ISD-1 (2.746.018-01)
indicator
Description
ISD-1 Distance Indicator Overview
The ISD-1 is an aircraft distance indicator used as part of the SD-75 / SD-75M onboard distance measuring equipment (DME). The unit provides visual indication of the distance between the aircraft and a ground-based transponder beacon. It is designed for installation in cockpit instrument panels and ensures reliable operation in aviation environments.
Full descriptionCollapse description
ISD-1 Measurement Function
The indicator displays real-time distance data received from the onboard DME system. Information is transmitted in digital form and converted into a visual numeric display. The unit ensures fast response and accurate representation of distance, supporting navigation and approach procedures.
ISD-1 Display and Operation
The device uses a digital display system (LED or gas-discharge depending on version). In the absence of signal, the display shows dashes, while system faults are indicated by blinking digits. The unit supports built-in test functions allowing quick operational checks before flight.
ISD-1 Aircraft Application
The ISD-1 is used on various aircraft and helicopters equipped with SD-75 systems. The system allows connection of up to two indicators simultaneously, providing redundancy and improved cockpit ergonomics for navigation monitoring.
Related instruments: PNP-72-12, PNP-72-14, PNP-72-4M. These links are grouped by type and system and do not indicate interchangeability.
Technical details
- Product Type
- Aircraft distance indicator
- System / Equipment
- SD-75 / SD-75M DME system
- Function
- Visual display of distance to ground beacon
- Measurement Range
- 0.5 – 600 km
- Units of Measurement
- Kilometers (km) / Nautical miles (NM)
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- Display Type
- Digital (LED or gas-discharge)
- Response Time
- ≤ 1.5 seconds
- Number of Indicators in System
- Up to 2
- Signal Interface
- Digital serial signal input
- Standards Compliance
- ICAO, ARINC-568, GOST 18977-79
- Operating Features
- Built-in test, fault indication, signal absence indication
- Technical Documentation
- ISD-1 Technical Passport
- Russian designation
- ИСД-1 (2.746.018-01)
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms






