Frequency operation mode:
5 1 18 generally works in the channel working mode, that is, the power is directly turned on, and the screen shows: CH-xx (such as CH-08). Press CH+ or CH- to select the working channel.
5 1 18 can also work in frequency mode. Operation:
Press and hold the scan key and rotate the power switch clockwise until the display shows "xxx.xxx (frequency point, such as 440.38+025)".
Press CH+ or CH- to change the frequency point, and the step frequency is 0.025MHz.
You can also directly input the frequency value from the numeric keypad, and the frequency value is between 430.000 and 450.000, which is an integer multiple of 0.025.
After entering xxx.xxx, the machine will automatically turn into working state. You can't enter the wrong number.
Press the scan key again, and the machine will enter the frequency scanning state, with the stepping frequency of 0.025MHz, and automatically stop when it encounters a signal frequency point.
Press CH+ or CH- to continue scanning or change the scanning direction.
Press the scan key again to exit the scanner and enter the working state.
Pressing the monitor key during scanning can also make the machine quit scanning and enter the working state.
The frequency setting steps of BF-5 1 18 are as follows:
BF-5 1 18 "press and hold" the FUNC key, then start the machine and enter the setting state. Note: Press and hold the FUNC key before starting the machine, instead of pressing FUNC before starting the machine.
1) Press and hold FUNC and turn on the power until the frequency is displayed.
2) Input the receiving frequency from the keyboard, and the storage channel in the upper right corner flashes. Press the up or down key to select the channel to be stored, and then press the PTT key to confirm.
3) If it is the same frequency communication, repeat 2; If it is different frequency communication, continue to press the "+"displayed on the left side of the FUCN screen and the receiving frequency on the current channel, input the transmission frequency from the keyboard in turn, and press the PTT key, and the transmission frequency will be stored on the current channel. To delete, press the scan key.
4) To save other channels, press CH+ or CH-to switch to other channels, and repeat 2-3 to continue saving.
5) Turn it off and turn it on again after it is lost.
Note: Different frequency communication means that the receiving frequency and transmitting frequency are different, and it is mainly used for networking through relay stations. Co-frequency communication mainly works in a small range of machine-to-machine communication.
BF-5 1 18 Frequency Replication Mode Steps:
1) Connect two machines to be copied with a special connecting cable.
2) Before starting the machine, press and hold CH- on the mother machine and the daughter machine respectively.
3) Press CH- for the master, and CH+ for the slave, and the display screen shows that copying begins.
4) After copying is completed, both machines display End.
Battery problem:
5 1 18 When receiving, sending and monitoring, the backlight of the LCD screen is dim, indicating that the power is low. Please charge it immediately.
You can charge the battery randomly or separately.
The first charging time of the battery is 10 hour, and the subsequent charging time is 6-8 hours. Generally, the battery can be charged 12 hours (talk for 2 hours, standby 10 hours).
The indicator light does not change color after being fully charged. The charger has no discharge function, and 5 1 18 is a nickel-hydrogen battery, which has no memory effect and does not need to be discharged.
5 1 18 can be equipped with a longer rubber antenna or rod antenna.
There is no sound when BF-5 1 18 is in use. Check whether the battery voltage is sufficient first. If the battery is normal, please check whether the receiving frequency of the receiver is consistent with that of other walkie-talkies. In the above case, it may be a horn problem, please send it to the maintenance station immediately.
Frequency common sense:
In order to ensure that most users' calls are not disturbed and make rational use of frequency resources, the National Radio Regulatory Commission has divided the use of frequencies and stipulated that different industries should use corresponding frequency ranges. 400-420MHz civil frequency, 430-450MHz amateur frequency and 450-470MHz public frequency.
Additional information:
The antenna of the north wind walkie-talkie identifies the working frequency point by the color of the point:
Operating frequency 140- 160MHz: yellow point antenna.
Operating frequency 150- 170MHz: white point antenna.
Working frequency 220MHz: red dot antenna
Working frequency 400-420MHz: yellow point antenna.
Working frequency 4 10-430MHz: blue dot antenna.
Operating frequency 430-450MHz: white point antenna.
Operating frequency 450-470MHz: red dot antenna.
Press and hold CH+ when the machine is turned off, and then turn it on, the screen will display "———", enter 500500, and the screen will display 43 —— 45 (that is, the current frequency range of the machine, that is, 430.000——450.00).
Main differences between 5 1 18 and 5 1 18A:
The emission power of BF-5 1 18 and 5 1 18A is 2W. The machine is compact, meticulous in workmanship, clear and loud in audio output, and the working frequency is input by digital keyboard.
5 1 18A Enhancements: * Built-in CTCSS dumb audio function. * Low voltage alarm. * Inverse frequency function, receiving and transmitting frequencies are converted to each other.
Mute CTCSS is a technology that attaches frequencies lower than audio to audio signals and transmits them together. When that interphone demodulate the received signal,
After filtering and shaping, the sub-audio signal is input to CPU, and compared with CTCSS set by this machine, so as to decide whether to turn on the mute.
The four keys 1 and A B C D are reserved extended function keys. BF-5 1 18 has only one manual, and BF-5 1 18A has the manual and technical service manual.
2. Surface and shell identification of BF-5118 and BF-5 1 18A mobile phones:
A, 5 1 18, 5 1 18A, and there is a small line of logo: BF-5 1 18A.
The horn sound hole of B, 5 1 18 is long and curved, while that of 5 1 18A is hole-shaped.
C.5 1 18 the FUNCtion keys on both sides of the speaker sound hole are SCAN, func, CH+ and CH-, while the function keys on both sides of the speaker sound hole of 5 1 18A are DIAL, func, SCAN and LOW.
3.BF-5 1 18 has no mute function, but BF-51/8a has mute function.