jotron TR-910, Руководство оператора и инструкция по установке, Страница: 43 / 48

5.3 Basic Opera Ɵ on
5.3.6 Func on screen - Se ng squelch level
The TR-910 has a S/N squelch which automa cally adapts itself to the background noise, so normally there will
be no need for adjustment during normal opera on. The value is in dB S/N and the default value is 12 dB. The
value can be adjusted between 5 dB and 20 dB. Low values will increase the risk for false squelch li which can
be annoying. In most cases the default value of 12 dB will be the best choice.
• Press scroll/select to open the func on screen.
• Press the SQL shortcut to open the squelch se ng screen.
• Rotate scroll/select to adjust the threshold level.
• Press the ENABLE or DISABLE shortcut to toggle the squelch on or o ff .
5.3.7 Func on screen - Se ng frequency and channel store
The frequency se ng screen is used to select or store frequency to a channel. Up to 100 channels can be
stored and the
fi rst fi ve channels are available as shortcuts in the home screen.
To select a frequency:
• Press scroll/select to open the func on screen.
• Press the FREQ shortcut to open the frequency se ng screen.
• Rotate scroll/select to change the frequency and use the arrow keys for changing posi on of the
adjustment.
• Press the SELECT shortcut to select the frequency, or;
Alterna vely, to store a frequency to a channel:
• Press the STORE shortcut to open the channel store screen.
• Rotate scroll/select to select any channel posi on. Channel 1 - 5 is visible on the home screen.
• Press the STORE shortcut to store the current frequency. If the channel already contains a frequency, it
can be cleared or overwri en.
Doc. No.: 103614 TR-910 Operator Rev. AB
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