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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 Manual.
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Each time you press this softkey, the selected option changes.
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5
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[Start Freq]
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6
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Enter the start frequency using the numeric keypad.
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7
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[Hz], [kHz], [MHz], or [GHz]
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8
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[Stop Freq]
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9
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Enter the stop frequency using the numeric keypad.
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10
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[Hz], [kHz], [MHz], or [GHz]
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11
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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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12
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[Start Distance]
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13
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Enter the start distance using the numeric keypad.
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The start distance you can enter cannot be greater than the distance displayed in the Measured Distance window at the top right. If you need a larger distance, reduce the start and stop frequency span.
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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14
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[Stop Distance]
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15
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Enter the stop distance using the numeric keypad.
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The stop distance you can enter cannot be greater than the distance displayed in the Measured Distance window at the top right, but must be greater than the start distance previously entered. If you need a larger distance, reduce the start and stop frequency span.
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16
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[Cable Type]
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17
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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 20 for custom cable selection.
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18
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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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19
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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 21.
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20
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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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21
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Check whether your analyzer has already been calibrated over the frequency range and with the correct cable type that you wish to measure. If it is already calibrated over the correct frequency range and cable type, you can omit the next steps (Step 22 and Step 23) and go straight to Step 24.
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The analyzer displays its calibration status on the top left of the measurement screen. You only need to re calibrate if you:
power off the test set
change the start frequency to a new value that lies below the start frequency of your previous calibration
change the stop frequency to a new value that lies above the stop frequency of your previous calibration
change any of the jumper leads that you used for the calibration
change any of the attenuators that you used for the calibration
change the type of cable specified under the [Cable Type] menu key.
For more information, see "Calibration - Minimizing your Workload".
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22
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If your analyzer is uncalibrated, or has been calibrated over an unsuitable frequency or with the incorrect cable type, press [Freq/Dist/ Calibrate]
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23
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[Calibrate]
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Follow the Calibration Wizard.
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24
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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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25
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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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