GNSS RF front ends & signal recorders
A configurable hardware family for ARAMIS real-time reception, RF/DIF recording and repeatable post-processing - from compact single- and dual-antenna units to an eight-channel rackmount platform.
PORTOS familyFront ends and recorders for ARAMIS
Model options
RF channels, center frequencies, bandwidths, sampling rates, clocking and interfaces are specified with the order. The A-number identifies the principal antenna-input configuration; it does not limit a unit to one RF frequency per antenna.
Compact · single antenna input
The smallest and least expensive PORTOS option for conventional multi-frequency SDR reception, RF recording, algorithm development and field measurements.
Compact · dual antenna input
A compact platform for two-antenna measurements, differential reception, reflectometry, orientation experiments and comparative signal studies.
Rackmount · up to eight antenna inputs
The high-channel-count platform for multi-antenna research, CRPA, coherent acquisition, ionosphere monitoring and GNSS-INS development.
Receiver and laboratory workflow
PORTOS down-converts and digitizes antenna signals, supplies the receiver-side RF/DIF streams, and can record them for later processing.
Live receptionAntenna → PORTOS → ARAMIS SDR receiver
Post-processingPORTOS recording → DIF files → ARAMIS or another compatible SDR receiver
RF playbackRecorded or simulated file → ReGen / Replicator playback hardware → receiver under test
Recording and RF playback are separate functions. PORTOS is not presented as a real-time retransmitter; ReGen with Replicator hardware provides the controlled RF playback or simulation path.
Channel architecture
PORTOS RF channels are specified for the required GNSS bands, sampling and bandwidth, then mapped to the appropriate antenna inputs.
One antenna may feed several RF paths through a splitter, while A2 and A8 configurations preserve separate antenna paths under a common clock. A8 provides up to eight configurable channels for the highest channel-count experiments.
Research applications
Acquire several antenna inputs under a common timing architecture for CRPA, direction finding, adaptive processing and antenna-array experiments.
Work with samples, baseband data, correlators and observables rather than being limited to a closed position output.
Configure the signal path and processing for propagation monitoring, amplitude and phase analysis, and multi-frequency studies.
Record RF environments for subsequent analysis and controlled RF reproduction using a separate ReGen / Replicator system.
Data & software access
With ARAMIS, PORTOS supports real-time receiver operation and post-processing from recorded data. PORTOS supplies the RF and digitized-IF path; ARAMIS supplies acquisition, tracking, observables and navigation processing.
Timing & integrated navigation
PORTOS configurations support external timing and synchronized IMU data collection for GNSS–INS development.
A dedicated adapter can transfer RS-422 IMU packets with the receiver data stream to the processing computer. The resulting dataset supports loose, tight and ultra-tight coupling research, algorithm comparison and repeatable post-processing.
Controlled record & playback
PORTOS records GNSS/RF signal environments for later analysis. Laboratory playback is performed independently by ReGen. The two units are intentionally unsynchronized and provide no real-time recording-to-transmission path.
See Simceiver™ and ReGen systems PORTOS A8 datasheetConfiguration enquiry
Tell us the frequencies, antenna count, bandwidth, sampling, timing, recording, software-access and IMU requirements. We will propose the appropriate PORTOS A1, A2 or A8 front-end and ARAMIS processing configuration.
Discuss a PORTOS system