Transparent Repeater vs Regenerative Repeater | difference between Transparent Repeater and Regenerative Repeater
This page compares Transparent Repeater vs Regenerative Repeater and mentions difference between Transparent Repeater and Regenerative Repeater used in satellite.
Introduction:
The Satellite payload can be divided into two major parts viz. antennas and repeater.
The repeater is categorized into Transparent Repeater and Regenerative Repeater.
Transparent Repeater
• The figure-1 depicts block diagram of a single frequency conversion transparent repeater.
• It is also known as bent pipe because it captures the signal from the earth and re-directs it back to the earth
without demodulating it.
• Before retransmission however,
the received uplink signal is frequency converted to the downlink frequency,
amplified and filtered.
• Other operations may also be applied to the signal.
Regenerative Repeater
• The figure-2 depicts block diagram of Regenerative Repeater.
• A regenerative repeater is known as on-board processing repeater.
• It consists of one or more uplink antennas, downlink antennas, low-noise amplifiers (LNAs),
frequency converters and high power amplifiers (PAs) like transparent repeater.
• It demodulates received uplink RF signal to recover the baseband signal and later re-modulates the baseband
signal to produce the downlink RF signal unlike transparent repeater
• This allows onboard processing based on different applications and switching in the baseband.
• Isolation between the uplink and downlink signals is accomplished by re-modulation of the baseband signal
at a different frequency rather than by frequency conversion.
Following are the major difference between Transparent Repeater and regenerative repeater.
➨Regenerative repeaters offer better performance compare to transparent
repeaters. This is due to the fact that the degradation in the uplink signal is not re-transmitted back in the
downlink signal.
➨Regenerative repeaters are less flexible compare to transparent repeaters as
they can handle predetermined data formats.
Transparent repeater does not bother the type of RF signal is being transported.
➨Regenerative repeaters are more complex and costly compare to Transparent Repeater.
➨Regenerative repeaters require more electrical power to operate compare to Transparent Repeater.
Satellite related links
To know more about satellite go through following mentioned links:
Satellite tutorial
what is a satellite
Satellite frequency bands of operation
Parts of a satellite
Satellite Orbits
Satellite Services
Satellite types
Satellite Capacity Allocation
Satellite Network Configuration
Satellite Applications
Satellite Terminology
Satellite Applications
Satellite Launch Procedure
Remote sensing satellites
Satellite TTC
Satellite Launch Service Providers
Satellite Parts Manufacturers
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