OLT (mobile network)

This article will address the topic of OLT (mobile network), a concept that has gained relevance in recent years due to its impact on various aspects of daily life. Since its emergence, OLT (mobile network) has captured the attention of experts and the general public, generating debates, research and different interpretations. Over time, OLT (mobile network) has become a topic of interest both in academia and in daily conversation, and its influence has spread to multiple areas, becoming a fundamental reference point for understanding current phenomena. In this review, different perspectives on OLT (mobile network) will be explored, in order to provide a broad and enriching vision of its relevance and impact on contemporary society.

OLT (Norwegian for Offentlig Landmobil Telefoni, Public Land Mobile Telephony), was the first land mobile telephone network in Norway. It was established December 1, 1966, and continued until it was obsoleted by NMT in 1990. In 1981, there were 30,000 mobile subscribers, which at the time made this network the largest in the world.

The network operated in the 160 MHz VHF band, using frequency modulation (FM) on 160-162 MHz for the mobile unit, and 168-170 MHz for the base station. Most mobile sets were semi-duplex, but some of the more expensive units were full duplex. Each subscriber was assigned a five digit phone number.

In 1976, the OLT system was extended to include UHF bands, incorporating MTD, and allowing international roaming within Scandinavian countries.