Receiver Exciter

Alternate Text

Meltronics HF SSB System provides a MS 2000 reliable voice radio communication over 2 to 29.9999MHz frequency range and it is designed to meet most diverse requirements. The HF (High Frequency) System is used to establish Communication between Air to ground station, Air to Air and Air to ship. This system is suitable for Aircrafts, Helicopters and Ships Communication Applications. The HF Transceiver has Beyond Line Of Sight communications providing both voice and data services. System is a digital, microprocessor controlled, synthesized unit that utilizes DSP technology to increase performance and versatility


SERVICE REQUEST



The HF System has the following Sub Systems
  • Cockpit Mounted Control Unit
  • Receiver Exciter
  • Power Amplifier

MS 2000

Product Highlights
  • Frequency of operation: 2 to 29.9999MHz
  • Channel Spacing: 100Hz
  • Modes of Operation: CW and Clear voice USB / LSB / AM with normal or secure communication
  • Microprocessor based and LSI component design
  • Direct Digital Synthesis (DDS) technology for fast tuning
  • Digital Signal Processing (DSP) for modulation and demodulation
  • BITE provides full functional check of the system in both TX & RX modes and provides quick, simple and economical maintenance
  • Single Side Band Suppressed Carrier and full AM (double side band plus carrier) modes of operation are selectable for both transmission and reception
  • SELCAL function and Narrow Band Secure Voice mode of operation
  • Communication Interface with system: MIL 1553B/RS485
  • Fast automatic tuning (Stabilization time): Less than 1 minute
  • 100 Pre programmable channels
  • Power Supply : 28V DC

Alternate Text

Receiver Exciter

Receiver Exciter is used to receive and transmit HF range signals & processing HF signals into voice and data format using DSP technology. It consists of high quality HF receiver and HF exciter. System has SELCAL and secure communication features. System has configuration facility for Frequency range, mode of operation (AM, LSB, USB, DATA, CW), volume, squelch level from external control unit. The exciter produces the low power signal which is fed to the power amplifier unit.


MS 2010

Transceiver Specification:
  • Frequency Range : 2.0000 MHz to 29.9999MHz
  • Power Supply : 28V DC
  • Modulation : CW and clear voice (USB/LSB/AM), Secure voice & SELCAL
  • Input impedance : 50 ohms
  • Sensitivity for 10dB min (S+N)/N : CW / SSB: 0.7µV, AM: 2.5µV
  • Interface to Controller : MIL 1553B & RS 485
  • Audio Output : NLT 50 mV into 150 ohms/ 600 Unbalance
  • Audio distortion : NMT 5%
  • Squelch : Adjustable for (S+N)/N = 5 to 20 dB
  • Volume : Minimum 20 dB variation
  • Single Side Band Suppressed Carrier and full AM (double side band plus carrier) modes of operation are selectable for both transmission and reception
  • SELCAL function and Narrow Band Secure Voice mode of operation
  • Communication Interface with system: MIL 1553B/RS485
  • Fast automatic tuning (Stabilization time): Less than 1 minute
  • 100 Pre programmable channels
  • Power Supply : 28V DC

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