Robotron Pty Ltd G9P 用户手册
WiNRADiO G39DDC User’s Guide
97
Once locked to a signal, the capture range automatically reduces to ± 50 Hz
(factory default value) from the signal frequency. The reason for such
reduction is to avoid "kidnapping" of the synchronization frequency by a
nearby strong signal if the carrier signal fades, as may happen especially with
long-distance reception due to ionospheric effects.
(factory default value) from the signal frequency. The reason for such
reduction is to avoid "kidnapping" of the synchronization frequency by a
nearby strong signal if the carrier signal fades, as may happen especially with
long-distance reception due to ionospheric effects.
You can adjust the Sync. lock range as a compromise value – if it is too
small, then you may lose sync in case the transmitter frequency drifts (modern
day transmitters have much better frequency stability than those of
yesteryear). On the other hand, if the Sync. lock range is too wide, then there
is an increased possibility of losing sync due to a nearby strong signal.
small, then you may lose sync in case the transmitter frequency drifts (modern
day transmitters have much better frequency stability than those of
yesteryear). On the other hand, if the Sync. lock range is too wide, then there
is an increased possibility of losing sync due to a nearby strong signal.
When the signal is locked in synchronization, this is indicated using a "lock"
symbol located in the top left corner of the frequency display
symbol located in the top left corner of the frequency display
Audio Output
The audio output function makes it possible to allocate the audio output of the
receiver to different Wave out audio devices available on your computer. This
may be handy in special applications where you might wish to use one
receiver for audio output only, another one for data decoding (via a virtual
sound card), etc.
receiver to different Wave out audio devices available on your computer. This
may be handy in special applications where you might wish to use one
receiver for audio output only, another one for data decoding (via a virtual
sound card), etc.