Newfoundland

How to read the charts

The chart shows the best frequency to use. The "hotter" the slot, the higher the probability of making the contact on that band.
These are based on CW, 100W, dipole to dipole and a "good" reception. Adjust the reliability according to your own station. CW (Morse) offers a big advantage.

For more general charts see http://www.infotechcomms.co.uk/propcharts/

Newfoundland

Reliability/Band graph produced by VOACAP Online
This shows that to work the Newfoundland-based stations from within the UK, 30m (10 MHz) /40m (7 MHz)
are probably your best bets after dark and in the early morning/evening.
20m (14 MHz) / 15m (21MHz) are possibilities from about 1000 UTC until 1900 UTC.
Note the possible 10MHz openings early evening - I have never heard IMD
stations on 30m myself.