Trimble Inc. WCSNM941 Manual De Usuario

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Installation

SNM941 Connected Site Gateway Installation Guide | 

Determine the location of the 4-In-1 antenna

The antenna locations will have a significant effect on the performance quality of the SNM941 device. 

•

Mount antenna with the face of the antenna horizontal with the open sky, in an area that has a clear 
360

°

 view of the sky and is at least 20 cm from all other transmitting antennas, the operator and any 

other occupant, while still allowing the antenna cables to easily reach the SNM941. 

•

The antenna should not be easily sighted, to reduce the chances of tampering or disablement.

•

The antennas should be firmly attached to the asset so that they will not come loose due to shock, 
vibration, or thermal cycling. 

•

The antenna may be mounted directly to a horizontal surface near the top of the asset using the 
industrial adhesive or the antenna bracket.

•

The antenna must mounted at least 1" from metal structures and surfaces. Use the Trimble antenna 
mounting bracket to position the antenna away from metal as needed.

•

If the SNM941 is mounted more than 600 mm from the antenna, you must use the extension cable 
set P/N 110046-44. The extensions will be 4.4 m in length. Typically these will be required if the 
SNM941 is chassis mounted. When routing the extension cables make sure to avoid sharp corners, 
excessive heat sources, frequent flexing of the coax cables, an extremely tight bend radius, or 
sources of electrical noise. 

C

The antenna connectors and extension cable connectors must be isolated from 

chassis ground.

DRAFT