OE1RFC

@[email protected]
37 Followers
64 Following
72 Posts

Embedded Linux and network engineer, building community wireless networks in the past.

Licensed 2010, member of the @metalab hackspace and @metafunk
Currently mostly working FT8 with an FT817 and a balcony monopole.

Instance admin of literatur.social over at @datacop.

header image by @alphabet

QTH 🏡JN88 Vienna/Austria
main accounthttps://literatur.social/@datacop
Equipment 📻FT817ND on balcony antenna
pronounshe/him/they/them
Show threadOE1RFCMay 29, 2025
@n8dmt I haven't heard of any other dead VX8, they seem to quite robust. But yeah, with the service manual it is not that bad, even though the PCBs definitely could need more probe points. I expected that I would need more time to find the issue, but marking possible issues in the schematic beforehand definitely payed off ;)
Show threadOE1RFCMay 28, 2025
@neuron I fully agree, without the service manual I probably would have never found the fault, as the LDO regulator is on the completely other side of the PCB and the routing is just chaos 😅 It was already hard enough to find the components in the layout.
OE1RFCMay 28, 2025

Some time ago this Yaesu VX8 of a friend of mine died while transmitting, no display, no LEDs, no charging light.

Last week I took it apart to see if it could be fixed.
I traced the voltage rails in the service manual, the micro controller voltage was completely dead. I suspected the LDO regulator, but it turned out to be a reverse protection diode. I don't have SMD diodes, but there was enough space to fit a similar DO diode 🎉
The VX8 is still a great radio, I also have one
#vx8 #yaesu #repair

OE1RFCOct 2, 2024
Hmm, APRS coverage in central London seems to be basically nonexistent, also no stations at all my Vx8 could decode on 2m.
OE1RFCSep 24, 2024
Ars TechnicaSep 24, 2024

False memories planted in ChatGPT give hacker persistent exfiltration channel

Emails, documents, and other untrusted content can plant malicious memories.

https://arstechnica.com/security/2024/09/false-memories-planted-in-chatgpt-give-hacker-persistent-exfiltration-channel/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social

Hacker plants false memories in ChatGPT to steal user data in perpetuity

Emails, documents, and other untrusted content can plant malicious memories.

Ars Technica
Show threadOE1RFCSep 23, 2024
@F4JWJ @dynode yup, it's AFSK over FM, just like any direct FM frequency
OE1RFCSep 22, 2024
@m0rpk thanks, we totally forgot about Bletchley Park!
OE1RFCSep 22, 2024
Hello UK hams, we're visiting the UK (London, Cambridge, Canterbury) the first two weeks of October. I'm planning to bring an FT817 if luggage allows, are there any things to visit we should not miss?
Show threadOE1RFCSep 22, 2024
@on1arf @M0YNG obviously for bulk-flashing them to OpenWRT to be used in mesh networks :) Flashed quite a lot of those in 2006-2009ish, stacking also helped when putting them into boxes to be connected to different sector antennas ;)
But generally Linksys also built other networking hardware (iirc VPN gateways and switches, not sure about modems) in the same form factor that would have made sense to stack.
Show threadOE1RFCAug 30, 2024
@VE2UWY i have one of the same, identical packaging when shipped to europe ;) I also got a PL middle isolator via ali and usually mount it to a manfrotto superclamp with M10 insert, works quite well for me.