Radtel RT-A1 FRS Analog & Digital Two Way Radio with AI Noise Reduction Dual Noise Cancelling Walkie Talkie Voice Recording & Playback Long-Lasting Battery for Construction Site Bar Airport

Radtel RT-A1 Analog & Digital Walkie Talkie with AI Noise Reduction, Voice Recording ( please note that the radio can't communicate with other digital radio or DMR radio!)

1.Tx/Rx LED indicator

The red light illuminates during Tx, and the green light illuminates during Rx.

2.Channel Switch

Turn clockwise to increase the channel value and counterclockwise to

decrease it. There are a total of channels.

3.POWER Switch/VOLUME Controller

Turn clockwise to power on the walkie-talkie. To power off, turn counterclock

wise until a click is heard. Adjust the volume by turning the controller.

4.PTT Switch

Press PTT and speak into the microphone to call the other party. The red light

indicates transmission. If no transmit frequency is set for this channel, a beep

sound will be heard and the red light will illuminate. Release PTT to receive,

and if there is a signal, the green light will illuminate and the speaker will

activate.

5.Squelch Level

Adjust the squelch level to set when the walkie-talkie turns off and on upon

receiving signals of varying strengths. A lower squelch level allows more

background noise when turned on, resulting in potentially longer communica

tion distances but weaker anti-interference capability when activated. The

squelch level can be set via Customer Programming Software, with Level 3

being the default.

6.Transmit Timeout

The transmit timeout feature prevents a single walkie-talkie from occupying a

channel for too long and avoids damage from prolonged transmission. If

continuous transmission exceeds the limit set by Customer Programming

Software (15S to 180S), the walkie-talkie stops transmitting and an alarm

sounds. To stop the alarm, release the PTT switch, and the walkie-talkie

returns to receive mode.

7.Battery Saver Function

Set to enter battery saver mode, which can be enabled/disabled via Customer

Programming Software.

Note: There are five sleep ratio options settable in the Customer Programming

Software.

8.Monitor

Define Side Key 1 or Side Key 2 long/short press as the monitor function via

Customer Programming Software. After setting, long/short pressing the side

key switches the walkie-talkie's monitor function on/off, with Side Key 1 short

press defaulting to enabling monitoring.

9.Scan

Define Side Key 1 or Side Key 2 long/short press as the scan function via

Customer Programming Software. Three scan types are available: SE, CO, TO,

settable via Customer Programming Software；

10.Channel Lock

Define Side Key 1 or Side Key 2 long/short press as the channel lock function

via Customer Programming Software. Locking the channel prevents accidental

changes；

11.Roger Beep

Enable/disable the Roger Beep via Customer Programming Software,

defaulted to off.

12.AI Dual-direction Noise Reduction

Noise reduction has 10 levels settable via Customer Programming Software.

Define Side Key 1 or Side Key 2 long/short press as noise reduction control,

defaulted to Side Key 2 short press to enable, with levels 1-10 adjustable.

13. Language Selection

Define Side Key 1 or Side Key 2 long/short press as the language selection

function via Customer Programming Software. Six languages are manually

switchable: English, French, German, Italian, Spanish, and Russian, with Side

Key 1 long press (2S) defaulting to enable language selection；

14.Voice Operated Transmit（VOX）

VOX allows transmission without pressing the PTT button, initiating with

speech and stopping automatically when speaking ceases. Customizable via

Customer Programming Software to Side Key long/short press to enable,

defaulted to off；

Note: VOX levels are settable via Customer Programming Software with 9

levels and delay times adjustable between 0.5S and 3S.

15.Recording and Playback

Each recording is no longer than 1 minute, with a maximum of 6 recordings.

Operation: Define Side Key 1 or Side Key 2 long press as the recording and

playback function via Customer Programming Software. Once in playback

mode, short pressing Side Key 1 plays the previous recording, and short

pressing Side Key 2 plays the next.

16.Emergency Alarm

Define Side Key 1 or Side Key 2 long/short press as the emergency alarm

function via Customer Programming Software. After setting, long pressing (2S)

Side Key 2 activates emergency alarm mode, exitable by pressing PTT, with

Side Key 2 long press (2S) defaulting to enable；

17.Battery Level Announcement

Define Side Key 1 or Side Key 2 long/short press as the battery level

announcement function via Customer Programming Software, announcing

levels from 0% to 100% with 1% accuracy

18.One-key Pairing/ Wireless Pairing

Press and hold side button 2 while powering on under channel 1/2/3 to enter

One-key Pairing/PAIRING SEDN/PAIRING ACCEPT status respectively.

a) PAIRING ACCEPT，the device enters data reception mode with the green

light flashing, disabling all other operations. During data reception, the green

light remains steady，

b) PAIRING SEND，the device enters data transmission mode with the

indicator light displaying red, disabling all other operations. Upon completion,

the walkie-talkie automatically restarts.

19.CTCSS/DCS

This product supports 260 sub-tone codes, programmable with 50 analog

sub-tone codes and 105*2 digital sub-tone codes (N-phase and I-phase) via

programming software

20. Digital Mode and Analog Mode Selection:
This device supports both digital and analog modes. The function can be configured through the PC programming software. Specifically, you can select either “Analog Channel” or “Digital Channel” for the corresponding channel under the “Channel Configuration” column.

20. Digital Call Mode SettingsPrivate Call:
This function can be configured through the PC programming software. Select Private Call in the call type field and enter the desired call ID. The valid ID range for private calls is 0–8388607.Group Call:
This function can be configured through the PC programming software. Select Group Call in the call type field and enter the desired call ID. The valid ID range for group calls is 8388608–16777214.
Group receiving supports 8 lists, with 8 group IDs per list. A single channel can receive up to 8 group IDs, within the range 8388608–16777214.All Call:
This function can be configured through the PC programming software. Simply select All Call in the call type field.