SearchNetworking.com member Rudolph S. wrote:
With 30 years of experience in the RF industry and having an FCC commercial license I can offer a few simple suggestions:
– If the wireless router has the capability (e.g. CISCO), make sure the dual antenna ports are split, as to: one is the Rx antenna, the other is the Tx antenna.
– Make sure the Tx and Rx antennae are seperated by at least 6 feet to reduce RFI. Use coaxial cable with BNC connectors, soldered type is the best.
– The Rx antenna should be placed in a central location (e.g. in the Hung Ceiling), away from any steel girders and concrete (concrete often contains rebar, which is steel). Look for Good Line of Sight. 2.7GHz is a very directional signal band.
– If available, a spectrum analyzer should be used for the best Received Signal Strength Indicator reading from the workstations and servers for antenna placement.
– Tx antenna placement can be guaged by using the workstation’s utility for the Wirless NIC. A room corner can deflect the signal back into the room thus enhancing the Tx signal. This depends on the wall construction, plain sheetrock will not act as a deflector.
Antenna placement is critical for the Best RF signal!
Dana L. McCurley
Editor, ITKnowledge Exchange
117 Kendrick St.
Needham, MA 02494