You will probably not see a huge gain from the PB antenna. It will help that it is external, but those never performed well to begin with. I'd recommend a cheap omni-directional antenna. I've seen them shipped for less than 10 bucks on dealmac. They come with the appropriate plug and will work better, i think, than the PB one. It might be nice to splice the two sets of PB antennas together and install them both into the PB. It might help the range a bit.