SOFTWARE DEFINED RADIO (SDR-1: VUHF +L-BAND)

General Description
Product Specifications
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Product Manufacturer
Hindustan Aeronautics Limited (HAL)
Designing/Manufacturing agency
Designed & Developed by SLRDC
Product Description

Software Defined Radio (SDR-1) is designed and developed by SLRDC. SDR-1 operates in two RF channels one in VUHF band and one in L-band. A dedicated Guard Receiver is available in VUHF band. It also has TRANSEC and COMSEC features in both the RF channels and built-in GNSS receiver. SDR-1 is capable of hosting different waveforms ranging from Legacy AM &FM to Frequency Hopping (FH) Voice and Mobile Adhoc Networking (MANET) with FH Dynamic Time Division Multiple Access (DTDMA). SDR-1 has necessary interfaces like MIL-STD-1553B/ARINC 429, Ethernet, RS-232, and RS-422 for Data and Control. Integrated GUIs for various mode selections and waveform loading are available for ease of operation of SDR-1. SDR-1 is intended to provide secure and jam resistant voice and data communication for Air to Ground, Ground to Air and Air to Air in VUHF and L bands. System architecture supports red & black separation. It is suitable for any high speed, high dynamic airborne platforms and Ground applications. The features currently available are not limited and are expandable in terms of Waveforms as well as RF Operating Bands.

Features/Roles/Variants of the product
Frequency Bands: 30 - 406.1 MHz (VUHF); 960-1240 MHz (L-Band);
Legacy Waveforms: AM and FM voice
TRANSEC : frequency hopping of 500 Hops/s ECCM Voice waveform
COMSEC: Secure voice and data.
MANET: Dynamic TDMA with the Fequency hopping of 600hops/sec
Free/Fixed Text, Image Transfer capability.
Suitable for Net Centric Operations.
Built-in GNSS receiver and Built In Test Facility- POST, CBIT, IBIT.
Pilot selectable modes through MFD.
Efficient Time and Frequency Synchronisation schemes.
Robust Modulation and Forward Error Correction schemes.
Ethernet based user Data Interface.
Modular Architecture.
Spare 3U VPX Crypto slot.
Digital Processing resources Available for future growth potential.
Product Specification
Dimensions
Size - 384 (D) 226 (H) X 141 (W) with Mountng Tray
Weight - 12KG
ELECTRICAL SPECIFICATIONS
Power Supply - 28V DC
Power - RX: 250W(max)
Consumption - Tx: 700 W(max) (2 RF heads opera onal)
INTERFACE
Control - MIL-STD-1553B /ARINC 429
Data - Ethernet
Others - RS-232, RS-422
HEALTH MONITORING
Built In Test - POST, CBIT, IBIT
COMPLIANCE
Power Supply - MIL-STD-704D EMI/EMC MIL-STD-461E
Environmental - MIL-STD-810F
TRANSMIT POWER OUTPUT
VUHF AM - 10 Was
VUHF FM &Secure - 20 Was
UHF MANET - 20 Was
L Band MANET - 50 Was
PLATFORMS -
Fighters, Trainers, Helicopters, Transport, Ships and Ground -
RF SPECIFICATIONS
VHF - 30 -88 MHz (LAND FORCES) - FM | 118 – 155.975 MHz (A/C COMM) - AM /FM | 156 – 173.975 MHz (MARINE BAND)- FM | 118 – 173.975 MHz - SECURE VOICE
UHF - 225 – 399.975 MHz (A/C COMM) | AM /FM VOICE . | SECURE VOICE | ECCM 500 HOPS/SEC VOICE | Mobile Adhoc NETworking (MANET) with mulplexed voice and data
Data Rate - 600Kbps, Hop rate: 600Hops/Sec
L-Band - 960 -1240 MHz (Data) | • Mobile Adhoc NETworking (MANET)
Data Rate - 1 Mbps, Hop rate: 600Hops/Sec
MANET
Specificaons - Masterless Dynamic TDMA | Runs on 600 Hops/sec Frequency Hopping | 600 Kbps &1 Mbps data throughput | Unicast, Mulcast and Broadcast | Text messaging, Data and Images | 40 Nodes per network | Dynamic node join/leave capabilies | Dynamic Slot Allocaon | Network Update rate of 10 Hz | Relay and Roung: 3Hops(2 Relays) for ata and 2 Hops(1 Relay) for voice | Automac Time and Frequency synchronizaon mechanism (GPS Denied) | Maintains Network for > 8 hours without GPS Simultaneous Operaon Of VUHF And L-Band RF Heads.
Contact : prasenjit[at]hal-india[dot]co[dot]in