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TDMA (Time Division Multiple Access) technology splits a radio channel into two alternating time slots. Time slot A transmits for a few milliseconds, then time slot B, then time slot A - and so on. Each time slot is a virtual radio channel. The transmitter converts 60 milliseconds of speech to a 'packet' of data that fits into a 30 millisecond time slot. The receiver unpacks the data and recreates the original speech message segment. Therefore, one voice call occupies only one of the two available time slots. The process is unnoticed by system users.
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Brand: MotorolaCondition: New
Why use digital TDMA? An analogue repeater will normally only carry one channel at a time, keeping out waiting callers whilst the channel is busy. This used to mean fitting a second repeater and aerial on a separate channel for other users, doubling your infrastructure and licencing costs. One DR3000 repeater can create two digital channels from your existing analogue channel.
Digital TDMA technology gives you more flexible call options, greater security, (preventing anyone with a scanner listening in) and the clearest speech calls we've ever heard on a portable radio.
Motorola DM3600 Digital Mobile Radio£456.00 £410.00
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