Retevis

RA685 5W Dual band Two way Radios Amateur Radios

£37.49

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Retevis RA685 5W Dual band Two way Radios Amateur Radios

RA685 5W Dual band Two way Radios Amateur Radios

1, The dual band UHF and VHF amateur band Two way radio

Retevis RA685 with the frequency range: 144-146MHZ(RX/TX) 430-440MHZ(RX/TX). The Analog mode Ham radio.

dual band UHF and VHF amateur band Two way radio

2,  High power long range walkie talkies for hams and outdoor activities

The RA685 amateur radio with the power 5w, make the radio's communication range longer than the license-free radios. If you go out for hiking, camping or as your first  ham radio, it will be a good choice.

High power long range walkie talkies for hams and outdoor activities

3, Dual standby and dual band display

RA685 comes with the 1.6 inch display, and also supports dispaly two channels. So you can set two channels at the same time. Also dual standby function, can help you monitor two channels at the same time. 

Dual standby and dual band display

4, 128 Channels can be saved

RA685 allows you to save up to 128 channels. Also offers the multi CTCSS/DCS codes groups. It will easy to seek same frequencies which are talking. Or help you find the free channels to talk with your friends.

128 Channels can be saved

5, Easy to operate

RA685 offers the full keypad, so you can program your RA685 by its keypad. Very easy and convenient to set your radios when you are out.

Easy to operate

RA685 FM RADIO

Spec

TOTAL  Frequency Range 144-146MHZ(RX/TX) 430-440MHZ(RX/TX)
 Channel No. 128
 Channel Spacing 25/12.5kHz
Input voltage 7.4 VDC
Battery (standard configuration) 1800mAH(Li-Ion)
 Battery Life(5-5-90, High power transmission) About 14 Hours
Current  Standby ≤65mA
 Receive ≤450 mA
 Transmit ≤1.8 A @high power,850 mA @ low power
Frequency stability ±2.5ppm
 Operating temperature -20℃ to +60℃
Antenna impedance 50Ω
Walkie-talkie size(With battery, but without antenna) 121×61×33mm     
 Walkie-talkie weight(Including antenna and battery) 223g         
TRANMIT PART  Transmit output power 5W/3W/1W
 Modulation 16K0F3E@25KHz, 11K0F3E@12.5KHz    
 Spurious emission -36dBm<1GHz, -30dBm>1GHz
 FM signal-to-noise ratio 45dB@25KHz, 40dB @12.5KHz
 Audio distortion ≤5%
Modulation limit ±5.0 KHz@25 KHz,±2.5 KHz@12.5 KHz
Adjacent channel power 70dB @ 25KHz,60dB @ 12.5KHz
(300-3000Hz) Audio response +1~3dB
RECEIVE PART Receiving sensitivity 0.25μV (12dB SINAD)
Adjacent channel selectivity ≥60dB@25KHz ,≥55dB@12.5KHz
Intermodulation immunity ≥60dB@25KHz , ≥55dB@12.5KHz
Conducted spurious emissions ≤-57dB@25KHz, ≤-57dB @12.5KHz
FM signal-to-noise ratio ≥45dB@25KHz, ≥40dB @12.5KHz
Audio output power 1W @16ohms
Audio distortion ≤5%
Audio response(300-3000Hz) +1~-3dB

 

Feature

1, Frequency range: 144-146MHZ(RX/TX) 430-440MHZ(RX/TX)

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 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. Wide/narrow band (25KHz/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 5W Dual band Two way Radios Amateur Radios

£37.49