- DEAL
New generation of Software Defined Radios employ waveforms which demand backing-off the Power Amplifier from its peak capacity. This limits the efficiency of the PA and poses thermal challenges in design, when packaged in a small volume.
These L-band and UHF-band Power Amplifiers have been designed and developed with collaboration IIT Roorkee. The UHF Power Amplifier design is based on optimum device selection which can provide high efficiency while achieving specified linearity requirements in terms of harmonics and IMD suppression The L-band Power Amplifier is optimized high efficiency operation at 3 dB back-off, apart from operation at saturation.
The L-band Power Amplifier is operating over the bandwidth of 960 – 1240 MHz and the UHF Power Amplifier is operating over the bandwidth of 290 – 320 MHz. These amplifiers are suitable for airborne SDRs, providing an optimal combination of power output, harmonic suppression and intermodulation suppression in a single package weighing about 3.5 kgs.
V/UHF Manpack SDR is a multi-mode, multi-rate software defined radio in the V/UHF bands. It is a small size man portable radio transceiver unit, specifically designed for ground to ground communication requirements. It consists of modular and re-configurable components of both hardware and software. It has SCA based Operating Environment, hopping / fixed frequency / point-to-point / networking / wideband / narrowband featured waveforms and Human Machine Interface (HMI) for platform / waveform configuration & management.
SDR-Handheld (SDR-HH) is a compact single channel UHF band SDR for marine commandos for secure speech applications. It provides a higher degree of flexibility to support Interoperability for Mission Requirements.
The Advanced Quad Diversity Modem provides high speed data with Gbps Ethernet IP connectivity. The Modem waveforms incorporate advanced technologies like OFDM, SCFDE, LDPC and Maximum Ratio Combining (MRC) to provide reliable network connectivity between command & tactical levels with data rate up to 20 Mbps in LOS & BLOS modes.
It has been designed to combat Long/short term fading behaviour of Channel. The Modem hardware, in compact SWaP optimized form factor, has been designed to incorporate upgrades to futuristic communication requirements of Defence forces. The product has been successfully developed.
The Data Link System is significant part of TAPAS (Rustom-II) MALE UAV which provides full-duplex communication between UAV & Ground Control Station. LOS communication is provided via C-band datalink whereas beyond LOS communication is catered through Ku-band SATCOM link.
The Secure & anti-jam Uplink carries aircraft command & voice information whereas the secure downlink comprises multi-sensor Hi-resolution payload data, multiplexed telemetry and voice.
The Ship-borne Data Terminal provides maritime surveillance and the Remote Video Terminal assists forward soldiers with accurate situational awareness and quick battlefield assessment.
S Band RF Modem
S band RF Modem is a single PCB solution based on SDR approach for complete RF transceiver and baseband signal processing with ultra-low power modem controller. This Board implements state of the art Direct RF conversion architecture enabling realization of low power and compact integrated S Band transceiver & programmable Modem hardware. It is compact in size of 50*45 mm and operates with 3.7V supply with power consumption of less than a Watt. This board is ideal for low power SATCOM applications operating in full duplex mode
Handheld Satcom Terminal (HST)
DEAL has developed Handheld Satcom Terminal (HST) for Indian Satellite i.e. GSAT-6. HST is the first Indian rugged satellite phone with built in security for both signalling and traffic. It has built-in navigation support and can be monitored at Hub. This battery operated terminal provides secure voice/data services anywhere within satellite footprint, making it suitable for all strategic and tactical applications.