<br /><h3><span>HCDR</span></h3>
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<p>The top tier in the Bowman series of radios is provided by the <a href="http://en.wikipedia.org/wiki/Ultra_high_frequency" title="Ultra high frequency">UHF</a>, <a href="http://en.wikipedia.org/wiki/Mobile_ad-hoc_network" title="Mobile ad-hoc network">Mobile ad-hoc network</a> <b><a href="http://en.wikipedia.org/wiki/High_Capacity_Data_Radio" title="High Capacity Data Radio">ITT UK/VRC340 HCDR</a></b> (High Capacity Data Radio), a 'Bowmanised' version of ITT's Mercury <a href="http://en.wikipedia.org/wiki/NTDR" title="NTDR">NTDR</a>
(Near-Term Data Radio) wide-band networking transceiver. HCDR has a
225-450 MHz operating frequency range. It has wideband (5 MHz) and
narrow band (500 kHz) modem configurations, with a user rate of 288
kbit/s on a 375 kbit/s channel and 576 kbit/s on a 750 kbit/s channel.
Some 3,600 HCDRs are being supplied. HCDR provides a self managing
mobile Internet Backbone using standard RFC interfaces and routing
protocols.</p>
