bad signal on my mobile

[Jillius]

We can only get Orange where we live but everyone in our house gets a good signal but I can only get one if I go upstairs and then it's really weak. :-(
Any ideas why ??

[mrrossi]

try putting your chip in another phone see if signal is better, you might find the ariel is not much cop in your phone

[Jillius]

Tried that and it was just the same. Could it be a problem with the sim card rather than the phone ?