LF: 630m Spain

["Federico" <ea2hb@telefonica.net>]

I've been three weeks calling CQ on the frequency of 472.5 kHz between 17 and 17.30 UTC
and listening to the band at different times of day without result.
Keep calling CQ between 17 and 17.30. I would appreciate even if negative controls.
My signals at 20 km are strong and clean.
A possible correspondent at 80 km, is fighting a strong local QRM.
My signal does not activate the RX of Twente.
My power is close to the maximum allowed.
Federico EA2HB