Adding RAM is always good BUT it won't help your reception. The problem is that lovely aluminum case reduces the efficiency of the built in antenna. Powerbooks are notoriously bad at reception. Try repositioning the base station closer to the work area, or trying different orientations. There are some third party antennae you can buy for the Powerbook but it involves snaking a wire out through the PCMCIA dock and affixing an antenna to the outside of the machine, not elegant. Investigate options for boosting the antenna on the base station if it is one with a replaceable antenna.