Telerad Non Directional Beacons NDB

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The RBT 9300 NDB have been developped in order to meet the operational needs of the Civil Aviation regarding landing procedures. The equipment is compliant with I.C.A.O. requirements. The RBT 9300 equipment, associated with the ’’Umbrella’’ or ’’Daisy’’ terminal capacity antenna, constitute a low-cost simple installation, ’’Locator’’ type. Its performances are quite interesting since even at a very low altitude, significant carriers are obtained. We developed the study of this radio-beacon in order to hit the following targets :

• high performances and utmost reliability,
• fast, simple installation and easy setting into service,
• easy maintenance.

The NDB is synthesized, step 100 Hz. The output power is adjustable up to 100 W carrier on 50 ohms. Keyers are integrated in the transmitters. The identification signal may be transmitted in NON/A1A or NON/A2A. The equipment configuration (frequency – mode – code) is stored in EEPROM and can easily be modified from the change-over unit. Transmitter EBT 9300, specially developped for RBT 9300 NDB’s, can operate without being associated to the change-over unit BRB 9300 (single configuration).

The RBT 9300 equipment is composed of :

• 2 transmitters EBT 9300,
• 1 automatic change-over unit BRB 9300,
• 1 charger/power supply unit, single or dual (option),
• 1 18 U or 36 U rack designed to receive the equipment above.