GSM Repeater

Al deze componenten zijn breedbandig, dus een DAS systeem kan gebruikt worden voor verschillende gelijktijdige systemen zoals GSM, UMTS, 2G, 3G, WLAN/WIFI en C2000!

Een passief DAS systeem heeft de volgende commerciële en technische voordelen:

• Technologisch neutraal, geen beperkingen voor toekomstige ontwikkelingen.
• Ideaal voor gelijktijdige breedbandige binnenhuis dekking oplossingen.
• Breed frequentie bereik van 300 Mhz t/m 2,5 GHz.
• Eenvoudig uitbreidbaar
• Geen toestemming nodig operators en/of netwerken
• Geen beperking in kanalen
• Geen afregel instellingen, onderhoudsvrij
• Veroorzaakt geen extra ruis en/of stoorsignalen

A passive DAS provides coverage for up to 50,000 sqm and consists of only passive components, such as
coaxial and radiating cables, power splitters, directional couplers and indoor antennas. All these
components are RF broadband, ensuring that a single deployed DAS can simultaneously support multiple
applications such as C2000, 2G, 3G and WLAN/WiFi as well.
A passive DAS ensures some major commercial and technical benefits:

•  Technology neutral with no capacity limit –
  future-proof
• Ideal for multiple operator and multiple system
  needs – RFS In-building DAS is truly RF
  broadband catering for frequencies ranging
  between 300 MHz and 2.5 GHz. Operators may
  easily add new services to an existing In-
  Building DAS solution by simply adding a new
  Radio Port at the equipment room. The inclusion
  of new pilot tones or additional (independent)
  signaling (RF) carriers is straightforward with the
  DAS solution. There is practically no limitation
  in channel capacity.
• Solution for the majority of buildings in terms of
  size (up to 50,000 sqm for single passive DAS).
• Passive products require no adjustment or
  preventive maintenance; therefore a passive DAS
  is maintenance free and doesn't implicate any
  operational expenditure.
  Passive and Hybrid Distributed Antenna Systems
• The use of point antennas and/or radiating cables
  is possible - this enables the designer to provide
  optimum coverage profile for any particular
  building shape and design.
• Passive DAS introduces no additional noise or
  intermodulation to the signal path. This enables
  multi-channel (and multi-operator) signals to be
  distributed without fear of service degradation due
  to the interference problems usually experienced
  for such applications. Such low interference and
  noise is crucial for reliable high data rates
  especially required by 3G applications.
  For large in-buildings the single passive DAS is
  extended to several additional passive DAS by using
  fiber-fed remote units (RF amplifiers). This is the
  hybrid-DAS solution. The design principles and
  products needed to implement each DAS are the same,
  thereby minimizing design time and installation
  experience required. The hybrid solution has a very
  low number of easily accessible active parts (Master
  Unit and fiber-fed Remote Units) resulting in a high
  MTBF and system availability.