Mastodawn

Solar Storm Scout 5m ago

☀️ X-RAY FLUX (5/5)
Past 6hr

Current: C2.7
🟢 SMALL FLARE

Minimal impact

Flare Classes: X=Major (HF blackouts) M=Medium (regional HF degradation) C=Minor (slight absorption) B=Weak (normal)
Red line=0.1-0.8nm Cyan=0.05-0.4nm. Spikes=flares causing radio blackouts. Higher flux=worse HF.

NOAA SWPC 19:30Z

#SolarStormScout #HamRadio

Solar Storm Scout 5m ago

🌌 AURORA FORECAST (4/5)
⚪ QUIET

Power: 10.0 GW
K-index: 0
Minimal

📻 Normal VHF

🟢Green=2m/6m scatter possible 🟡Yellow=Enhanced 🔴Red=Intense aurora
Point antennas north, use SSB/CW modes. Best during K≥4 activity.

#SolarStormScout #HamRadio

Solar Storm Scout 5m ago

📡 D-REGION ABSORPTION (3/5)
🟢 Low (Night)

⏰ Transitional - 19:30Z
💡 All bands good

Real-time HF absorption from solar X-rays
🔴Red=High (HF challenging) 🟡Yellow=Moderate 🟢Green/Blue=Low (HF good)
Higher absorption = lower frequencies work better

#SolarStormScout #HamRadio

Solar Storm Scout 5m ago

📻 BAND CONDITIONS (2/5)

160m: 🟢 Good
80m: 🟢 Good
40m: 🟢 Good
30m: 🟢 Good
20m: 🟢 Good
17m: 🟡 Fair
15m: 🟡 Fair
12m: 🟡 Fair
10m: 🔴 Closed
6m: 🔴 Closed

🎯 Best Now: 80m, 40m, 30m

Based on MUF=28.0MHz

#SolarStormScout #HamRadio

Solar Storm Scout 5m ago

☀️ SOLAR INDICES (1/5)

SFI: 99
A-index: 0
K-index: 0
foF2: 7.0 MHz
MUF (DX): 28.0 MHz
D-Layer: 3%

📊 NOAA Scales
📻R0 Radio Blackout
☢️S0 Radiation Storm
🧲G0 Geomagnetic Storm

#SolarStormScout #HamRadio

Karl Matthias 🇺🇦39m ago

I ordered Yageo resistors from Digikey along with other stuff. Haven’t ordered from them in a long time. They sent me the values that I ordered but all but one set of them are not Yageo resistors.

From a reputable supplier like Digikey, I am surprised and disappointed. I am trying to get them to send me the right ones (on principle) but it looks like from now on I’m back to Mouser, RS, and Farnell, who have never done anything like that. #HamRadio #AmateurRadio #Electronics

theconceptor 1h ago

🌏 Power grids and telecommunications networks are no longer as stable as they once were.

📡 The VHF/UHF narrowband communication concept: The system is designed as a physically and energetically self-sufficient alternative to modern, radiation-intensive, and power-hungry infrastructure.

🔋 The transceiver is inexpensive and easy to manufacture.

https://medium.com/@theconceptor/true-digital-self-sufficiency-communication-without-a-mobile-phone-network-48651393c784

#TechInnovation #MeshNetwork #Prepping #HamRadio #OpenSource #Resilience #DigitalDivide #RemoteAreas #CommunityNetworks

True digital self-sufficiency — communication without a mobile phone network

License: © 2026, [Dipl.Ing. Franz Kalchmair/VHF|UHF narrowband communication concept]. The technical, sustainable “VHF|UHF narrowband…

Medium

theconceptor 1h ago

📡🔋 True digital self-sufficiency: Communication without a mobile network!

🌏 This concept is especially well-suited for regions with poor or no infrastructure.

The solution also serves as a fail-safe emergency system.

🧭 For this use case, I've developed a fascinating, completely network-independent alternative solution.

#TechInnovation #MeshNetwork #Prepping #HamRadio #SolarEnergy #OpenSource #Resilience #DoItYourself #DigitalDivide #RemoteAreas #CommunityNetworks

EA1CS - DX Info 1h ago

( 𝗩Í𝗗𝗘𝗢 ) 𝟯𝗚𝟬𝗭, 𝗔𝗿𝗰𝗵𝗶𝗽𝗶é𝗹𝗮𝗴𝗼 𝗱𝗲 𝗝𝘂𝗮𝗻 𝗙𝗲𝗿𝗻á𝗻𝗱𝗲𝘇 https://buff.ly/ay69MzF #hamradio #dx #hamr

I've had a short look at #tilesontheair, a new #hamradio #portable program where you activate Maidenhead grid squares https://www.youtube.com/watch?v=_jBXYCBamn0

A look at Tiles On The Air

YouTube