Retevis RA685 Walkie Talkie Dual Band, Long Range Two Way Radio 5W High Power, Amateur Radio, Ham Radio 1800mAh Flashlight FM Rechargeable Walkie Talkie Handheld for Beginner, Hunting (Black, 1Pcs)

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Press the [MENU] key, the voice prompt "OK", delete the stored channel parameters, save and return to the previous menu. The current transmitting power is medium power (more power saving, relatively moderate communication distance); The channel is the channel through which the signal is transmitted. After power on, press the [V/M] key to switch to the channel mode, press [/] to select the channel, and the channel number will be displayed on the right side of the screen. If the channel broadcast function is turned on, the intercom will broadcast the current channel mode.

When setting the analog sub-tone, you can directly input the analog sub-tone frequency through the keyboard. Both standard sub-tone and non-standard sub-tone can be selected. If it is selected by the up and down keys, you can only select the standard analog sub-tone Please note: Do not power off or stop the device during the upgrade. Otherwise, the chips may be burned out. How to use shortcut keys to switch between the amateur band and full band? If you use unauthorized accessories without authorization, all consequences caused by this are the responsibility of the user. After setting the transmitted digital sub-tone, the transmitting analog sub-tone will be automatically turned off; in the same way, setting the transmitting analog sub-tone will automatically turn off the transmitting digital sub-tone. If you need to set the transmit analog sub-tone: press → (number keys 1, 5) → → [ ] or [ ] to select the sub-tone value → , There is also the issue of OEM compatibility. Each manufacturer can use its own proprietary signaling system. A Cisco transceiver might not be able to function in an Arista ecosystem. So, ensure that you are getting equipment that is compatible with what you already have.After the PTT is released, the machine does not send a shutdown code, usually when it is relayed through the relay, let it make noise to confirm whether the signal of the machine is relayed When the battery is charged in the charger, the red light may keep flashing. This is the pre-charging process performed by the charger to protect the battery when the battery power is too low. It is a normal phenomenon. Generally, it can turn to red after 30 seconds. Normal charging state when the light is on. Channel mode to initiate a call: After selecting a channel, press and hold the [PTT] key to initiate a call to the current channel. Speak into the microphone in a normal tone. When a call is initiated, the red LED light is always on. Since the dual-standby dual-save mode is in the main and sub-channel scanning state, in the dual-segment dual-save mode, even if the power saving function of the unit is turned on, its power saving function is still invalid, and the standby time of the walkie-talkie will be shortened. In frequency mode, there is no frequency difference between the transmitting frequency and the receiving frequency

In the channel mode of section A, the channel displays the channel name (the specific name is set in the frequency writing software) Dual band, Dual Display, Dual Standby, U/V band relay cross-band transmission and reception, convenient for users to set network at any time. Two-Way Radio Batteries Your radio is only as strong as the battery that powers it. Make sure your two-way radio batteries are proven tough.This machine is equipped with LED indicators to let you easily grasp the current operating status of the machine. Indicator status After releasing the PTT button, the machine sends a shutdown code to suppress the instantaneous noise of the listener Bandwidth setting: Press → (number key 5) → → [ ] or [ ] to select the channel bandwidth (NARR/WIDE) as WIDE→ , The side buttons have two modes: short press and long press, and the following functions can be selected: off, flashlight, alarm, radio, NOAA weather forecast, monitoring, and scan. Default Dual band Ham band Radio: 144-146MHZ(RX/TX) 430-440MHZ(RX/TX) ，and you can use retevis RA685 programming software to spread spectrum into full-segment full-featured two way radio.