User's Manual
Table Of Contents
- General Description
- Features
- Evaluation Kit Applications
- Revision Table
- Table of Contents
- List of Figures
- List of Tables
- Overview
- Installation and Setup
- Configuring Evaluation Kit Hardware
- Evaluation Kit Hardware Description
- PHY Evaluation Using the Wireless Developer Kit
- Summary List of Test Hardware and Software Required
- Equipment Handling
- Guidelines for Running Tests
- Transmit Spectral Mask Compliance Test
- Total Average Transmit Power Test
- Peak Envelope Power Test
- Receiver Sensitivity and Scaled Ranged Versus Throughput Tes
- Receiver Immunity Test
- Minimum Antenna Separation Test
- Penetration Test
- Video Transmission and Reception
- Operating Conditions and Characteristics
- Support
- FCC Compliance Statement
- License Agreement
- Warranty Disclaimer
- Glossary
- References
- Appendix A – Sources for Leasing of Test Equipment
Rev 1.34, June 2, 2004
Copyright © 2001-2004 Motorola, Inc. All rights reserved. Page 25 of 44
5. Use the cd command as necessary on the Linux PC to move to the directory containing
the mode application supplied with the Motorola SDK.
6. Run the following command in the Linux PC command window opened as explained
above:
./mode BT
See the Motorola UWB Software Development Kit Utilities Guide for definitions of the
parameters used with the mode command.
7. Set the oscilloscope electrical plug-in as follows:
a. Time base: 1 nsec per division.
b. Vertical scale: 100 mV per division.
c. Trigger: free running.
d. Persistence: 5 seconds.
e. TDR Module Stimulus: off.
f. Markers: Set to permit reading minimum and maximum voltage to permit
computation of peak to peak amplitude.
8. Read the peak-to-peak voltage of the transmitter output signal on the oscilloscope. It
should be approximately 300 mV.
9. Compute the peak envelope power out of the transceiver using the formula:
400
2
pp
t
V
P =
where:
P
t
is the peak envelope power emitted by the transceiver in Watts (i.e. the power
dissipated in a 50Ω load by a sine wave with peak to peak amplitude
V
pp
).
V
pp
is the peak-to-peak amplitude in Volts at the antenna terminals.
Note: The equation above represents peak envelope power (PEP). It is derived from
the expression
R
E
2
, where E is the voltage and R is the load impedance. Computing this
involves summing the power in a single cycle (integrating from zero to one) using the
following peak envelope power (PEP) expression:
dt
t
V
pp
∫
⎟
⎠
⎞
⎜
⎝
⎛
1
0
2
2sin
2
50
1
π
.
Expected Results
The peak-to-peak voltage should be approximately 300 mV.
5.7. Receiver Sensitivity and Scaled Ranged Versus Throughput Test
Summary Description: This test determines the sensitivity of the UWB receiver by measuring
the minimum signal detected for frame error rates (FER) of 1%, 5% and 10%. Together the
transmit power and Rx sensitivity values are useful in determining the link budget of a UWB
subsystem. Both UWB transceivers are run in continuous, framed mode during this test.