ETS-Lindgren 3126 Precision Sleeve Dipole - Manual (Page 8)

www.ets-lindgren.com Introduction 8
The higher-frequency
antennas include a radome,
and are characterized with
the radome in place. The
radome provides improved
dielectric properties for
superior high frequency
performance.
Do not remove the radome
for any reason.
Model 3126-3600
Each Model 3126 is designed with a VSWR less than 1.2:1 in at least a ±10 MHz
band around the labeled center frequency. Gain values and ±0.1 dB symmetry
certification are provided for a 200 MHz to 300 MHz band (depending on the
specific model) centered about the labeled frequency. The dipoles have a typical
VSWR <3:1 across this entire band, and may be used for precision range
calibrations across the entire band provided appropriate padding (recommended
10 dB) is used to minimize possible standing wave effects on cables. The dipoles
have nominal impedance of 50 Ω, a maximum continuous transmit power of
one watt, and are equipped with a female SMA connector.
The dipoles are calibrated using an A2LA accredited process with a typical
measurement uncertainty on the order of ±0.2 dB. During the calibration process,
the dipoles are also certified to meet the ±0.1 dB symmetry required for use in
the ripple test specified in the CTIA Over-The-Air Performance Test Plan. Gain,
VSWR, maximum ripple, and measurement uncertainty values are provided with
each calibration.