I have my SBS running on all day and night and its better than the TV some days !
I have a simillar range to G6 UXU even with a pole up the chimney, to many hills surround my location
I do take it out when the weather is clear (and warm) sometimes to Pole Hill where the range leaps to over Holland and the number of contacts reaches 190-230.
Bought a net book this year with a battery life of 9 hours so I could leave it running in the car all day - used it at Duxford twice, RIAT, LHR and at work in Liverpool several times. Added an extra extended battery with 12-15 hours running
