Using software spectrometer to ensure VLBI signal chain reliability

TL;DR

This paper demonstrates how a software spectrometer, originally designed for spacecraft tracking, can be effectively used to verify the reliability and phase stability of VLBI signal chains, simplifying testing procedures.

Contribution

It introduces a novel application of SWSpec for VLBI signal chain testing, reducing setup time and complexity compared to traditional hardware methods.

Findings

SWSpec effectively tests VLBI signal chain reliability.

Using SWSpec saves time during pre-operations.

SWSpec simplifies the testing process for VLBI systems.

Abstract

Software spectrometer (SWSpec) developed for spacecraft tracking can be used to assure VLBI signal chain reliability, and phase stability of a VLBI receiver. Testing performed with SWSpec during pre-operations both saves time, and eases the tests as one does not need to gather, couple and setup the hardware.