWM7aXA

Dieses #Zeitraffervideo der #Perseiden aus dem Jahr 2015 zeigt einige der #Sternschnuppen und #Flares in der Nacht. Am #Himmel sehen die Schnuppen besser aus, als auf den #Fotos, weil das Auge empfindlicher reagiert. Trotz #Lichtverschmutzung im Stadtrand von #Berlin konnten diese Aufnahmen gemacht werden. Damals störten noch keine hellen #Satellitenreflexionen von #Megakonstellationen. 🌌🌠

#Zeitraffer #Astrofotografie #Nachthimmel

https://tino-eberl.de/videos/zeitraffer-der-perseiden-2015-sternenspuren-und-der-vollmond/

'Gegenlicht' und Flares, eingefangen mit Altglas, sind ja mein absolutes guilty pleasure 😄 Hier vom #FestivalOfLights in #Berlin.

#fotovorschlag #flares #vintagelens #backlit

Where do you see yourself 12 flares from now? What's your 12 flare plan?

#flaringup #flares #flareday #autoimmune #autoimmunehumor #chronicillnesshumor

Clingy planets can trigger own doom, suspect Cheops and TESS 🛰️🪐

#Exoplanet #Flares #Magneticfield

▶️ 1 new picture from ESA https://commons.wikimedia.org/wiki/File:Clingy_planets_can_trigger_own_doom%2C_suspect_Cheops_and_TESS_ESA510529.png

DOCTOR: What usually triggers your flares?

ME: Waking up.

#flares #chronicillness #autoimmune

Her flare burns so bright that she hands out protective eye glasses to those around her

#chronicillness #autoimmune #chronicallyill #chronicillnesshumor #chronicillnessmemes #autoimmunememes #fibromemes #fibromyalgia #spoonie #flares #flareday #flareup #autoimmuneflares

A Multiwavelength Look at Proxima Centauri's Flares

https://www.centauri-dreams.org/2025/04/01/a-multiwavelength-look-at-proxima-centauris-flares/

#HackerNews #Multiwavelength #ProximaCentauri #Flares #Astronomy #SpaceScience #StellarPhenomena

Weekly Update at the Open Journal of Astrophysics – 22/03/2025

It’s Satuday morning once again, and time for another update of papers published at the Open Journal of Astrophysics. Since the last update we have published two papers, which brings the number in Volume 8 (2025) up to 29 and the total so far published by OJAp up to 264.

The papers we have published this week are connected by the theme of black holes and their role in galaxy formation, which is a very hot topic nowadays!

The first paper to report is “Hawking Radiation from non-evaporating primordial black holes cannot enable the formation of direct collapse black holes” by Jonathan Regan, Marios Kalomenopoulos and Kelly Kosmo O’Neil of the University of Nevada, USA. This paper, which is based on an undergraduate thesis, is a study of the irradiating effects of primordial black holes and a discussion of whether these might influence the subsequent formation of supermassive black holes. It is in the section marked Astrophysics of Galaxies, and was published on Tuesday  18th March.

The overlay is here:

and you can find the final accepted version on arXiv here.

The second paper, which was published on Wednesday 19th March and is also in the folder Astrophysics of Galaxies, is “First Light and Reionization Epoch Simulations (FLARES) – XV: The physical properties of super-massive black holes and their impact on galaxies in the early universe” by Stephen Wilkins & Jussi K. Kuusisto (U. Sussex, UK), Dimitrios Irodotou (Institute of Cancer Research, UK), Shihong Liao (Beijing, China) Christopher C. Lovell (Portsmouth, UK), Sonja Soininen (Insitute of Cancer Research), Sabrina C. Berger (Melbourne, Australia), Sophie L. Newman (Portsmouth, UK), William J. Roper (Sussex), Louise T. C. Seeyave (Sussex), Peter A. Thomas (Sussex) and Aswin P. Vijayan Sussex). This paper uses cosmological hydrodynamical zoom simulations to study the formation of supermassive black holes and their impact on star formation in the early Universe.

Here is the overlay, which you can click on to make larger if you wish:

You can read the officially accepted version of this paper on arXiv here.

That’s all for this week. It’s been a bit frustrating for me as Managing Ediutor, because we have built up a backlog of several papers that were accepted for publication some time ago, but are still waiting for the authors to place the final version on arXiv. I hope these won’t take too long to appear, not least because I would like to clear my workflow on the Scholastica platform!

#arXiv240402815v3 #arXiv241109081v2 #AstrophysicsOfGalaxies #DiamondOpenAccess #FirstLight #FLARES #galaxyFormation #HawkingRadiation #OpenAccessPublishing #OpenJournalOfAstrophysics #primordialBlackHoles #reionization #supermassiveBlackHoles

Chinese J-16 Fighter Releases Flares Near Australia's P-8 Surveillance Aircraft

https://defensemirror.com/news/38823/Chinese_J_16_Fighter_Releases_Flares_Near_Australia_s_P_8_Surveillance_Aircraft

#airforce #Australia #RAAF #China #J16 #PLAAF #P8A #Poseidon #flares #SouthChinaSea #Philippines #Japan

Chinese J-16 Fighter Releases Flares Near Australia's P-8 Surveillance Aircraft

https://defensemirror.com/news/38823/Chinese_J_16_Fighter_Releases_Flares_Near_Australia_s_P_8_Surveillance_Aircraft

#airforce #Australia #RAAF #China #J16 #PLAAF #P8A #Poseidon #flares #SouthChinaSea #Philippines #Japan

The U.S. All-domain Anomaly Resolution Office (AARO) has released a white paper titled "Correlations of Starlink Satellite Flaring with UAP Observations".

https://www.aaro.mil/Portals/136/PDFs/Information%20Papers/AARO_Satellite_Flaring_Paper.pdf

#Space #UAP #SpaceEnvironment #Satellites #Flares #Starlink