Freedom R8100 SERIES, Руководство оператора

Страница: 100 / 255

100
Brand (DMR submenu)
Choose DMR compliant manufacturer brand for specific testing by the R8100. The tests and display may
change to address unique aspects of each manufacturer’s radio series.
Figure 3.2.8.3.1.2-1 Voice Loopback Recording
Voice Loopback (DMR submenu)
This enables the Voice Loop feature in DMR mode (U.S. patent 5703479). Once enabled the R8100
automatically records an input message when the radio under test transmits a signal above the squelch
level setting (see Front Panel Control Knobs). A Voice Loop progress bar in the test mode zone is bold
when Voice Loopback is enabled. The maximum length of the recording is 10 seconds and a light green
progress bar shows the recording’s progress (see Figure 3.2.8.3.1.2-1). The recording continues if the
transmission is longer, but only the most recent is retained. When the radio is un-keyed the R8100
automatically switches to Generate mode and transmits the captured input message back to the radio (see
Figure 3.2.8.3.2-2). The position of the recording being played back is displayed with a dark green
progress bar. When the recorded message has been played and a 3-second settling delay has passed, the
operation mode automatically switches back to Monitor mode so another message can be recorded. This