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Step
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Notes
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1
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Mode
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2
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[Antenna/Cable]
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3
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[Distance to Fault]
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The distance to fault measurement takes a few seconds to load.
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4
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On [Freq Range] select Auto.
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Each time you press this softkey, the selected option changes.
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5
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On [Units] select Meters or Feet.
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Each time you press this softkey, the selected option changes.
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6
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[Start Distance]
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For greater ease of use, you do not need to display the measurement results for the entire cable length that you are measuring. If you want to zoom in on a small section of the cable, enter here the distance from the start of the cable. If you want to look at the whole cable, leave this at the default setting of 0 m (0 ft).
If your Start Distance is 0 m (0 ft), you will see a peak corresponding to 0 m (0 ft). This is caused by reflection from the junction between your analyzer and the cable under test. This does not necessarily indicate a problem, but be sure that this connection is tight and clean.
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7
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Using the numeric keypad, enter the start distance for the part of the cable that you wish to zoom in on.
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After entering the Start Distance value, press [m] for meters, or [ft] for feet, to use the new value.
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8
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[Stop Distance]
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After entering the Stop Distance value, press [m] for meters, or [ft] for feet, to use the new value.
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9
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Using the numeric keypad, enter the stop distance for the part of the cable that you wish to zoom in on.
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The greatest accuracy is obtained when you enter a cable length slightly greater than the cable length being tested. If you are not sure of the cable length, enter a value 1.25 times the estimated length, and enter a start distance value of 0 m (0 ft) as described in Step 6. Depending on the return loss of the antenna or device at the end of the cable, you may see a high relative mismatch displayed at the actual length of the cable
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10
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[Cable Type]
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11
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On [Cable Type] on the right, select RG, BTS, or Cust.
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Each time you press this softkey, the selected option changes. If you select RG or BTS, you will be asked to select from a list of common cable types, the specific type of cable you are measuring [Select Cable].
If the type of cable you are measuring is not listed, you need to select Cust (Custom Cable). Proceed to Step 14 for custom cable selection.
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12
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Press [Select Cable] to display a predefined list of RG and BTS cables.
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Use the knob, or the up and down arrow keys, to scroll through the list and to highlight your chosen cable.
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13
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[Select]
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The type of cable you selected will be displayed at the upper left of the screen. Now proceed to Step 15.
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14
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For Custom Cables only (Cable Type = Cust), you must specify the characteristics of your cable. Use [Cable Atten] and [Prop Vel] to do this.
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Specify your custom cable's attenuation [Cable Atten.] in dB per 100 m (or in dB per 100 ft.)
Specify also your custom cable's propagation velocity [Prop Vel], measured as a percentage of the speed of light in a vacuum.
The values you enter here will be used for the measurement, and will be displayed at the upper left of the display.
Most cable manufacturers provide a table showing attenuation versus frequency for each type of cable. Remember that attenuation varies with frequency, so select an attenuation value that corresponds as closely as possible to the center of the frequency range you are using.
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15
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[Freq/Dist/ Calibrate]
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16
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[Calibrate]
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Follow the Calibration Wizard. If you have previously calibrated using a Frequency Range of Auto, and your frequency range lies within the previously calibrated frequency range, your analyzer will already be calibrated and you will not need to recalibrate.
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17
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Connect the antenna feedline and antenna.
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Connect the antenna feedline to the RF Out/SWR port.
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18
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(Recommended) [Level] [Autoscale]
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If you prefer to set the reference level manually, after pressing [Level], press [Ref Level]. Then enter the value you want using the numeric keypad and press [dB].
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