Previously, Link budget calculations for SATCOM have been presented for both downlink as well as uplink, where we discussed key parameter ‘SNR’ of any communication link. For details of SNR calculations, read here: Link budget calculations for SATCOM – Downlink …
For discussions regarding SATCOM downlink, read here: Link budget calculations for SATCOM – Downlink This post explains the mathematical equation used to calculate the SNR of SATCOM uplink, or in other words, SNR of ground terminal signal as received at …
We have presented link budget calculations for SATCOM downlink in a previous post, where we described mathematical equation to calculate input SNR of ground terminal (receiving system). For details, read here: Link budget calculations for SATCOM – Downlink. The SNR equations …
We have presented link budget calculations for SATCOM downlink in a previous post, where we described mathematical equation to calculate input SNR of ground terminal (receiving system). For details, read here: Link budget calculations for SATCOM – Downlink. The SNR …
Free Space means a propagation medium for electromagnetic (EM) signal such as space, air, or vacuum; whereas Free-Space path loss (FSPL) means the attenuation of EM energy as it propagates through free space. Mathematical modelling of FSPL assumes that following …
For discussions regarding SATCOM uplink, read here: Link budget calculations for SATCOM – Uplink This post explains the mathematical equation used to calculate the SNR of SATCOM downlink, or in other words, SNR of satellite signal as received at ground terminal. …
Gain Method: Noise Figure (NF) can be measured, with a spectrum analyser, by using a procedure called Gain-Method. Note that following condition needs to be met by the Device-under-Test (DUT) for correct measurement: DUT (e.g., Receiver) output noise floor should …
In the previous blog, we discussed about the first drawback of the Heterodyne transmitter which is DC offset. The second drawback is Mixing Spurs, which will be discussed in this blog. What is Mixing Spurs? In simple language, if there …
Heterodyne Transmitter Heterodyne Transmitter is a two-step upconversion, just like heterodyne receiver which is a two-step downconversion. Read about the heterodyne receiver. This structure involves two steps of mixing and there is no oscillator pulling problem, however, just like other …
In this blog, we will explore individual Phase-Nosie contributors in a Phase-Locked Loop, how they get shaped by closed loop, and how they combine to produce typical Phase-Noise profile of a PLL. This fundamental understanding is vital in optimizing Phase-Noise …