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Radio Control your Digitrax system.
The new Digitrax Radio System was developed specifically for the Digitrax Chief and Empire Builder starter sets. The system is composed of two basic components, the DT-100R dual throttle and the UR-91 (Universal Radio Receiver). As with all of the Digitrax products two major considerations were kept in mind:
  1. The Radio System must be compatible with existing systems.

  2. The Radio System is 100% compatible with both the Chief,  Empire Builder and Big Boy Starter Sets.

  3. The price must be cost effective.

In an effort to keep the system cost effective, the Radio System has been designed as a simplex system, this means that the DT-100R only transmits to the UR-91 receiver. This enabled Digitrax to sell the system for about 1/2 the cost of a full duplex system.
98% of all the communications between the two devices is from the DT-100R (Throttle) to the UR-91 (Receiver), this would include all speed changes, function changes (turning lights on and off), direction changes and of the selected train.
2% of the communications are from your booster to the throttle, these are when you acquire a locomotive (select a new address for a throttle), or when you are creating a consist of locomotives (MU/ multiple unit consist). When these operations are necessary the DT-100R must be plugged into LocoNet to perform them.
 

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Last modified:  August 11, 2008