Triplett CableRater- PN: 3279 - Manual (Page 14)

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9.4 Calibrating the Transmitter
To calibrate the Transmitter, a patch cable is used to connect the
Output jack of the Transmitter to the Input jack of the Receiver. See Figure 5.
UNLOCK
Figure 5
Turn On the Transmitter by holding the UNLOCK button down and moving the
ON/OFF switch to the ON position. The BATTERY TEST indicator must flash, and
must continue to flash at intervals. If the indicator does not flash, replace the
depleted battery with a fresh battery.
Turn On the Receiver by pressing and releasing the Meter Push On/Off button. If
desired, turn On the Backlight by pressing and releasing the Backlight Push On/
Off button.
Observe the LCD display.
The Low Battery symbol must not be displayed. If it is, replace the de-
pleted battery with a fresh battery.
APO may or may not be displayed, depending on the selection made by the user.
A value between -4.0 dB and 4.0 dB will usually be displayed. If a different read-
ing is displayed, such as Underrange (see Figure 4), check the patch cable to