ZL to Europe dark path assessment
ZL6QH is intending to transmit for all hours of ZL darkness, using 137.7898 kHz with + and - 0.2 Hz frequency shift, on 1 December 2001. ZL sunset is 0800 UTC and sunrise 1658 UTC. A time sequence for European countries can be assessed from the list below, which shows nominal sunrise times in the first list, and nominal sunset times in the second list. Obviously it is a simplification to give a single time for any country, and individuals can make specific assessments of dark time windows with ZL for their particular QTH.
Czech Rep. 0658
Spain (west) 0753
ZL sunset at 0800 (no DX before this?)
(then all of Europe is in daylight, so no LF DX until sunset?)
Sunset time in European country
Czech Rep. 1505
Spain (west) 1653
ZL sunrise at 1658 (no DX after this?)
The the direction of a "grayline" across Europe for sunrise is quite different than for sunset. The antipode region for ZL is Portugal.
There appear to be two dark path opportunities for the British Isles, before local sunrise and after sunset on Saturday 1 December. Northern Scotland may be the "best" place.
Most of mainland Europe appears to have only one opportunity, at and after sunset on 1 December.
In any case, and whatever path is taken, it is a rather long shot.
73, Bob ZL2CA