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Retevis RA35 - User Manual

Retevis RA35
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Users manual
RA35
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Summary

Before Use the device

Remove the belt clip

Instructions for removing the belt clip before inserting batteries into the device.

Installing the batteries

Steps for correctly inserting 4*AAA batteries into the device compartment.

Using the device

Turning the device on;off

Procedure for powering the device on and off using the on/off button.

Adjusting the volume

How to increase or decrease the device volume using the Up and Down buttons.

Low Battery Indication

Explanation of battery level icons and low battery alerts on the LCD screen.

Receiving and transmitting communications

Steps for receiving and transmitting signals, including PTT button usage and mic placement.

Changing Channels

Guide to changing radio channels using the MENU and directional buttons.

CTCSS and DCS Settings

How to set CTCSS/DCS codes for private communication and understand sub-channels.

VOX Hands-free Function

Instructions for enabling and adjusting VOX sensitivity for hands-free operation.

Scanning for active channels

How to activate and use the SCAN function to find active channels.

Monitor Function

How to activate the monitor function to listen for signals without transmitting.

Setting the Call Tone

Procedure for selecting and setting one of the 10 available call tones.

Sending a Call Tone

How to transmit a selected call tone using the CALL button.

Roger Beep On;Off

How to enable or disable the roger beep confirmation tone after transmission.

Backlit Display

How to activate the LCD backlight and its duration.

Headset Connection

Instructions for connecting and using a compatible headset with the device.

Battery Saving Function

Explanation of the automatic battery saving mode and its effect.

Built-in Flashlight

Information on using the built-in flashlight for signaling or illumination.

Lock and Unlock Device

How to lock and unlock the device's buttons to prevent accidental operation.

Technical Specifications

US Frequency Table

Table listing the frequency channels available for US operation.

Summary

Before Use the device

Remove the belt clip

Instructions for removing the belt clip before inserting batteries into the device.

Installing the batteries

Steps for correctly inserting 4*AAA batteries into the device compartment.

Using the device

Turning the device on;off

Procedure for powering the device on and off using the on/off button.

Adjusting the volume

How to increase or decrease the device volume using the Up and Down buttons.

Low Battery Indication

Explanation of battery level icons and low battery alerts on the LCD screen.

Receiving and transmitting communications

Steps for receiving and transmitting signals, including PTT button usage and mic placement.

Changing Channels

Guide to changing radio channels using the MENU and directional buttons.

CTCSS and DCS Settings

How to set CTCSS/DCS codes for private communication and understand sub-channels.

VOX Hands-free Function

Instructions for enabling and adjusting VOX sensitivity for hands-free operation.

Scanning for active channels

How to activate and use the SCAN function to find active channels.

Monitor Function

How to activate the monitor function to listen for signals without transmitting.

Setting the Call Tone

Procedure for selecting and setting one of the 10 available call tones.

Sending a Call Tone

How to transmit a selected call tone using the CALL button.

Roger Beep On;Off

How to enable or disable the roger beep confirmation tone after transmission.

Backlit Display

How to activate the LCD backlight and its duration.

Headset Connection

Instructions for connecting and using a compatible headset with the device.

Battery Saving Function

Explanation of the automatic battery saving mode and its effect.

Built-in Flashlight

Information on using the built-in flashlight for signaling or illumination.

Lock and Unlock Device

How to lock and unlock the device's buttons to prevent accidental operation.

Technical Specifications

US Frequency Table

Table listing the frequency channels available for US operation.

Overview

The device is a Retevis RA35 walkie-talkie, designed for two-way radio communication. It operates on the FRS (Family Radio Service) MHZ frequency band, offering 22 available radio channels. The device is compact and features an antenna, a PTT (Push-to-Talk) button, an On/Off button, DOWN/Mon (Monitor) button, a Menu/Lock button, a Lamp button, an UP/Scan button, a Mic (microphone), an LCD display, and a speaker. It is powered by 4 AAA alkaline or rechargeable batteries (not included).

Function Description:

The RA35 allows users to communicate over a range of up to 2 km in open fields, though this range can be affected by obstructions like hills or buildings. It supports CTCSS (Continuous Tone-Coded Squelch System) and DCS (Digital Coded Squelch) with 99 available sub-channels (38 CTCSS + 61 DCS) to prevent interference from other users on the same radio channel. The device includes a VOX (Voice Operated eXchange) function for hands-free operation, allowing transmission to be activated by voice or other sounds. A scanning feature helps find active radio channels. It also has a monitor function to listen for weak signals and a call tone feature with 10 selectable tones. A built-in flashlight provides utility for sending light signals or general illumination.

