Maximum availability and minimum costs

Reliability

The R&S®SK4105 and R&S®SK4110 HF high-power transmitters feature longer service life and lower failure rates by minimizing thermal load on all transmitter components, thanks to self-sufficient liquid cooling. There is no single point of failure, as each transmitter has its own self-sufficient cooling system and the internal electronics are prevented from being exposed to harsh environmental conditions, e.g. damp, salty air.

The transmitters feature a sustainable carbon-footprint. R&S®SK4105 and R&S®SK4110 feature critical module redundancy, i.e. uninterruptable transmission and operation in case of power supply failure or HF output stage failure. Replacements are schedulable at regular maintenance.

Further features include remote monitoring and configuration alongside initial error analysis and optional Uninterruptible Power Supply (UPS) for minimum downtime, i.e. the transmitter will not shut off even after power failure of entire station or excessive voltage fluctuations.

Rohde & Schwarz has proven the reliability of liquid cooling in TV broadcasting operations for 25 years.

Total cost of ownership

The R&S®SK4105 and R&S®SK4110 HF high-power transmitters feature reduced capital expenditures (CAPEX) and operational expenses (OPEX).

Thanks to the usage of liquid cooling, instead of forced air cooling, internal electronics are not exposed to harsh environmental conditions, and the heat loss from the transmitter is contained in the liquid and can be reused. These benefits result in reduced OPEX.

Additionally, there are no replacement transmitters required to be run in standby mode, due to increased reliability, which results in reduced CAPEX. In comparison to forced air cooling in general, there is less maintenance and there are fewer mechanical components as well as fewer expendable parts, e.g. no filter for drying and desalination and the ambient air, which results in reduced OPEX, too.

Further reduced CAPEX benefits include the fact that selected replacement modules can be used in both systems; and there is no additional system procurement required to generate compressed, dried and desalinated air. Further reduced OPEX benefits include no additional maintenance and electricity consumption.

Future proof investment

The R&S®SK4105 and R&S®SK4110 HF high-power transmitters are a future proof investment, as their components are software defined, i.e. new functions or waveforms can be retrofit easily; they support HF wideband up to 48 kHz (MIL-STD-188-110D and MIL-STD-188-141D) and Link22 (in line with MIL-STD-188-203-1A) and BRE1TA (BRE2TA ready); and are designed for bandwidths of up to 200 kHz, with the exception of the current exciter.

Furthermore, the R&S®Series4100 radio, which is part of the transmitter, is modular, i.e. HW modules can be retrofit, if necessary.

Compact, silent and individually adaptable

The R&S®SK4105 and R&S®SK4110 HF high-power transmitters are compact, silent and individually adaptable. They feature a small footprint at just 1x19inch, a reduced noise level and a flexible liquid cooling system and customizable, self-cleaning liquid heat exchanger.

The further feature automatically adjustable speed of VANs according to the situation (speed and thus power consumption reduceable). Rohde & Schwarz has proven the reliability of liquid cooling in TV broadcasting operations for 25 years.