Here are a few ways to increase the range of your walkie talkies: Larger antennas — The longer the antennas, the better the signal. Longer antennas can significantly boost the range of your two-way radios. Use a repeater — Using a repeater can drastically improve and enhance the range of your walkie-talkies. Good-quality batteries — Batteries can play a huge role in the performance of your walkie-talkies. The better the batteries, the higher the performance. Low-quality batteries or the ones with lower strength can impact the performance and signal of your walkie-talkies.