ii. With vertical polarization for both antennas, the receive antenna must be moved
horizontally right 1.0 m from the initial position, and then move it left from the initial
position to 1.0 m. Then starting 1 m above the initial position, move slowly
horizontally right 1 m and then horizontally left 1 m from initial position. Repeat this at
0.3 m above the floor (measure 0.3 m from the floor to the bottom of the antenna),
move slowly horizontally right 1 m and then horizontally left 1 m
iii. Record the maximum measurement reading in this plane
3.3.7.3 Attenuated Level Measurement
1. The basic measurement procedure consists of positioning the transmit antenna outside the
RF shielded room and the receive antenna inside the RF shielded room and measuring the
magnitude of the largest received signal
2. The Transmit Power for the shielded Room Measurement is the same as the power used to
determine the Reference Level
3. If an attenuator was used in the Reference measurement, it would be taken out for the
shielded Room measurement and the attenuator value added to the SE in the datasheet
4. Measurement setup for the attenuated level is in accordance with the illustration below:
Illustration 7-7: Attenuation Level Measurement
5. Attenuated Level measurement is taken at each test location with antenna at both
polarizations (horizontal and vertical).
a. Attenuated Level at Horizontal Polarization
i. Both tuned Receive and Transmit Antennas are in Horizontal Polarization
ii. In all the following measurements the Receive Antenna is held in Horizontal
Polarization and kept at a distance of 0.3 m from the inside shielded room wall
iii. Starting with the Receive Antenna directly parallel to the Transmit Antenna begin to
slowly move the Receive Antenna in a Volume Parallel to the shielded room wall 1 m
SIGNA Voyager Pre-Installation
Direction 5680008–1EN, Revision 2
Chapter 7 Appendix
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