Solar Wind: 534 km/s @ 3.0 protons/cm3 Bz: 2026 Apr 06 0403Z at 4.5 nT

Global HF Propagation Conditions for 0400Z on 05 May, 2021

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Aldir, PY1SAD is again active from Georgetown, Guyana as 8R1TM until May 10, 2026. QRV on all bands + 6m; CW, SSB + digital & SAT. QSL via eQSL, LoTW or Direct. Grid: GJ06vs.

Solar Flux: 118 | Ap: 12 | Kp 1.00

No space weather storms were observed for the past 24 hours.

Space weather for the next 24 hours is predicted to be minor. Radio blackouts reaching the R1 level are likely.

(0000 UTC) 6h hi C3.8(0151Z 04/05) 24h hi C3.8(0151Z 04/05)

SSN: 113 (04/04/2026)

Solar Wind: 517 km/s @ 2.0 protons/cm3 Bz: 2026 Apr 06 0127Z at 1.8 nT

Global HF Propagation Conditions for 0400Z on 05 May, 2021

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The following is a message from Open HamClock Backend contributor Chris Smith (G1FEF), with light editing by K4HCK:

Open Hamclock Backend is now fully independent of the original source and does not proxy any data from the Clear Sky Institute server. When the original backend server goes offline in June, anyone using OHB will find their HamClock will continue to work. We've also made some improvements over the original, especially in terms of CPU and memory use. It is now more efficient, so anyone hosting it on their own hardware will see instant improvements.

We have two more items of exciting news to share:

We now have a publicly available OHB server which anyone using HamClock is welcome to use. Just point your HamClock to: ohb.hamclock.app:80

This server is dedicated hardware hosted in a commercial datacenter and is free for all HamClock users to enjoy.

We also now have a website where you can keep track of the latest releases, find instructions on how to use OHB, see who is behind the initiative, as well as how to contact us to provide feedback and ask for assistance:

https://ohb.works/

Source: Open HamClock Backend

Solar Flux: 118 | Ap: 12 | Kp 1.33

Space weather for the past 24 hours has been minor. Radio blackouts reaching the R1 level occurred.

Space weather for the next 24 hours is predicted to be minor. Radio blackouts reaching the R1 level are likely.

(0000 UTC) 6h hi M7.5(0107Z 04/04) 24h hi M7.5(0107Z 04/04)

SSN: 113 (04/04/2026)

Solar Wind: 530 km/s @ 2.0 protons/cm3 Bz: 2026 Apr 05 2227Z at 0.3 nT

Global HF Propagation Conditions for 0400Z on 05 May, 2021