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docs/radiocom2000.html

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 History
 </p>
 
+<p>
+Radiocom 2000 (sometimes R2000) was a cellular network used in France.
+The network was developed by France Telekom and Matra and became the third mobile network.
+There are many similarities to the NMT network, but it was a complete own design.
+Development started in 1981 and the network was launched in Paris in 1985, it gradually replaced the second network "correspondance publique".
+It was a cellular system, so frequencies could be used efficiently.
+The system was capable of allocating channels dynamically.
+Handover was implemented later and called RHD "R&eacute;seau Haute Densit&eacute;" (network with high desity).
+It was possible to run private base station, where own mobiles were allowed to call only.
+In 1988, it had 60,000 subscribers and more than 90% of devices are installed in vehicles.
+Originally the 200 MHz and 400 MHz bands were used.
+Due to congesting in 1990, the 900 MHz band was introduced.
+The network was closed for the exclusive benefit of the standard GSM in July 28th 2000.
+</p>
+
+<p>
+<ul>
+	<li>Frequency range UHF: 424.800 - 427.9875 MHz (down-link); 414.800 - 417.9875 MHz (up-link)
+	<li>256 voice or contol channels
+	<li>Duplex distance: 10 MHz
+	<li>Channel spacing: 12.5 KHz
+	<li>Voice modulation: FM
+        <li>Signaling modulation: carrier FSK
+	<li>Frequency deviation: 1500 Hz ??? (Voice); 1425 Hz (FSK)
+	<li>Mobile station transmit power: 1 or 6..10 Watts
+	<li>Features: Speech Compandor (BS-&gt;MS only), Group calls
+</ul>
+</p>
+
+<p>
+</p>
+
 <p class="toppic">
 <a name="howitworks"></a>
 How it works