ON TOUR XTB (serv.man12) - JBL Audio EMC - CB Certificate (repair manual). Page 23

 

 

 

 

 

 

5.5. 

Medium Access Protocol Para. No.: 4.3.5 

 
 

Test Performed By: No Test Applicable 

Date of Test: February 11, 2010 

 
A medium access protocol is a mechanism designed to facilitate spectrum sharing with other devices in a 
wireless network. A medium access protocol shall be implemented by the equipment. 
 
This is accomplished by the BlueTooth protocol. 
 
 
5.6. 

Transmitter spurious emissions Para. No.: 4.3.6 

 
 

Test Performed By: Alan Laudani 

Date of Tests: August 4, 2008, February 11, 2010 

 
 
Method of Measurement: 

5.7.5 b) – exception: max hold, quasi-peak with 120 kHz bandwidth. No 

significant differences due to channel or mode. Worst case emissions presented. Investigations made from 
30MHz to 21750 MHz. 
 
 
Test Conditions: 

 

Ambient Temperature: 27

C 

    Relative 

Humidity: 

45% 

 

 

 

 

Max Measurement Uncertainty: =  ±6.0dB Radiated

 

 
Measurement Uncertainty (Actual): 

See Table below 

 

Contribution 

Probability 

Distribution 

Type 

Probability 

Distribution x

i

Standard 

Uncertainty 

u(x

i

) 

[u(x

i

)]

2

 

1 Receiver/Spectrum Analyzer 

Rectangular

0.20

0.12

0.01

2 Cables 

Rectangular

0.50

0.29

0.08

3 Preamp 

Rectangular

0.50

0.29

0.08

4 Antenna 

Rectangular

0.41

0.24

0.06

5 Site 

Rectangular

2.00

1.15

1.33

6 EUT Setup 

Rectangular

1.00

0.58

0.33

    

  

Combined Uncertainty (u

c

):

1.38

  

  

Coverage Factor (k):

2

  

  

Expanded Uncertainty:

2.76

 
 
LIMITS: 4.3.6.2, TABLE 2