What do you mean "bad modem"? I'm new to Pixel and thinking about getting Pro 7.
My P6 does not have the best reception. Better than at launch with some updates, but still not the best. I've never lost a call, but there are times I can't data when my work iPhone can. I will be replacing my P6 soon, but I'm waiting to see what people say about the the P7/P7Pro with its newer modem.