The meter used with Noise-Level-VU Measuring Set Model TTS-37B has a
scale marked VU-DB. The purpose of this scale is to indicate voice peaks in
a. dBm and tone levels in VU.
b. dBm and tone levels in dB.
c. volume units and tone levels in dB.
d. volume units and tone levels in dBm.
The meter scales of Noise-Level-VU Measuring Set Model TTS-37B are
offset 10 dB. If the meter measures a level of +5 dBm on the VU-DB scale,
it should read a level on the dBrn scale of
provides vertical deflection signals to the mainframe vertical amplifier
circuit. The vertical amplifiers may also be used
a. for matching input impedance, image brightness and to control the
deflection to the mainframe vertical amplifier.
c. In the mainframe horizontal axis compartment for calibrated X-Y
d. In the amplifier mode to insert an externally applied sweep signal.
11. Delay Equalizer Group, OA-880/FTC is always installed at the receiving
end of a communication circuit.
One feature of its design is that it
a. 12 equalizer sections that select a small portion of the receive
b. sweep circuits that automatically sample 12 small portions of the
received signal spectrum for amplitude compensation.