1750Hz Tone, Connection with the Repeater, launch walkie-talkie 1750Hz Tone to repeater, you can open a command intercom stations connected to the repeater switch, It activates a signaling .
Most of the repeaters in Europe require the transceiver to transmit a 1750Hz Tone.
To change the setting of the CALL Key.
Some repeaters in Europe must receive continuous signals for a certain period of time, following a 1750 Hz tone. This transceiver is also capable of remaining in the transmit mode for 2 seconds after transmitting the tone.
Different walkie talkie has different operation method to open 1750Hz Tone.
Which Retevis Model have 1750Hz Tone Function ? How ?
Method: Keep your walkie talkie power on. Button [MONI] +[PTT] at the same time.
The user needs to establish long distance communications through an amateur radio repeater which is activated after receiving a 1750Hz tone,Press and hold on the [PTT],THEN PRESS THE [BAND] button to transmit a 1750Hz tone.
More detail pls read our RT5,RT5R,RT5RV manual . page 12.
RT6,Multiple TONE Burst Options on a NEW user Menu. Selectable Tone Burst Options Include: 1000hz, 1450hz, 1750hz, 2100hz, Choose the correst channel No.or enter the frequency shich u need, Then press and hold PTT button,the radio is transmitting now,then talk to the microphone ,you sound will be transmitted.Released PTT to receive.
When u press PTT,the LCD shows L,it means the radio is in low power.
When u press PTT,the LCD shows M,it means the radio is in Mid power.
When u press PTT,the LCD shows H,it means the radio is in High power.
Press [PTT] and then press [SOS] to transmit 1750Hz.
More detail pls read our RT6 manual.page11.
It needs this tone to connect with repeater in Europe ,Settings can be achieved through software.
More detail pls read our RT1 manual.Page19
Settings can be achieved through software
More detail pls read our RT2 manual.Page 5.
Other walkie talkie model is. U can find the operation method from manual ,http://www.retevis.com/manual
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