- License-free FRS two way radios
- 22 channels available
- NOAA Weather Forecast and Weather alarm function
- A small walkie talkie radios
- NOTE: Programming software: please click "support" to download
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NOAA Weather Forecast and Weather alarm function
1500mAh li-ion battery can last whole day use once be fully charged; low battery alert function helps you keep the walkie talkies always in power
Designed with VOX hands free, supports PTT push to talk and voice activation talking
With 1.28 inch screen and Type-c charging cable (1 on 2)
Spec
- Frequency Range: 462.5500 - 467.7125 MHz (RX & TX)
- Memory Channel: 22 FRS Channels + 11 NOAA Weather
- Operation Voltage: DC3.7V ±10%
- Battery Capacity: 1500mAh (li-ion)
- Step frequency: 5KHz
- Working time (5:5:9): 12 Hours
- Antenna Impedance: 50ohm
- Item Dimensions: 105*52*21 mm
- Weight: body 82.7g battery 38.3g total 128g (include battery, belt clip)
Electrical Properties:
| GENERAL | TRANSMITTER | RECEIVER | |||
| Frequency Range | 462.5500~467.7125MHz | Output power | 2 W / 0.5 W | RF sensitivity | ≤0.25uV |
| Channel capacity | 22 CH | Adjacent channel power | ≥60dB | Opening sensitivity | ≤0.20uV |
| Working Voltage | 3.7 V | TX current | ≤1.35A | Audio output | ≥300mW |
| Antenna impedance | 50Ω | Spurious radiation | ≤7.5µW | Receive current | ≤410 mA |
| Step frequency | 12.5KHz | Modulation limited | ≤2.5kH | Waiting current | ≤20mA |
Feature
- Time out timer(TOT)
- VOX feature
- Busy Channel Lockout
- Keyboard Lock (Auto/Manual)
- Squelch level(0-9 grades)
- Auto power saving function
- Audio Compand
- Monitor function
- CTCSS/DCS Encode/Decode
- Low power indication/alarm
- Scan function
- Call ringtone (10 group)
- 2-pin Kenwood accessory port
Product Reviews
Support
Firmware/Software
Firmware/Software
- win11-DriverInstaller
The win11 driver is compatible with win10, win8 and win7 systems.
- RB28-softwareV0.1
Unzip: Windows 64bits：https://www.7-zip.org/a/7z2201-x64.exe
Accreditations
Accreditations
RB28-FCC-Certificate