Page 19 of 28
INSTRUCTION MANUAL
CLCI-100
BULK CURRENT INJECTION PROBE
with
FCLC-100
CALIBRATION FIXTURE
1912 1 E l T o ro R d
●
Si l vera do, Ca lifo rni a 9 26 76
●
(9 49) 459 -96 00
●
co m-p o wer. com
REV051917
4.4.2.2
Test Level Offset Calculations
If the CLCI-100 Bulk Current Injection Probe will be used for
multiple test levels (1 Vrms, 3 Vrms, 10 Vrms, etc.), calibration
should be performed at the highest test level. Calibration data
for the lower test levels can then be calculated as shown
below:
The offset factor calculated above can then be applied to the
calibration data as shown below:
4.4.2.3
Test Frequency Calculations
The frequency range of the test is, in most cases, 150 kHz to 80
MHz; and, in some cases, 150 kHz to 230 MHz. The calibration
and test is performed at discrete, logarithmically spaced
frequencies (as opposed to a frequency sweep). The
logarithmic spacing of the test frequencies means that the
actual step size increases after each step. The maximum step
size at any given frequency is equal to 1% of the present
frequency. Below is a truncated example of the test
frequencies, showing the respective step sizes.
Step Size = Present Frequency * 0.01
Next Test Frequency = Present Fre (Present Frequency * 0.01)
U
offset
(in dB)
=
U
cal
(in Vrms)
U
calc
(in Vrms)
- or -
(
20*log
)
U
offset
(in dB)
=
U
calc
(in dB)
U
cal
(in dB)
-
where:
U
cal
=
calibration test level
U
calc
=
calculated test level
=
SGout
calc
(in dBxx)
U
OFFSET
(in dB)
-
SGout
cal
(in dBxx)
FWDpwr
calc
(in dBm)
FWDpwr
cal
(in dBm)
=
U
OFFSET
(in dB)
-
where:
SGout
calc
=
calculated signal generator output for lower test level
SGout
cal
=
signal generator output determined during calibration at highest test level
FWDpwr
calc
=
calculated forward power for lower test level
FWDpwr
cal
=
forward power measured during calibration at highest test level
TEST
FREQUENCY
STEP SIZE
TEST
FREQUENCY
STEP SIZE
TEST
FREQUENCY
STEP SIZE
TEST
FREQUENCY
STEP SIZE
TEST
FREQUENCY
STEP SIZE
(MHz)
(kHz)
(MHz)
(kHz)
(MHz)
(kHz)
(MHz)
(kHz)
(MHz)
(kHz)
1
0.15
1.5
11
0.165693319
1.656933188
21
0.183028506
1.83028506
31
0.202177337
2.021773373
41
0.22332956
2.2332956
2
0.1515
1.515
12
0.167350252
1.67350252
22
0.184858791
1.848587911
32
0.204199111
2.041991107
42
0.225562856
2.255628556
3
0.153015
1.53015
13
0.169023755
1.690237545
23
0.186707379
1.86707379
33
0.206241102
2.062411018
43
0.227818484
2.278184842
4
0.15454515
1.5454515
14
0.170713992
1.707139921
24
0.188574453
1.885744528
34
0.208303513
2.083035128
44
0.230096669
2.30096669
5
0.156090602
1.560906015
15
0.172421132
1.72421132
25
0.190460197
1.904601973
35
0.210386548
2.103865479
45
0.232397636
2.323976357
6
0.157651508
1.576515075
16
0.174145343
1.741453433
26
0.192364799
1.923647993
36
0.212490413
2.124904134
46
0.234721612
2.347216121
7
0.159228023
1.592280226
17
0.175886797
1.758867967
27
0.194288447
1.942884472
37
0.214615318
2.146153175
47
0.237068828
2.370688282
8
0.160820303
1.608203028
18
0.177645665
1.776456647
28
0.196231332
1.962313317
38
0.216761471
2.167614707
48
0.239439516
2.394395165
9
0.162428506
1.624285058
19
0.179422121
1.794221214
29
0.198193645
1.98193645
39
0.218929085
2.189290854
49
0.241833912
2.418339117
10
0.164052791
1.640527909
20
0.181216343
1.812163426
30
0.200175581
2.001755815
40
0.221118376
2.211183763
50
0.244252251
2.442522508
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