Top band DX-ing is real ham radio challenge. 160m is also referred as the "Gentleman's band"...
160 meters - DX-ing on the Edge...

Solar wind - Topband condx prediction?

16. ledna 2009 v 20:35 | Petr, OK1RP |  Operation topics

another interesting tips for Topband condx prediction coming from Ilmo, OH2BO (thanks to Greg, ZL3IX) as follows...

Ilmo Anttila wrote:

I do follow solar wind and dynamic pressure readings daily. To my opinion both of them indicate very well propagation on topband even better than A and K indexes.
Good rule of thumb is, if solar wind speed is less than 300km/s and dynamic pressure less than 0,5 nPa it is expected very good conditions to JA, NA and even direct over North Pole here in South Finland above 60 degrees North.


Ilmo, OH2BO

Orig.published on Topband mailing reflector

73 - Petr, OK1RP

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