Important Technical Specifications:

  • Frequency Band: FRS
  • Channels: 22 channels
  • Sub-code: CTCSS 38 + DCS 61
  • Transmission Power: <=500mW ERP
  • Range: Up to 2 Km (Open field)
  • Battery Type: 4xAAA Alkaline/rechargeable batteries (Not included)
  • Modulation Type: FM – F3E
  • Channel Spacing: 12.5kHz (Narrow band)

US Frequency Table:

CH Frequency CH Frequency
1 462.5625 12 467.6625
2 462.5875 13 467.6875
3 462.6125 14 467.7125
4 462.6375 15 462.5500
5 462.6625 16 462.5750
6 462.6875 17 462.6000
7 462.7125 18 462.6250
8 467.5625 19 462.6500
9 467.5875 20 462.6750
10 467.6125 21 462.7000
11 467.6375 22 462.7250

Usage Features:

  • Turning On/Off: Press and hold the On/Off button for 3 seconds. A beep sound confirms the action.
  • Volume Adjustment: Use the Up button to increase volume and the Down button to decrease it. The volume level is shown on the LCD screen.
  • Low Battery Indication: The LCD screen displays a battery icon with squares indicating the charge level (Full, 2/3, 1/3, Empty). When low, the icon flashes, and a beep sounds, signaling the need for battery replacement or recharge.
  • Receiving/Transmitting: The device is in 'Reception' mode when ON and not transmitting. A signal reception is indicated on the LCD. To transmit, press the PTT button, hold the device 5-10cm from your mouth, and speak in a normal tone. Release PTT to finish transmitting.
  • Changing Channels: Press the MENU button once, then use the Up/Down buttons to select a channel. Confirm with the PTT button. If no button is pressed for 15 seconds, the device returns to stand-by.
  • CTCSS+DCS Setup: Press the MENU button twice. Use Up/Down buttons to change the 99 available codes. Confirm with PTT.
  • VOX (Hands-free) Function: Press the MENU button three times. Use the Up button to set VOX sensitivity (levels 1-3, with 3 being most sensitive) or the Down button until "OF" appears to turn VOX OFF. Confirm with PTT. VOX is not recommended in noisy or windy environments. PTT button overrides VOX mode.
  • Scanning: Press and hold the UP button for 2 seconds to activate the "SCAN" function. The device scans channels 1-22. It stops on an active channel, allowing listening. Scanning resumes automatically when the transmission ends. Pressing PTT during a scan returns the device to stand-by on the found channel.
  • Monitor Function: Press and hold the DOWN button for about 3 seconds to activate the monitor. Release the DOWN button to return to stand-by.
  • Setting Call Tone: Press the MENU button four times. "CA" is displayed. Use Up/Down buttons to change the call tone (10 available). Confirm with PTT.
  • Sending Call Tone: Press the CALL button once quickly to transmit the selected call tone on the current channel.
  • Roger Beep On/Off: After releasing the PTT button, the device can send a roger beep. Press the MENU button five times ("Ro" displayed). Use Up/Down buttons to enable/disable the roger beep. Confirm with PTT.
  • Backlit Display: Press any button (except MENU) to activate the LCD backlight for about 5 seconds.
  • Headset Connection: The device supports a headset (if included) via a 2.5mm jack on top. The headset's PTT button functions like the device's. Use the headset's microphone when using its PTT. Connecting other headsets may damage the device.
  • Lock/Unlock Device: Press and hold the MENU button for 3 seconds to lock the device (button lock icon appears on LCD). Press and hold MENU for 3 seconds again to unlock.

Maintenance Features:

  • Battery Installation: To install batteries, first pull the belt clip latch away from the device. Slide down the battery compartment cover. Insert 4 AAA batteries, ensuring correct polarity. Replace the battery cover.
  • Battery Saving Function: The device automatically enters economy mode after 6 seconds of inactivity. This does not affect reception and reactivates when a signal is detected.

Retevis RA35 Specifications

General IconGeneral
BrandRetevis
ModelRA35
CategoryTwo-Way Radio
LanguageEnglish

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