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
where
E
EUTmax
given in decibels referenced to one microvolt per meter (i.e., dBµV/m).
Using the nominal value of the EUT gain G
A
declared by the manufacturer, calculate the limit on EIRP
EUT
using Equation (4) in 4.4. If EIRP
EUT
exceeds the limit, it fails the test.
Compliance with the monitoring threshold limits is verified as follows:
a) Using Equation (5), calculate the power P
Tref
that must be applied to the reference antenna
terminals to establish the monitoring threshold field level at the EUT transmit antenna.
b) Apply power first smaller than and then equal to P
Tref
to the reference antenna terminals and
illuminate the EUT in the direction of maximum radiation, while continuously attempting to
initiate the EUT transmission. Verify that there is at least one position of the EUT in which it
will transmit when sufficiently low power is applied to the reference antenna terminals.
c) When the power level applied to the reference antenna is equal to or larger than P
Tref
, the EUT
shall defer for one or the other of two orthogonal polarizations of the reference antenna (e.g.,
vertical and horizontal). Otherwise, it fails the test.
4.9
4.10
Radiated measurements of products with collocated transmitting and
monitoring antennas of different types
Set up the EUT and reference antenna with its major lobe facing the EUT in the far field with separation r.
Perform the transmission test as described in 4.8 and verify that EIRP
EUT
meets the limits.
Compliance with the monitoring threshold limits is verified using the same procedure as in 4.8.
Radiated measurements of products with arbitrarily placed transmitting and
monitoring antennas
Set up the reference antenna with its major lobe facing the EUT in the far field with separation r. Perform
the transmission test as described in 4.8 and verify that EIRP
EUT
meets the limits.
The equivalent coverage test for the transmitting and monitoring antennas is performed as follows:
a) Calculate, as described in 4.8, the power P
Tref
that must be applied to the reference antenna to
establish the monitoring threshold field at the EUT transmit antenna.
b) Move the reference antenna (without changing its orientation) in the direction of the EUT
maximum radiation at a distance r + s from the monitoring antenna, where s is the maximum
possible separation distance between the transmit and monitoring antennas, as specified by the
EUT manufacturer.
c) Apply power, first smaller than and then equal to and larger than P
Tref
to the reference antenna
terminals and illuminate the EUT monitoring antenna. Investigate a number of the EUT
monitoring antenna placements and positions on the surface of a sphere around the EUT
monitoring antenna, as described in 4.8, while attempting to initiate transmission. There should
exist a sufficiently low reference antenna power level (smaller than P
Tref
,) such that the EUT is
able to transmit at least at one EUT antenna position.
d) When the power level applied to the reference antenna is equal to and larger than P
Tref
, the EUT
shall defer at all positions of the monitoring antenna, for either horizontal or vertical reference
antenna polarizations. Otherwise, it fails the test.
13
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