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Measurement Data: 

 

 

+20°C 

Frequency low 

Frequency high 

Voltage Nominal 230 VAC 

2401.627 2479.182 

Voltage 90% 207 VAC 

2401.627 2479.182 

Voltage 1.10% 253 VAC 

2401.616 2480.373 

  

  

  

  

  

  

-20°C 

Frequency low 

Frequency high 

Voltage Nominal 230 VAC 

2401.683 2480.128 

Voltage 90% 207 VAC 

2401.515 2480.296 

Voltage 1.10% 253 VAC 

2401.683 2480.128 

  

  

  

+55°C 

Frequency low 

Frequency high 

Voltage Nominal 230 VAC 

2401.601 2479.286 

Voltage 90% 207 VAC 

2401.683 2479.286 

Voltage 1.10% 253 VAC 

2401.515 2480.296 

 
 
Test Set-up (typical) Plot: 
 

 

 

 

 

 

 

 
Test Set-up Photo: 
 

 

 

 

 

 

 

 

5.4. 

Frequency Hopping Requirements Para. No.: 4.3.4 

 
 

Test Performed By: Alan Laudani 

Date of Test: October 23, 2008 

 
Test Conditions: 

 

Ambient Temperature: 21

C 

    Relative 

Humidity: 

35% 

 

 

 

 

Max Measurement Uncertainty: =  ±6.0dB Radiated 

 

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: 4.3.4.1: The maximum dwell time shall be 0,4 s. Non-adaptive Frequency Hopping systems shall make 
use of non-overlapping hopping channels separated by the channel bandwidth as measured at 20 dB below 
peak power. The hopping channels defined within a hopping sequence shall be at least 1 MHz apart (channel 
separation). Non-adaptive Frequency Hopping systems shall make use of a hopping sequence(s) that contains 
at least 15 hopping channels. Adaptive Frequency Hopping systems shall make use of a hopping sequence(s) 
that is capable of operating over a minimum of 90 % of the band specified in table 1, from which at any given 
time a minimum of 20 hopping channels shall be used. Each hopping channel of the hopping sequence shall 
be occupied at least once during a period not exceeding four times the product of the dwell time per hop and 
the number of channels. 
 
Method of Measurement: 

5.7.4 

 

 

 

 

 

 

 

At least 20 hopping channels – 79 counted. 

Span  = 2480 - 2402 MHz > 90% of the band 

 

 

20 Counted. 

 

 

20 Counted.