How to upgrade firmware？

How to set RA685 EU VHF UHF Dual Band to full frequency full function mode?

Attention please,

1. The antenna of RA85 GMRS is not removable, which is glued with glue, maybe damaged by forcibly breaking it off.

2. While RA685 EU Dual Band antenna is removable.

Description:

•Frequency measurement function, View the frequency of other devices at any time.

•1.6-inch screen,Fashlight lighting function,FM, NOAA(only available for GMRS RA85)

•USB charging function, you can use the USB charging cable to directly charge the two way radio.

Features

1. Frequency range:

RA685 :144-146MHZ(RX/TX) 430-440MHZ(RX/TX)   RA85: GMRS

2. Dual band, Dual Display, Dual Standby

3. High, middle, and low power switching to meet the power requirements of users at different distances, more energy-saving and power-saving

4. Up to 128 memory channels(RA685) / 60 memory channels (RA85) for programming frequency and other various data.

5. Multiple display modes such as channel number, frequency, channel frequency, channel name, etc.

6. CTCSS/DCS, DTMF signaling, reject redundant calls from other stations.

7. The tail tone is eliminated to avoid the impact noise from the speaker after the call is over.

8. VOX voice-activated transmission, no need to press the PTT button to talk normally.

9. Emergency alarm, ANI identification and other functions through DTMF.

10. DTMF, CTCSS (60.0 -259.9 HZ), DCS signaling codec function.

11. 8 step frequency selection (2.5K, 5.0K, 6.25K, 10.0K, 12.5K, 20.0K, 25.0K, 50.0K).

12. Automatic power saving function to extend battery life.

13. SOS emergency alert function.

14. Computer programming function.

15. RA685 : Wide/narrow band (25KHz/12.5KHz) selection function.

      RA85 : Wide/narrow band (12.5KHz) selection function.

16. Digital FM radio (receiving 65-108MHz).

17. Direct selection of keyboard numbers for menu items, the transmit and receive frequency can be manually input.  

18. Special CTCSS/DCS (frequency hopping function).

RA685 Frequency Range: VHF 144-146MHz(RX/TX) & UHF 430-440MHz(RX/TX)

RA685:128Channels,Dual band, Dual Display, Dual Standby

Up to 128 memory channels for programming frequency and other various data

RA685: 5W / 3W / 1W ,Adjustable Power

High, middle, and low power switching to meet the power requirements of users at different distances, more energy-saving and power-saving.

RA85: Frequency Range:GMRS,10 NOAA Weather Channels

RA85: 60 Channels,Dual Display, Dual Standby

RA85: 5W / 0.5W ,Adjustable Power

High and low power switching to meet the power requirements of users at different distances, more energy-saving and power-saving.

RA85: 10 NOAA Weather Channels

Keep receiving latest weather forecast; Please attention,NOAA function is only available for RA85,not for RA685.

RA685/RA85: Compact and Portable

Size(with battery, but without antenna):121×61×33mm , Weight (including antenna and battery):223g

RA685/RA85: Long Range Communication

Talking Coverage depends on environments,TX power,and battery power.With the help of a repeater,the talking distance will be longer.

RA685/RA85: 1.6 Inch Screen,Flashlight Lighting Function

Multiple display modes such as channel number, frequency, channel frequency, channel name, etc

RA685/RA85: 1800mAh Rechargable Li-ion Battery

Automatic power saving function to extend battery life

RA685/RA85: Convenient USB Charging Way

USB charging function, you can use the USB charging cable to directly charge this two way radio.

RA685/RA85: VFO Manually Input Frequency

Direct selection of keyboard numbers for menu items, the transmit and receive frequency can be manually input

RA685/RA85: Frequency Measurement Function

Frequency measurement function, copy the frequency of other devices at any time

RA85/RA685: Special Digital Mute Function

CTCSS/DCS,DTMF signaling code function reject unnecessary calls from other stations,CTCSS (60.0 -259.9 HZ)

RA685/RA85: SOS Emergency Alert Function

Emergency alarm, ANI identification and other functions through DTMF

RA685/RA85: VOX Function

VOX sound activated,no need to press the PTT button to talk,response in time

RA685/RA85: Digital FM Radio (Receiving 65 -108MHz)

Suitable for More Applicable Enivronments

RA685/RA85: Structure Presentation

Technical Parameters:

Package includes：

1 x RA685/ RA85 Two Way Radio

1 x Antenna(RA85 GMRS NOT removable
; RA685 EU removable)

1 x Battery

1 x Manual

1 x USB charger

Questions & Answers

Q1: How to set RA685 EU VHF UHF Dual Band to full frequency full function mode?

A1:  ▶Press PTT + Key 5 to power on, the screen shows 【Amatuer】 is switched to (144-146, 430-440MHZ frequencies can be transmitted/received, and other frequencies can only receive and not transmit).

▶Press PTT+V/M key to turn on, the screen displays 【FACTORY 】to switch to (full frequency in the UV band can be transmitted/received).