Table of Contents
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Table of Contents
Related Manuals for Retevis RB28
Summary of Contents for Retevis RB28
- Page 1 User Manual...
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Page 2: Table Of Contents
CONTENTS Features................... Buttons and functions..............LCD display..................Battery installation................. Battery display and low battery warning........Use the charger to charge............. Turn on/off the radio............... Volume setting................Transmit and receive..............TOT function................... Set the channel................Tone code selection............... Set the calling tone................. Vox function.................. -
Page 3: Buttons And Functions
Features • LCD backlight display • 22 channels • 121 subtone codes (38 analog, 83 digital) • Busy lock • Headphone jack • 10 optional calling tones • （VOX） Vox function • High and low power • Roger beep • Companding function •... -
Page 4: Lcd Display
LCD display Scan High power Lock Volume mute Status(tx/rx) Battery power Battery installation 1) Battery: Li-ion battery. 2) Press the battery upwards to remove the battery. 3) Put the battery into the battery slot, pay attention to install the battery strictly according to the positive + negative-instructions in the slot, and press down firmly. -
Page 5: Use The Charger To Charge
Use the charger to charge 1) Make sure the radio is closed. 2) Insert the Type-c charging plug into the jack of the radio with the rechargeable battery, and plug the other end of the charger into the power socket on the wall. 3) During the charging process, the battery symbol is displayed on the mobile to indicate the charging state. -
Page 6: Tone Code Selection
key to skip to the next menu setting. 4) The radio can only be communicated when the radio is set to the same channel, and the radio is clear and no noise. Tone code selection The distribution of tone codes can reduce the mutual interference between radios, but the radios with different tone codes cannot make calls. -
Page 7: Scan Function
Scan function In the standby state of the radio mode, press the ◎ key 6 times, and "SC" will be displayed on the screen. Press ˂ or ˃ key to select on and off Press【PTT】key to save the current settings and exit the menu to start The scanning function of the radio scans the effective signal channels, which can easily scan 22 channels Note: When the scan menu setting is selected as OF, the scan function will be... -
Page 8: Power Saving Function
1) Press and hold the 【◎ 】key until the icon ( ) appears to enter the keyboard lock state. 2) Long press and hold the 【◎ 】key until the icon ( ) disappears to exit the keyboard lock state. Note: When the keyboard is locked, except for pressing the [PTT] and [Power Switch/Scan] keys, any key press will sound a key failure tone. -
Page 9: Specification Table
Specification Table GENERAL Frequency Rang 462.5500~467.7125MHz Channel capacity 22 CH Working Voltage 3.7 V Antenna impedance 50Ω Step frequency 12.5KHz TRANSMITTER Output power 2 W / 0.5 W Adjacent channel power ≥60dB TX current ≤1.35A Spurious radiation ≤7.5µW Modulation limited ≤2.5kH RECEIVER RF sensitivity... -
Page 10: Frequency Table(Pmr)
Weather channel and frequency Channel Frequency Channel Frequency 162.550MHz 162.525MHz 162.400MHz 161.650MHz 162.475MHz 161.775MHz 162.425MHz WX10 161.750MHz 162.450MHz WX11 162.000MHz 162.500MHz Specification Table GENERAL Frequency Rang 446.00625~446.19375MHz Channel capacity 16 CH Working Voltage 3.7 V Antenna impedance 50Ω Step frequency 12.5KHz TRANSMITTER Output power... - Page 11 1.This guarantee card should be kept by the user, no replacement if lost. 2.Most new products carry a two-year manufacturer’s warranty from the date of purchase. Further details, pls read http://www.retevis.com/after-sale/ 3.The user can get warranty and after-sales service as below: Contact the seller where you buy.
- Page 13 FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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