Manual
Table Of Contents
- ANSI C63.17-2006 Front Cover
- Title page
- Introduction
- Notice to users
- Participants
- Contents
- American National Standard Methods of Measurement of the Electromagnetic and Operational Compatibility of Unlicensed Personal Communications Services (UPCS) Devices
- 1. Overview
- 2. Normative references
- 3. Definitions, symbols, acronyms, and abbreviations
- 4. Radiated and conducted emissions test methodology
- 4.1 Test facilities and equipment
- 4.2 Test configurations and setup
- 4.3 Transmitted power and monitoring threshold limits
- 4.4 Limits for radiated and conducted tests
- 4.5 Conducted measurements of products with identical collocated transmitting and monitoring antennas
- 4.6 Conducted measurements of products with collocated transmitting and monitoring antennas of different types
- 4.7 Conducted measurements of products with arbitrarily placed transmitting and monitoring antennas
- 4.8 Radiated measurements of products with identical collocated transmitting and monitoring antennas
- 4.9 Radiated measurements of products with collocated transmitting and monitoring antennas of different types
- 4.10 Radiated measurements of products with arbitrarily placed transmitting and monitoring antennas
- 4.11 Manufacturer’s declarations and descriptions
- 5. Measurement instrumentation
- 6. RF measurements
- 7. Monitoring tests
- 8. Time and spectrum window access procedure
- 9. Test report
- 9.1 Test report contents
- 9.2 Applicable standards
- 9.3 Equipment units tested
- 9.4 Test configuration
- 9.5 List of test equipment
- 9.6 Units of measurement
- 9.7 Location of test site
- 9.8 Measurement procedures
- 9.9 Reporting measurement data
- 9.10 General and special conditions
- 9.11 Summary of results
- 9.12 Required signatures
- 9.13 Test report appendixes
- 9.14 Test report disposition
- Annex A (informative) 47CFR15, Subpart D—Rules and test cases for UPCS devices
- Annex B (informative) Radiated and conducted measurement of power output and monitoring thresholds
- Annex C (informative) Options for implementing the tests of Clause 7 and Clause 8
ANSI C63.17-2006
Methods of Measurement of the Electromagnetic and Operational Compatibility of UPCS Devices
Table 7 —Test parameters for carrier-frequency stability testing
Temperature Supply voltage
20°C ± 2°C
85% to 115% of declared
nominal voltage
−20°C ± 2°C
All declared nominal(s)
+50°C ± 2°C All declared nominal(s)
The EUT passes if the mean carrier-frequency sample measurements at the extremes of power supply
voltage differ from the average of the mean carrier-frequency sample measurements of 6.2.1.1 by 10 ppm
or less.
6.2.1.3
6.2.2
Table 8
Carrier-frequency stability over temperature
The mean value of the EUT carrier frequency shall be measured at the temperature extremes of Table 7, or
at extreme temperatures as declared by the manufacturer.
The EUT passes if the mean carrier-frequency sample measurements at the extremes of temperature differ
from the average of the mean carrier-frequency sample measurements of 6.2.1.1 by 10 ppm or less.
Frame-repetition stability
A demodulating spectrum analyzer, modulation analyzer, or frequency- and time-interval analyzer is
configured as follows in Table 8 for the frequency measurement of the detected RF envelope:
—Measurement system configuration for frame-repetition stability test
X axis Time
Time setting Approximate frame period × 100
Y axis Frequency
Center frequency Nominal frame-repetition rate
Frequency span
Span large enough so that the full waveform is greater
than 50% but less than 100% of the display scale.
Measurement time
interval (gating time)
X (in units of frame period) where X ≤ 1000
Number of
measurements
1000/X (where X is the measurement interval in units
of frame period)
The histogram of the frame timing distribution shall be computed with small or negligible latency time
between measurements.
The analyzer settings in Table 8 will enable the mean frame-repetition rate measurement to be taken over a
time period of at least 1000 frame periods. Alternatively, the mean frame-repetition rate may be obtained
using an envelope detector and a frequency counter with gating time set at 1000 times the frame period.
The mean value of the frame-repetition rate should be recorded for a total of about 1000 readings or over at
least 1 h period of time. It may be necessary to use a computer to log the measurements if the analyzer does
not have that capability. A distribution of these 1000 readings should be recorded and its standard deviation
computed. EUTs that implement time division for the purpose of maintaining a duplex connection shall
maintain a frame-repetition rate whereby three times the standard deviation of the frequency stability shall
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