Vswr Measurement Ppt



Put ON the site analyzer by press & hold ON/OFF button for few second…



Screen appear on the display to any one mode in which it was switch off…



Here mode is fault location , so screen appear on display…

Fault Location Save/Recall

1.4

Auto Scale

VSWR

Hold

1.0 0

Distance(M)

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Esc Enter

450



Here we need to change the mode because we measure the VSWR not localize the fault...



Press the MODE button & screen change to…

Select Mode Measure match Fault location Measure power

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Esc Enter



Select MEASURE MATCH button by pressing selection button & screen change to…

Measure match Save/Recall

1.4

Auto Scale

VSWR

Hold

1.0 1710

Frequency(MHz)

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Esc Enter

1880



Here frequency scale is not for GSM900 band so we have to change frequency band…



Now press CONFIGURATION button & screen change to…

Frequency Limit

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Esc Enter



Using SELECTION button , select the frequency…

VSWR

Start frequency

1710

MHz

Stop frequency

1880

MHz

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Esc Enter



Select start frequency and stop frequency by using LEFT/RIGHT AROOW button and enter desired frequency by using NUMERIC KEYPAD & press ENTER…



Now press Esc. And screen change to…

Measure match Save/Recall

1.4

Auto Scale

VSWR

Hold

1.0 890

Frequency(MHz)

960

Calibration OFF

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Esc Enter



Now here we need to calibration ON…

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So we need for that calibration kit…

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To do calibration , press CALIBRATION button…

Calibration Short Open Load

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Esc Enter





Now connect short connector of calibration kit with RF antenna port of the site analyzer… So by using SELECTION button select SHORT screen change to…

&

Calibration Short Done Open Load

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Esc Enter



Now remove short connector & connect open connector with RF antenna port of the site analyzer…

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So by using SELECTION button select OPEN & screen change to…

Calibration Short Done Open Done Load

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Esc Enter



Now remove open connector & connect load connector with RF antenna port of the site analyzer…



So by using SELECTION button select LOAD & screen change to…

Measure match Save/Recall

1.4

Auto Scale

VSWR

Hold

1.0 890

Frequency(MHz) Calibration ON

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Esc Enter

960



Now remove load connector & connect RF antenna port and Jumper using adaptor…



Then press AUTO SCALE & screen change to…

Measure match Save/Recall

1.4

Auto Scale

VSWR

Hold

1.0 890

Frequency(MHz) Calibration ON

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Esc Enter

960



From this graph we don’t take exact value of VSWR…

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For that we need marker on the graph…

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So activate marker by press MARKER button & screen change to…

Marker M1 Activate

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Esc Enter



Now select activate by using SELECTION button & screen change to…

Marker M1 Deactivate

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Esc Enter



Now press Esc & screen change to…

Measure match Save/Recall

1.4

Auto Scale

VSWR

Hold

M1

1.0 890 M1: 900

Frequency(MHz) Calibration ON

1.19

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Esc Enter

960



We need marker on the pick…

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So press the TOP ARROW button and marker shift to the pick & screen change to…

Measure match Save/Recall

M1

1.4

Auto Scale

VSWR

Hold

1.0 890 M1: 900

Frequency(MHz) Calibration ON

1.19

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Esc Enter

960



Here VSWR value is over the acceptable range means fault in transmission line…

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So we have to localize the fault…

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For that we need change the mode…



So press MODE button and select the fault location by using SELECTION button & screen change to…

Fault Location Save/Recall

1.4

Auto Scale

VSWR

Hold

1.0 0 M1: 900

Distance(m) Calibration ON

1.19

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Esc Enter

450



In this screen accuracy of reading is not good…

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So we need to set distance scale…

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So press the CONFIGURATION button & screen change to…

Distance Limit

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Esc Enter



Now select distance by using selection button & screen change to…

Distance

meter Start Distance

0

Stop Distance

450

Max Distance

450

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Esc Enter



Now select stop distance by using LEFT/RIGHT ARROW button…

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Then enter desired distance by using NUMERIC KEYPAD and press enter…



Now press Esc & screen change to…

Fault Location Save/Recall

1.4

Auto Scale

VSWR

Hold

1.0 0

Distance(m) Calibration ON

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Esc Enter

25



Here we also need marker for exact location…

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So we have to activate the marker…

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So press MARKER and select activate using SELECION button & screen change to…

Fault Location Save/Recall

1.4

Auto Scale Hold VSWR

M1

1.0 0 M1: 1

Distance(m) Calibration ON

1.18

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Esc Enter

25



Now press TOP ARROW button and marker on the pick & screen change to…

Fault Location Save/Recall

1.4

M1

Auto Scale

VSWR

Hold

1.0 0 M1: 12

Distance(m) Calibration ON

1.37

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Esc Enter

25



Now we get fault at exact location…

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So check that location and rectify fault…

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Now for save the reading select Save/Recall by using SELECTION button & screen change to…

Save Recall Edit

JAIPUR -1M 22/12/2011 2.00PM

Delete

JAIPUR -1M 22/12/2011 2.05PM JAIPUR -1M 22/12/2011 2.10PM

JAIPUR -1M 22/12/2011 2.15PM

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Esc Enter



To save the new reading select save by using SELECTION button & screen change to...

SURAT B – 1M K

A

F

K

P

U

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L

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Space

“

M

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H

M

R

W

[

:

D

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]

-

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+

N O

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Esc Enter



Now enter name and then press Esc…



So reading saved & screen change to…

Save Recall

SURAT B - 1M 25/12/2011 9.15AM

Edit

JAIPUR -1M 22/12/2011 2.00PM

Delete

JAIPUR -1M 22/12/2011 2.05PM JAIPUR -1M 22/12/2011 2.10PM

JAIPUR -1M 22/12/2011 2.15PM

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Esc Enter



Now arrange all the connection with S.A and sensor…



50w element towards O/P direction and 5 w element towards I/P direction…



Connect S.A with sensor using D-9 serial straight cable…



Now put ON the S.A…



We have to need change the mode…



So change the mode to MEASURE POWER & screen change to…

Measure power M watt

Warning Do not apply external power to RF antenna test port

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Esc Enter



After few time screen change to…

Measure power DBM 50

0 FWD: 40 watt REF: 0.1 watt

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Esc Enter