Assume that you are conditioning a telephone circuit, using Envelope
Delay and Amplitude Equalizer CN-1234A/GCC.
Exercises 17 through 19 are
based on the above situation.
Two circuit impairments which the equalizer compensates for are
crosstalk and envelope delay.
After you have completed the equalization process, you are expected to
remove the unused equalizer sections for use elsewhere.
leave the entire equalizer connected to the circuit permanently.
restore all equalizer
When the technician adjusts DELAY, AMPLITUDE, and FREQUENCY KHZ
controls of the combination equalizer, he may notice that adjustment
of one affects the adjustment of the other. This is most noticeable
in the critical parameter areas.
Comparing the parameters shown in
figures 2-7 and 2-8, the technician can expect most interaction in the
frequency ranges from
0.5 to 0.6 kHz.
0.6 to 1.0 kHz.
1.0 to 2.6 kHz.
2.6 to 2.8 kHz.