Tregr's
Can someone give an explanation of the note following the statement below
from Austel TS 002?
5.4.4 Impedance
The impedance presented by the CE in the Hold State shall have a return loss
greater than 10 dB over the range of 300 Hz to 600Hz and 15 dB over the
range 600 Hz to 3.4 kHz against the test network shown in Figure 4.
"Note: It is recommended that CE requiring a higher level of impedance
matching may additionally incorporate a 600 ohm network as a
switchable option"
I understand the first part part, but what is the meaning of the note?
Does this mean I can use a 600 ohm network instead of complex network?
Not very clear.
Thank you in advance.
Regards, Duane