Preparation | 73
Aprisa SR+ User Manual 1.11.1
5.
Preparation
Bench Setup
Before installing the links in the field, it is recommended that you bench-test the links. A suggested setup
for basic bench testing is shown below:
When setting up the equipment for bench testing, note the following:
Earthing
Each radio should be earthed at all times. The radio earth point should be connected to a protection earth.
Attenuators
In a bench setup, there should be 60 - 80 dB at up to 1 GHz of 50 ohm coaxial attenuation, capable of
handling the transmit power of +37 dBm (5 W) between the radios
’
antenna connectors.
Splitter
If more than two radios are required in your bench setup, a multi-way splitter is required. The diagram
shows a two way splitter. This splitter should be 50 ohm coaxial up to 1 GHz and capable of handling the
transmit power of +37 dBm (5 W).
Cables
Use double-screened coaxial cable that is suitable for use up to 1 GHz at
≈
1 metre.
CAUTION:
Do not apply signals greater than +10 dBm to the antenna connection as they can damage the
receiver.
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