#epirb — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #epirb, aggregated by home.social.
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Whats most worrying here is this couple appear to be seasoned and experienced travellers and were well prepared, but appeared unable to have sent out a MAYDAY call when their small boat got into trouble (possible collision with bulk cargo vessel in same channel) and did not have an #EPIRB (they did at least file traffic report with the Coastguard who reported them missing on 2024-07-03)
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USCG: "Mariners intending to conduct an open ocean passage are highly encouraged to have multiple layers of communication, including a VHF-FM DSC radio, HF DSC radio, satellite communications, and a 406Mhz electronic position indicating radio beacon (EPIRB) as the notification of last resort to help SAR authorities locate your position in a time of need.”" #marine #safety #radio #epirb
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It refuses to power up when fed with DC.
DO these EPIRB things need a complete battery for test or other use?Do note, I have removed the high power UHF PA and wired the PA input pin and the antenna port into BNC pigtails, so that emissions on 406MHz 121.500MHz are contained and not radiated.
I want to modify the 406MHz side to the #70cm amateur radio band and the 121.500MHz side to somewhere on 2m.
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#enos is good because it's cheap, doesn't require licensing nor registration and since it's not using emergency radio bands, is not susceptible to costly false alerts...
Personally, I did consider buying my own #ENOS beacon as a #diver since it's cheaper than any other #EPIRB and can be really helpful in areas of strong currents where it's impractical to swim.
https://en.wikipedia.org/wiki/ENOS_Rescue-System
https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon -
#enos is good because it's cheap, doesn't require licensing nor registration and since it's not using emergency radio bands, is not susceptible to costly false alerts...
Personally, I did consider buying my own #ENOS beacon as a #diver since it's cheaper than any other #EPIRB and can be really helpful in areas of strong currents where it's impractical to swim.
https://en.wikipedia.org/wiki/ENOS_Rescue-System
https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon -
#enos is good because it's cheap, doesn't require licensing nor registration and since it's not using emergency radio bands, is not susceptible to costly false alerts...
Personally, I did consider buying my own #ENOS beacon as a #diver since it's cheaper than any other #EPIRB and can be really helpful in areas of strong currents where it's impractical to swim.
https://en.wikipedia.org/wiki/ENOS_Rescue-System
https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon -
CW: research review
A. Costin et al., "Cybersecurity of COSPAS-SARSAT and EPIRB: threat and attacker models, exploits, future research"¹
COSPAS-SARSAT is an International programme for "Search and Rescue" (SAR) missions based on the "Satellite Aided Tracking" system (SARSAT). It is designed to provide accurate, timely, and reliable distress alert and location data to help SAR authorities of participating countries to assist persons and vessels in distress. Two types of satellite constellations serve COSPAS-SARSAT, low earth orbit search and rescue (LEOSAR) and geostationary orbiting search and rescue (GEOSAR). Despite its nearly-global deployment and critical importance, unfortunately enough, we found that COSPAS-SARSAT protocols and standard 406 MHz transmissions lack essential means of cybersecurity.
In this paper, we investigate the cybersecurity aspects of COSPAS-SARSAT space-/satellite-based systems. In particular, we practically and successfully implement and demonstrate the first (to our knowledge) attacks on COSPAS-SARSAT 406 MHz protocols, namely replay, spoofing, and protocol fuzzing on EPIRB protocols. We also identify a set of core research challenges preventing more effective cybersecurity research in the field and outline the main cybersecurity weaknesses and possible mitigations to increase the system's cybersecurity level.#arXiv #ResearchPapers #EPIRB #COSPAS #SARSAT #SatelliteSecurity
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¹ https://arxiv.org/abs/2302.08361