VRD3000 - 3,000 W NON-DIRECTIONAL RADIO BEACON TRANSMITTER

Improved system flexibility

Frequency agile with no additional parts required
Transmitter supplied with or without cabinet
Switch mode power supplies generate the required DC voltage from 170 V ac to 270 V ac, 50/60 Hz without need for adjustment
User-friendly microprocessor controlled keyer capable of programmable generation of 1,2,3 or 4 Morse letters or numbers, frame length 4 to 20 seconds, sequence repetition and standby codes
Various remote interfaces available, such as RS232, RS422, USB, modem and optically isolated inputs with dry relay contact outputs

Antenna current and field strength remain constant with use of transmitter/ATU control link, automatic resistive matching and reactive tuning (when used in conjunction with a Nautel ATU-HP automatic tuning unit)
Broadband, hot-pluggable power module
Maximum redundancy and duplication options including dual: power modules, Direct Digital Synthesis (DDS) exciters, low voltage power supplies, modulator drivers, keyers and monitors.
Optional DC back-up operation

Complete transmitter/ATU remote control and monitoring including fault analysis down to replaceable module level
Graphic user interface and soft-keys provide simple menu control of operating modes
LED diagnostic status flow diagram, an advanced control, alarm and 256 event time stamped logging system allows service personnel to easily identify problems to the field replaceable module level
Compliant with IEEE C95.1-1999 and Safety Code 6
Field data indicates MTBF in excess of 3,000,000 hours for Nautel NDBs and ATUs