AMERITECH AM8a - Vsb or Vsg, DC or Ac; TX Tone or RX Tone

Meter Display (18-0037) AM8a Instruction Manual
February 10, 2000 0037-S06.L_
6-10
6.5.4 Vsb or Vsg, dc or ac: These selections place the meter across the SB or SG lead with
reference to the Ground supplied on the sleeve of the SB/SG input jack. DC
measurements result in the voltage displayed numerically as well as on the bar graph.
AC measurements display the voltage numerically and graphically and also give a
frequency measurement.
6.5.5 TX Tone or RX Tone: These selections are used to measure Level and Frequency of
Tones present on the Tip and Ring of the TX/2W or RX input jack. The Level is
displayed in dBm and the frequency is displayed in Hz. A measured value of "UNDER"
in the Level display indicates the measurement is lower than the acceptable limit (dBm
< -40). The tone display is similar to the one shown under 6.4.6.