In november , a new frequency coordination agreement was signed between hong kong and guangdong on procedures and standards for coordinating terrestrial radiocommunications services in the frequency band from 30 mhz to 40 ghz 在十一月,本港和广东省就协调30兆赫至40吉赫频带地面无线电通讯服务的程序和标准一事,签订新的频率协调协议书。