Radiocom 2000: Difference between revisions

Content deleted Content added

Inline

Revision as of 23:13, 1 September 2024

Radiocom 2000 is a French transportable mobile telephone network launched in 1985 which gradually replaced the analogue "public correspondence" network. It was deployed by France Telecom Mobiles. It is classified in the category of first generation mobile networks (1G).

Operating in the VHF frequency band, the network used digital technology for signalling and analogue modulation for voice. Frequencies were dynamically allocated according to needs.

Faced with the growing demand of subscribers, several frequency bands were used on the Radiocom 2000 network, in particular the 200 MHz and 160 MHz bands in the Île-de-France, Lyon and Marseille regions as well as the 175 MHz band (specific subscription called "Radiocom 2000 VHF A/B") from 1990 in the north-eastern quarter of France. To meet the demand for additional capacity, from 1990 mobiles became dual-band 400/900 MHz, developed by Matra, Mobitel and Sagem as manufacturers. Alcatel and Nokia distributed these same handsets via their respective brands.

It was with Radiocom 2000 that the first notions of cellular telephony appeared with, shortly after its launch, the appearance of the handover called "High Density Network" RHD (capacity to change cells dynamically) and the allocation of frequencies within a cell. The network covered almost the entire territory. The subscriptions offered could be regional: Île de France, Lyon Region, Provence-Alpes-Côte d'Azur, Provincial and National.

Handsets used rechargeable Nickel–cadmium battery batteries. The antenna was smaller than that of a terminal from the early 1980s, but the terminal was still bulky and prohibitively expensive (with a device and subscription rental).

In 1988 it had 60,000 subscribers and more than 90% of the devices were installed on board vehicles. That same year, competition appeared with the birth of the Société française de radiotéléphones (SFR), using the NMT-F ( Nordic Mobile Telephone "French") standard.

Notes et références

External links

L2L1: The history of the mobile phone in France - in French

Telecommunications portal

This article related to telecommunications is a stub. You can help Wikipedia by expanding it.

@@ Line 6: / Line 6: @@
 Faced with the growing demand of subscribers, several frequency bands were used on the Radiocom 2000 network, in particular the 200 MHz and 160 MHz bands in the [[Île-de-France]], [[Lyon]] and [[Marseille]] regions as well as the 175 MHz band (specific subscription called "Radiocom 2000 VHF A/B") from 1990 in the north-eastern quarter of France. To meet the demand for additional capacity, from 1990 mobiles became dual-band 400/900 MHz, developed by Matra, Mobitel and Sagem as manufacturers. Alcatel and Nokia distributed these same handsets via their respective brands.
-It was with Radiocom 2000 that the first notions of cellular telephony appeared with, shortly after its launch, the appearance of the [[Handover]] called "High Density Network" RHD (capacity to change cells dynamically) and the allocation of frequencies within a cell. The network covered almost the entire territory. The subscriptions offered could be regional: Île de France, Lyon Region, [[Provence-Alpes-Côte d'Azur]], Provincial and National.
+It was with Radiocom 2000 that the first notions of cellular telephony appeared with, shortly after its launch, the appearance of the [[handover]] called "High Density Network" RHD (capacity to change cells dynamically) and the allocation of frequencies within a cell. The network covered almost the entire territory. The subscriptions offered could be regional: Île de France, Lyon Region, [[Provence-Alpes-Côte d'Azur]], Provincial and National.
 Handsets used rechargeable [[Nickel–cadmium battery]] batteries. The antenna was smaller than that of a terminal from the early 1980s, but the terminal was still bulky and prohibitively expensive (with a device and subscription rental).