(pre Nokia) Mobira 1320 retro 1980's brick phone.

This is one of the first handheld mobile cellular phones, The Mobira 1320, which was made in 1987.

Nokia - Mobira mobile phones used Soviet leader Mikhail Gorbachev in their 1987 advertising campaign. He was pictured using a Nokia Cityman, of the same basic design and appearance of the Mobira 1320, to make a call from Helsinki Finland, to his communications minister in Moscow.

'1320' refers to the number of channels available on the 900Mhz analogue network frequency, now discontinued. Analogue mobile networks were replaced by the digital GSM (Groupe Spécial Mobile) 900Mhz and 1800Mhz frequency networks in the mid to late 1990's.

Digital is a more secure method of communication, as voice calls and text messages are sent in the form of a binary encoded transmission, which is decoded by the receiving phone. The old Analogue system was vulnerable to people listening into voice calls using simple radio frequency scanning equipment.
The first UK mobile network providers were Vodac (later Vodafone) and British Telecom (later BT Cellnet then O2). Both originally used the 900Mhz Analogue bandwidth, and still do on digital.
Orange, T-Mobile and Virgin were assigned to a new higher 1800Mhz frequency with all 3G and HSDPA (High Speed Downlink Packet Access) mobile broadband communications using 2100Mhz.

Category:

Science & Technology

Tags:

• Nokia.
• Mobile
• phone
• cell
• cell phone

[longpro2123]

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