Showing posts with the label frequency

What is Voltage Standing Wave Ratio(VSWR) in Radio Frequency?

Standing waves are an important issue when looking at feeders / transmission lines, and the standin…

Logical and Physical Antenna Ports of 5G NR Antenna Ports

In 5G NR or 4G LTE, Multiple Input-Multiple Output (MIMO) transmission is a key technology specific…

Frequency Bands 5G NR (New Radio)

Recently, 3GPP has freezes specification for 5G NR and TS 38.104 section 5.2 provides the list of b…

What is the difference between FDD-LTE and TDD-LTE?

Before we compare what difference between FDD and TDD LTE so let's understand what is FDD and T…

What is Mean Square Error for Microwave Links ?

Mean Square Error (MSE) is similar to Signal-to-Noise Ratio (SNR) except that it accounts for disto…

Why use Space Diversity in Microwave Links?

Long distance Microwave Links often use Space Diversity to ensure reliable communications between t…

What is QAM in Radio Microwave Link?

Quadrature amplitude modulation (QAM) including 16QAM, 32QAM, 64QAM, 128QAM, 256QAM, 512QAM, 1024Q…

What is Synchronous Ethernet (SyncE) for Mobile Network?

When the telephone networks started to go digital in the 1960s, the voice sampling frequency was ca…

What is Rain Fade on Microwave Links?

Rain fade refers primarily to the absorption of a microwave radio frequency (RF) signal by atmosphe…

Why Not Distribute Wi-Fi Over the Distributed Antenna System (DAS)?

It does not make sense to combine the RF signal of one to three Wi-Fi access points (APs) and distr…

How to calculate GSM Capacity Station in Radio Network Planning?

The production system design planning considers input requirements, conversion process and output. …

What are Advantage and Disadvantage FDD and TDD in Microwave Transmission?

Microwave links typically use Frequency-division duplexing (FDD) which is a method for establishing…

What is Adaptive Coding and Modulation ACM in Radio Microwave Link?

Adaptive Coding and Modulation or Link adaptation is a term used in wireless communications to deno…

What are ODU (Outdoor Unit) functions in Digital Microwave Link?

The term ODU is used in Split-Mount Microwave systems where an Indoor Unit (IDU) is typically mount…

What is OMT for outdoor (ODU) in microwave hardware installation?

The orthogonal mode transducer (OMT) is the short name for the polarized hybrid coupler. The OMT is…

Why does Power Unit of AC use KVA and DC use KW?

AC power is an alternating sine wave (or some other repeating wave form that hopefully resembles a …

Understanding GSM Frequency Band

Many GSM cellular phones support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or four …

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