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ANSI C63.17-2006 
Methods of Measurement of the Electromagnetic and Operational Compatibility of UPCS Devices 
 
Figure 1
4.2
Table 1
 —Test facilities that may be used 
 
 Test configurations and setup 
Clause 6 provides detailed tests of parameters related to RF emissions, such as peak transmit power, 
emission bandwidth, and PSD. Those tests are similar to emission tests performed on most non-UPCS 
devices. Clause 7 and Clause 8 provide tests that verify compliance with the monitoring and access 
requirements that are unique to UPCS devices. These tests require observation of the electrical performance 
characteristics of the EUT in the presence of controlled interference of a specific frequency, power level, 
and modulation format. The monitoring and access tests have implications for the conducted and radiated 
test setups. 
 
The monitoring antenna refers to the EUT antenna used to monitor the RF signal on the channel prior to 
transmission. In many cases, the monitoring antenna will be the same as the transmitting antenna. If it is 
not, then the monitoring and access tests are further complicated by the need to ensure that the monitoring 
antenna provides “coverage” that is at least equivalent to that which would be provided by the transmit 
antenna. 
 
This standard identifies six test configurations. Each configuration is discussed in a separate subclause as 
shown in Table 1. 
 
 —Test specifications for different antenna configurations 
Transmit/monitoring Subclause 
Antenna  
comparison and  
placement 
Conducted  
measurement based 
test (preferred) 
Radiated  
measurement based  
test 
Single, or identical collocated 
Different collocated 
Arbitrarily placed 
 
Copyright © 2007 IEEE. All rights reserved. 
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