The
Vecima Networks' HDC2600 is a hub downconverter for
two-way MMDS in-band applications. Return signals from
subscribers are received over the full 2596 to 2620 MHz
band and downconverted to 18 to 42 MHz. This frequency
plan mirrors that of the TR2626 subscriber transceiver to
ensure proper modem operation.
The
HDC2600 is provided in an environmentally sealed outdoor
enclosure with N connector input to allow connection to
the antenna. Locating the HDC2600 outdoors with the RX
antenna allows for the use of low cost VHF feed cable and
improved system noise figure performance. The F connector
IF output is connected to an indoor power inserter via low
cost RG-6 feed cable and then directly connected to the
Base Station/Hub Modem Termination System. High
out-of-band rejection is provided through the use of an
integrated cavity filter. To ensure operation with a wide
variety of modem systems, the local oscillators are phase
locked to a high stability TCXO resulting in a maximum of
±2 ppm temperature drift over the full -40 to +50°C
temperature range. |
Features:
- Low noise
figure, 3.5 dB
- Integrated
cavity filter for high out-of-band rejection
- Frequency
synthesized local oscillators locked to a high stability TCXO
- High
reliability, state-of-the-art design using microstrip MMIC and
surface mount technology
- Conservative
component derating and 100% burn in help ensure reliable
operation
- Weather proof
enclosure allows for direct connection to antenna; improved
system noise performance
Specifications
subject to change without notice. |
