BT603 Users Manual
12.1.
Characteristic Impedance Test
The tester calculates the characteristic impedance of the cable based on the TDR method. However, contrary to the TDR test in Section 6,
this test uses a step signal.
①
②
③
④
Figure 32 Characteristic Impedance Test
①
Connector used for testing. To change the connector, press
; then the test is conducted on ‘BNC’
→
‘1-2 (RJ45)’
→
‘3-6
(RJ45)’
→
‘4-5 (RJ45)’
→
‘7-8 (RJ45)’
→
‘BNC’.
②
Characteristic impedance. It is calculated on the position of Cursor2; therefore, it should be located within the cable length.
③
Distance (between Cursor1 and Cursor2) or VOP. To swap them, press
.
④
Cursor1 and Cursor2. To move them, use with its mode set to “CURSOR1” and “CURSOR2” respectively. (See Section 8.6)
Use the cursor keys To change the mode or set the VOP, then press
. It is similar to changing pulse width in Section 8.6
and is similar to setting the items as shown in Section 8.6.
To go back to the previous menu, press
.
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