In mixed analog / digital networks, the HP 3776A & 3776B makes
PCM related measurements and with Option 001 the measurement set is extended to include measurements of the
parameters affecting voice frequency (4 kHz) data transmission. These measurements can be made at any suitable
analog or digital (PCM) access point in the network.
The HP 3776A & 3776B have pre-programmed measurement parameters that
can be used immediately, but users can also create their own measurement parameters and store them in non-volatile
memory; either set can be selected as required. A sequence of measurements can be created, using a controller,
and downloaded into the HP 3776A / HP 3776B. This sequence is also stored in non-volatile memory and can be
run independently by the instrument at any time.