ADTRAN TRACER 2xE1, Руководство пользователя

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TRACER 2 x E1 User’s Manual
61280004L2-1C
Section 1 TRACER Description
10
Figure 1-11. Mastmount RFC Housing
Up Angle View
Eye Level View
W
ARNING Mounting Clearances
Housing Assembly
and
Guide
for Mounting Bracket
Holes
Antenna Selection
TRACER is intended to be coupled with an antenna that is directional (thus providing signal gain). There
are several reasons for this requirement:
• TRACER operates in point-to-point applications so omnidirectional antennas cannot be used.
• The low power transmitter is intended to be used with a high-gain antenna for long links.
• Directional antennas minimize the interference that a site is susceptible to and also minimize
the site’s interference to other sites.
The antenna requirements are listed below.
Antenna 100 mW 1 W
Minimum gain .................... 15 dBi ............. 6 dBi
Minimum return loss .......... 15 dB .............. 15 dB
Connector ........................... N-type ............. N-type
Impedance .......................... 50
Ω
................. 50
Ω