Retevis RT675, Руководство пользователя

Страница: 6 / 20

Note:
1.The maximum talking range is 2km, it will depended on your surroundings and
environment. It will be affected by obstructions such as hills or buildings.
2.Don’t try to use two devices which are less than 1.5mm(5 feets) apart, otherwise, you
may experience interference.
5. Changing Channels:
Press the MENU button one time, The channel number will flash on the display.
Press the up / down button to change the channel,
Press the PTT button to confirm and return to stand-by mode.
Note: If no button is pressed within 15 seconds during setting, the device will return to
stand-by mode.
6. CTCSS( Continues Tone Coded Squelch System)
Press the MENU button twice, the current CTCSS code will flash on the display,
Press the up / down button to change the 61 available codes.
Press the PTT button to confirm and return to stand-by mode.
License free radio’s operating on the FRS/PMR446 frequency band , the device has
16/22 available radio channels, If there are many device users near you, there is a
chance that some of the users are operating on the same radio channel.
To prevent that you receive signals from other users, sub-channels have been integrated.
When using CTCSS, a low frequency tone (between 67-250 HZ) will be transmitted along
with the voice signal, There are 99 available tones to choose from,
You are free to choose one of the 99 available sub-channels, Due to filtering, these sub-
channels will generally not be audible so they will not disturb the communication.
05