ICOM Publishes Case Study for an Internal Emergency Communication System at Yamaha Motor Company

ICOM Japan has just released a new case study for an internal emergency communication system using the IP502H, IC-SAT100 and IC-DU65B transceivers.

ICOM said thht the new communication system plays the core role in disaster countermeasures with IP transceivers, Convenience transceivers, and Satellite transceivers.

An annual disaster management training is conducted by YAMAHA MOTOR CO., LTD, involving an estimated 18,000 individuals, including members of group companies. Furthermore, communication training is carried out monthly among all 18 locations, including the headquarters. Historically, training involving digital convenience transceivers was accompanied by frequent communication interruptions.

MS. Ai Matsushita - Technical Expert at the EHS Group Health and Safety devision said:

"We attempted to resolve the issue internally by increasing the quantity of convenience transceivers, incorporating additional antennas, and so forth, but to no avail. We therefore initiated communication with Icom regarding our existing communication system. Field surveys revealed that the simultaneous operation of a multiple of eight antennas installed on the rooftop led to intermodulation and sensitivity suppression. This resulted in disruptions to communication."

On the basis of the findings of an investigation into diverse communication systems aimed at resolving the issue, an outdoor wireless LAN strategy was proposed. It was determined that the system would utilize IP502H IP transceivers, which are capable of delivering stable communications over the mobile phone network, in addition to IC-DU65B Convenience transceivers and IC-SAT100 Satellite transceivers.

Furthermore, an appealing aspect of this system is that it enabled the continued utilization of pre-existing IC-DU65B transceivers in a different configuration.