User Manual

MM102365V1 Rev. B
18. Measure RX signal strength and compare it to the expected design signal strength. The measured and
designed to signal strength should be within a couple of dB, if not, you have some sort of RF issue. If
the antenna system checks out, the difference could be due to an obstruction in the path.
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Repeat this test on each port to verify the ports on both ends (if so equipped) and to test out each RF
path.
19. Interference avoidance. If the proper signal strength is seen and the antennas check out and you have
some interference on the band in step 14. That is, if interferers are within 10 – 15 dB of the receive
signal, then the link will most likely be impacted.
Try removing frequencies that look congested or bad in step 14 from the frequency list. Any signal
within approximately 6 MHz on either side of the center frequency can impact the link.
20. If your RX signal strength is as expected you may want to verify the forward and reflected power of
the radio. The proper TX power of the radio is ~ 23 to 25 dBm average power and ~ 26-28 dBm
peak.
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Item 18 can be done with a test antenna and test feed line to verify interferers and signal strength at RX radio if antenna
system is suspected to be bad.
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