For frequency planning in communication networks, users are seeking software recommendations, particularly for microwave link site planning in the 3 GHz to 300 GHz range. Key considerations include the type of modulation, number of base stations, and network coverage area, with PSK modulation suggested for initial setups. Celplanner and Mentum Planet are noted as effective but costly options, each around $50,000 per license, while EDX is mentioned as a comparable alternative. Users are cautioned about using frequencies above 11 GHz due to potential rain fade issues. Efficient tools are acknowledged despite their high costs.