B-10 PN: 10580-00343 Rev. H S820E UG
B-4 Common RF Terms Measurement Review
RF (Radio Frequency): Frequency of radio sine waves. The RF range is 3 kHz
to 300 GHz.
VSWR (Voltage Standing Wave Ratio): Another method to measure reflected
energy caused by impedance mismatch. Expressed as a ratio of X:1. VSWR
measures the voltage peaks and valleys. A ratio of 1:1 would be a perfect
match. A typical cable and antenna system would be around 1.43:1 (VSWR)
or 15 dB Return Loss. The Site Master can measure either Return Loss or
VSWR. Some carriers require that Return Loss is measured in VSWR. This is
typically a pass/fail measurement.
Watt: Unit of measure for power.
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