Advanced VLF-HF Receiver

Product category :Naval Systems

Very Low Frequency (VLF) is the means of long-range reliable communication from Indian mainland to distributed ships and submerged submarines. Indian Navy established a VLF Transmitting station at INS Kattabomman for this purpose. Limited bandwidth of the large transmit antenna is a major challenge in achieving enhanced information transfer rate over this link. Advanced VLF Communication system is a solution to this challenge which is able to achieve reliable text data communication up to 400 bps in available 200 Hz bandwidth by use of modern communication signal processing techniques. The system has the dual capabilities of MSK Demodulation in VLF mode and HF reception in HF mode. QUALITY.

TECHNICAL SPECIFICATIONS

Frequency bands : VLF Band, MF Band and HF Band
Encryption : In-Built High Grade Digital Encryption (VLF Data)
Type of Operation : Simplex
LO Frequency Generation : By Direct Digital Frequency Synthesizer Resolution Frequency
Resolution : 1Hz
Input Impedance : 50 Ohms
Demodulation Mode
- VLF Mode – MSK, GMSK, OOK
- HF Mode – USB, LSB, AM, CW
Data Transfer Rate
- VLF Mode : 50 Baud to 400 Bauds
- HF Mode : 50 Baud to 2.4 Kbps (with HSDM)
Audio Output : 800 mW across 8 Ohms
EMC/EMI : 461E
Input Power Supply : 100V – 240V, 47 – 63 Hz
Environmental : As per JSS55555:2000 Revision No. 2(Class N1)