简体中文 English
two-way radio are the newest styles by BAO FENG, it has multi-functions, such as dual band, dual display, dual watch, its performances are excellent, the shape is fashionable, It has a good sales record in the communication market. It has been awarded the good reputation from our customers. It has many colors which can satisfy different fashion fans It is really a cost-effective LCD dual band two-way radio, if you like it, why are you hesitating? Contact us now!!!
BaoFeng Radio UV-858(RS-52) / Characteristic function
Monitor Function
Press [MONI] key to open the monitor, squelch circuit is closed, you will hear background noise; release the button to turn off the monitor, then hear the background noise.
note: if you need to check the channel if there is interference, please press this button, then turn the volume control knob, you will hear the sound of the background noise or interference.
Squelch level setting
Squelch level level by writing the frequency software settings, ranging from 0 ~ 9 (squelch open) (Jing Zaoshen) (step 1). Default settings for the 3 level of the received signal noise and the strength of the signal is a corresponding relationship, the stronger the signal, the weaker the noise. The maximum noise and the minimum noise is divided into several files, each file is called a level, the user can choose according to the actual situation. Squelch level is 0, while long squelch squelch level set, the bigger, deeper squelch. The user can set the squelch level according to the different use of the environment.
Language selection and voice switch
The utility model has the functions of voice prompt and broadcast channel, which is convenient for the operation of selecting channels in dim light or darkness. Can be done by writing software or manual function adjustment for Chinese or English conversion.
Battery power shortage alarm
This feature allows you to understand the state of battery power shortage. When your walkie talkie battery power is not enough, walkie talkie voice prompt "please charge". At this point, the proposal to replace the battery or charge the battery.
Busy channel lock (BCL)
Busy channel lock function can be turned on or off by the local dealer. When turned on, BCL prevents interference with the use of other stations that are the same as the channel you select. When the PTT key is pressed, if the channel is in use, your walkie talkie will send an alarm tone and cannot launch (you can't launch). Release [PTT] key, can stop the alarm tone, return to receive mode.
Timed out (TOT)
This function prevents false triggering of the PTT key, resulting in a long period of time the transmitter is in the state of. Therefore, the factory has been set in the time of 60 seconds, that is, a maximum emission time of about 60 seconds, after which is automatically in the receiving state, in order to prevent the burning of accidents and long occupied channel.
Analog sub audio (CTCSS) / digital sub audio (CDCSS)
Analog sub audio (CTCSS) / digital sub audio (CDCSS) is mainly used to avoid listening to the same frequency or the channel is not related to the call. If CTCSS/CDCSS is set, the effective communication range, can only receive a call set the same tone in the signalling channel; but if CTCSS/CDCSS signaling has not been set, you can hear the same frequency of effective communication within the scope of the entire call
Channel selection
This machine can store up to 16 channels. The rotating channel switch selects the channel, counter clockwise to decrease the value of the channel, and rotates clockwise to increase the channel value. If the rotation to the empty channel without any information, a "beep" sound space frequency tone alert.
BaoFeng Radio UV-858(RS-52) / Conventional parameter

General

frequency range 136.00-174.00MHz/400.00-480.00MHz
Storage channel 128
Step frequency 2.5/5/6.25/10/12.5/20/25KHz
Battery capacity H-1800m Ah(lithium battery)
Battery usage time About 12 hours
Rated voltage DC 7.4 V(Li-ion Battery)
Frequency stability ±2.5ppm
working temperature -20℃to +60℃
Frequency combination Phase locked loop frequency synthesis
Antenna impedance 50 Ω
Operation mode The same frequency simplex or different frequency simplex
Outline dimension 2 mm (not including antenna)

Transmitter

output power 5W/1 W (VHF),4W/1W(UHF)
Modulation mode (w/n) FM (F3E)
Maximum frequency offset (w/n) <5KHz(W), <2.5KHz(N)
Stray radiation ≤7.5μW
Adjacent channel power 65dB (W) ,55dB (N)
Residual wave radiation <-60 dB
Audio distortion <5%
Signal to noise ratio (w/n) 45dB(W), 40dB(N)
Sub / digital sub audio bias (w/ n) 0.7±0.1KHz (W), 0.4±0.1KHz (N)
Modulation sensitivity 8-12mV
Emission current ≤1500mA

Receiver

sensitivity <0.20μV (12dBSINAD)
Adjacent channel selectivity (w/W) ≥65dB (W), ≥55dB (N)
Audio power 1 W
Audio distortion 5 %
Intermodulation interference (w/n) ≥65dB (W), ≥55dB (N)
Receiving current ≤ 380m A

Specifications are subject to change without notice. w/n=wide / narrow brand

BaoFeng Radio UV-858(RS-52) / Detail
Dual stage, dual frequency, dual display multifunctional Radio
1 working band UHF 430 - 440 MHZ (receive / transmit)
2.16 channel storage for programming frequency and other data
3 Chinese / English language prompts, the operation is more convenient
4.50 groups of standard CTCSS, the 105 group of standard DCS
5 automatic power saving function. Reduce power consumption, in order to achieve the role of extending the working hours of the machine
6 computer programming (read and write frequency and function settings)
Battery voltage detection
1.high voltage high voltage in high electric prohibited when transmitting, according to [PTT] button or vox are invalid and issue a "beep" tone, until PTT release or end or the end of the launch voice alarm.
2.low power alarm: when the voltage is lower than a certain level, voice prompt power shortage, effective launch.
3.voltage is too low: when the voltage is lower than a certain level, the voice prompt power is not enough, the launch is invalid and the launch of "beep" sound prompt.
Note: in the low power to prohibit the firing, press the PTT key or vox are invalid.
FAQs
Battery may have run out. Please update the battery or recharge.
Battery may not be properly installed. Please remove the battery once again.
Battery life has been (about 300 times the cycle charge and discharge) please update the battery.
Make sure you are using the same frequency and sub tone tone as the rest of the group.
Other members of the group may be too far away. Verify that you are within the valid range of other walkie talkies.
Make sure the antenna is in good contact. To confirm whether the original antenna. Battery voltage is normal. The dealer to adjust the squelch level.
Please change the audio signal. At this time, be sure to change the group of all walkie talkie signal tone.
1 with other members of the communication distance is too close to the effective communication range, turn off and turn on the intercom again.
2 location is not good, such as by the tall building block, or in the basement, such as transferred to open flat ground, turn off and turn on the intercom again.
3 to avoid the possibility of interference caused by external environment or electromagnetic interference.