ANALISA PERHITUNGAN LINK BUDGET SISTEM KOMUNIKASI ANTAR PELABUHAN MENGGUNAKAN KANAL HF

Sari

Indonesia is the world largest archipelagic state where its sea territoty is very broad, stretches from
Sabang to Merauke. Regarding that, Indonesia requires an effective inter-island communication system.
Moreover, the need for wireless communications is very high so it requires a wireless communication network
planning. In the process for planning a maritime wireless communication system, it needed a link budget
calculation. Link budget calculation has an important role in order to design communication networks so it can
achieve optimum results and efficient both in terms of technical reliability and cost. In relation to that, this paper
discuss about link budget calculation of communication system between Port of Tanjung Perak Surabaya and
Port of Soekarno-Hatta Makassar using High Frequency (HF). High Frequency Radio (HF Radio) widely used
for long distance communication. HF Radio communication in maximum condition was affected by many
things, such as location, frequency and transmitting time. Beside that, it can also be affected by interference of
ionosphere. This paper discuss about calculation of received power with using three types of antenna transmitters
and three types of antenna receiver. The smallest receiving power is when HF Radio communication being used
in elevation angle 18,1° at noon and 29,5° at night. The results of this calculation can be said that the best
transmitter antenna and receiver antenna is pairing of CV430B and 258F-1 because its margin value is the best
among the other antennas.