“Compact” TV transmitters: efficient and easy

Energy effectiveness and ease of handling are the keys for the “Compact” TV transmitters and repeaters by SyES. Air-cooled, available in single or multiple amplifier configuration,  from low to high output power levels. Both digital (including DVB-T2, ISDB-T) and analog, based on PCM exciter.

“Compact” systems are based on three amplifier types. SLIM1 is used to implement low output power configurations in a very small size. It provides up to 60W rms in just 1RU, 19”std. More power is delivered by configurations based on SLIM2, with up to 250W rms in 2RU. Both SLIM1 and SLIM2 can be operated with single phase power supply. For the highest power levels, SLIM3 delivers 500W rms in 3RU and can be combined to implement configurations to reach up to 4kW rms in a single cabinet.

RF signal is provided by the well known modulation platforms developed by SyES. PCM, the new integrated exciter, handles a large variety of standards, including DVB-T2, ISDB-T, ATSC and can switch from one to another in a click. Linear and nonlinear precorrection, static and adaptive, ensure the best performance of the system.

For repeaters, possible configurations range from heterodyne translator to regenerative repeater. Also available are built-in receivers to interface satellite (DVB-S/S2) or ethernet (GBE) stream distribution.

In the product development, the use of state-of-the art RF circuitry has been matched to a special care for reliability and durability.

The advanced RF design, together with an efficient modulation platform, results in spotless signal quality. Shoulder and MER levels better than 40dB are well within reach, ensuring a good viewing experience over the whole coverage area. Also, the equipment operating budget benefits from the low energy consumption, with efficiency values in excess of 20%.

Good efficiency, together with a competent thermal design, with patented solutions, result in high power density while keeping the temperatures and the cooling air flow within reasonable terms. Such a durability-aware design approach positively affects also the extent of maintenance for SyES systems and the related costs.

The advanced features of the signal processing are instrumental also for the implementation of sophisticated system configurations, as for example n+1 passive reserve.

Individual transmitters as well as complex configurations can be easily controlled by complete and user-friendly interfaces, trough web pages or SNMP. However, the often convenient front panel displays, leds and keys have not been forgotten and allow a direct access to the equipment, on site and without additional tools.