Last week, Chris, G7JGE and I had some problems using GB3WH on our commuting journeys. We're both well to the east of the main part of the coverage area and were really struggling to have a QSO.
Yesterday, I spoke to Rob, G4XUT who's on the committee of the Ridgeway Repeater Group and he said that a problem had been found on the antenna/feeder. Fortunately, another antenna and feeder were available, so last Friday, GB3WH swapped from an end fed antenna to a folded dipole, slightly lower down the mast.
Coverage has changed slightly - interestingly, Mike, G0UWU noted that the repeater is now stronger in the Gloucester area.