Radio News | GB2RS | Rallies | Events | DX | Contests | Propogation | Local

RSGB PROPOGATION:

1 - 2
Propagation News – 29 June 2025Thu 26th Jun 2025 18:59 BST

The last week was good from a geomagnetic disturbance point of view. Up until Wednesday, the 25th, the Kp index had not been higher than 3.67, and had mostly been in the ones and twos. This helped HF propagation to a great extent. Sunspots have been present with the solar flux index sitting at 120 […]

Propagation News – 22 June 2025Fri 20th Jun 2025 12:44 BST

Last week we mentioned a large coronal hole on the Sun that might cause problems. The hole is so large that it is still Earth-centric seven days later. We had expected the hole to increase the Kp index due to the solar wind emanating from it. However, as of Thursday, 19 June, conditions remained quiet […]

Propagation News – 15 June 2025Fri 13th Jun 2025 12:10 BST

Propagation was a mixed bag last week with occasional Kp index rises but a solid solar flux index which hit 141 on Thursday 12 June. We also had some Sporadic-E short-skip conditions on the HF bands which brought some surprises. We are now in June so the summer HF doldrums are well under way. But […]

Propagation News – 8 June 2025Fri 6th Jun 2025 10:58 BST

Last week’s HF propagation was heavily influenced by unsettled geomagnetic conditions. This was caused by a combination of coronal mass ejections and a strong solar wind from a coronal hole. The coronal mass ejection, or CME for short, followed a solar flare from sunspot 4100 on the 31 May at 0005UTC. The explosion lasted more […]

1 - 2