Install Manual

BRITECELL System Manual MN010-04 June 2003 Page 49 of 78

The company has a policy of continuous product development and improvement and we therefore

reserve the right to vary any information quoted without prior notice.

41. Introduction

This section describes the THYB common path RF combiner family. THYB is part of

Britecell system and it allows combining of downlink and uplink path into a single

one, while maintaining required isolation and stability.

This component has been designed for Britecell system configuration requiring

single RF connector carrying both DL and UL signals when system is interfaced

through a diplexed BTS.

42. Part description

Fig. 34 THYB

43. Functional description

THYB is a bi-directional hybrid RF combiner/splitter. It can be chosen in single or

dual band version. It’s provided with uplink pass-band filters to improve UL

isolation performances.

THYB typical application is in conjunction with diplexed BTS where DL and UL

paths are provided in single RF connector.

For insertion loss value, refer to datasheets.

44. Warnings

Maximum RF composite input power must not exceed 30 dBm.

SMA connectors must be screwed with a proper dynamometric key.

45. Installation and cabling

THYB is a modular plug-in card, suited to be contained in a 6 HE Sub rack (TPR

family). THYB interfaces with BTS transceiver through ‘C’ connector (type SMA-

female). THYB interfaces with Britecell downlink and uplink paths through ‘DL’ and

‘UL’ connectors respectively (type SMA-female).

DL/UL RF combined

input/output

Uplink RF

input

Downlink RF

output