The EHTX-0401 is a 4-output digital transmitter that directly up-converts baseband signals to HF and low-VHF. It was developed out of a need for a highly linear transmitter with multiple outputs for RF Surveillance, Direction Finding, and Signal Improvement. Though adapted for HF and low-VHF signals, the EHTX-0401 can be reconfigured for mid- to high- VHF signals.
The EHTX-0401 digital transmitter is hosted on a 4DSP platform consisting of the PC720 Kintex-7 PCIe card and the FMC204 4-Channel 16-bit DAC board. Signals from the 4 RF outputs can be used for multi-channel processing, beam forming, or any other application requiring multiple RF outputs. With its 10 MHz reference input, the digital transmitter can upconvert baseband signals to RF signals from 2 MHz to 62 MHz with signal bandwidths from 7 kHz to 1.9 MHz. Boasting an output SNR of 75 dB and an SFDR of 90 dB, the EHRX-0401 can be used in applications requiring highly linear upconverters.
- FPGA-core design, testing, documentation, and production
- Digital Signal Processing (DSP) design including digital up-converters (DUC), numerically controlled oscillators (NCO), and finite-impulse response (FIR) filters