Volume adjustment knob Press the knob for a short time: enter the parameter setting mode, set SNR/AGC/EQ/BFO/BW and SSB sideband mode and other parameters. Press the knob for a long time (time greater than 2S): Exit the parameter setting mode. Rotate the knob left and right: When in the volume adjustment mode, the left and right knobs change the volume of the audio output of the module. Adjust the size of the parameter value when in the parameter setting mode. Frequency adjustment knob Press the knob for a short time: automatic channel search Press the knob for a long time (time greater than 2S): switch the machine on and off. Rotate the knob left and right: adjust the size of the current playing frequency value. KEY1 Press for a short time: manual tuning frequency step value switch: FM: 50KHz/100KHz/1MHz SW: 5KHz/10KHz/100KHz/1MHz AIR: 50KHz/100KHz/1MHz Long time press (time greater than 2S): save manual tuning frequency data. KEY2 Press for a short time: switch channel to reduce Long press (time greater than 2S): turn on and off mute KEY3 Short time press: switch channel plus Long press (time greater than 2S): switch Bluetooth mode or U disk mode. KEY4 Press for a short time: FM/AM/SW/AIR receiving and playing cyclically switched Long press (time greater than 2S): Turn on the short-wave single-sideband reception SSB mode. KEY1+KEY2 Press KEY1 and KEY2 at the same time for a long time (time greater than 2S): delete all stored channels in the current band. KEY3+KEY4 Press KEY3 plus KEY4 for a long time at the same time (time greater than 2S): turn on and turn off the LCD backlight. Power speaker wiring diagram ![](https://ae01.alicdn.com/kf/H4497a5d138364cea9a92c8a6a50ce796r.jpg?width=1000&height=340&hash=1340) Four FM receiving mode parameter adjustment When the module is working in FM mode, the meaning of the parameters displayed on the screen is as shown in the figure below ![](https://ae01.alicdn.com/kf/Hf07b66a0c32b4bc69f519fb17c9b508dR.jpg?width=645&height=329&hash=974) When setting the relevant parameters (SNR/AGC/EQ/STE) in the figure, press the volume adjustment knob for a short time, and the icon of the corresponding parameter will flash once as shown in the figure below. The SNR will go out once as shown in the figure below. At this time, you can turn the volume adjustment knob left and right to change the SNR value. Press the volume adjustment knob for a short time in sequence to select and adjust the AGC/EQ/STE parameters. ![](https://ae01.alicdn.com/kf/Hd1ecfba4cbe44fffb30b4d481821060cR.jpg?width=484&height=323&hash=807) Parameter Description: SNR: FM squelch level 0-32 levels, set to 0 when the squelch is closed. The larger the value, the greater the squelch, which means that the received high-frequency signal needs to be stronger AGC: The gain of FM high-frequency amplifier has 0-37 levels. When it is set to 0, it is automatic gain control, and 1-37 is the manual gain control value. The larger the value, the greater the gain attenuation of the high-amplifier. EQ: The sound equalizer adjustment value is 1-7, the larger the value, the greater the high-frequency content of the audio. STE: Turn FM stereo reception on and off. AM mode adjustment When the module is working in AM mode, the screen will display as an example as shown in the figure below ![](https://ae01.alicdn.com/kf/H5f463fb56cb24159be698e100fc34e2ag.jpg?width=423&height=242&hash=665) When setting the relevant parameters (SNR/AGC/EQ) in the figure, press the volume adjustment knob for a short time, similar to the FM frequency modulation setting parameters. Press the volume adjustment knob for a short time in sequence to select and adjust the AGC/EQ parameters. Parameter Description: SNR: AM squelch level 0-32 levels, set to 0 when the squelch is closed. The larger the value, the greater the squelch, which means that the received high-frequency signal needs to be stronger AGC: The gain of AM high-frequency amplifier has 0-37 levels. When it is set to 0, it is automatic gain control, and 1-37 is the manual gain control value. The larger the value, the greater the gain attenuation of the high-amplifier. EQ: The sound equalizer adjustment value is 1-7, the larger the value, the greater the high-frequency content of the audio. SW mode adjustment When the module is working in SW mode, the screen will display as an example as shown in the figure below ![](https://ae01.alicdn.com/kf/H7711ad44591e465ba650ca1c5a431b34b.jpg?width=434&height=251&hash=685) When setting the relevant parameters (SNR/AGC/EQ) in the figure, press the volume adjustment knob for a short time, similar to the FM frequency modulation setting parameters. Press the volume adjustment knob for a short time in sequence to select and adjust the AGC/EQ parameters. Parameter Description: SNR: AM squelch level 0-32 levels, set to 0 when the squelch is closed. The larger the value, the greater the squelch, which means that the received high-frequency signal needs to be stronger AGC: The gain of AM high-frequency amplifier has 0-37 levels. When it is set to 0, it is automatic gain control, and 1-37 is the manual gain control value. The larger the value, the greater the gain attenuation of the high-amplifier. EQ: The sound equalizer adjustment value is 1-7, the larger the value, the greater the hig Aviation reception mode adjustment When the module is working in aviation receiving mode, the screen will display as an example as shown in the figure below ![](https://ae01.alicdn.com/kf/H75a3eaae8a0a4103b7ff800c41645674g.jpg?width=415&height=274&hash=689) When setting the relevant parameters (SNR/AGC/EQ) in the figure, press the volume adjustment knob for a short time, similar to the FM frequency modulation setting parameters. Press the volume adjustment knob for a short time in sequence to select and adjust the AGC/EQ parameters. Parameter Description: SNR: AM squelch level 0-32 levels, set to 0 when the squelch is closed. The larger the value, the greater the squelch, which means that the received high-frequency signal needs to be stronger AGC: The gain of AM high-frequency amplifier has 0-37 levels. When it is set to 0, it is automatic gain control, and 1-37 is the manual gain control value. The larger the value, the greater the gain attenuation of the high-amplifier. EQ: The sound equalizer adjustment value is 1-7, the larger the value, the greater the high-frequency content of the audio. SSB mode adjustment When the module is working in SSB mode, the screen will display as an example as shown in the figure below ![](https://ae01.alicdn.com/kf/H08c88d6f3e6f46a6aec421a3dfb85bd8B.jpg?width=1099&height=538&hash=1637) When setting the relevant parameters in the picture (SNR/AGC/EQ/BFO/BW/SSB sideband), press the volume adjustment knob for a short time, and the corresponding parameter icon will flash once as shown in the figure below. The SNR will go out once. At this time, you can turn the volume adjustment knob left and right to change the SNR value. Press the volume adjustment knob for a short time in sequence to select and adjust the AGC/EQ/BFO/BW/SSB parameters. Parameter Description: SNR: AM squelch level 0-32 levels, set to 0 when the squelch is closed. The larger the value, the greater the squelch, which means that the received high-frequency signal needs to be stronger AGC: The gain of AM high-frequency amplifier has 0-37 levels. When it is set to 0, it is automatic gain control, and 1-37 is the manual gain control value. The larger the value, the greater the gain attenuation of the high-amplifier. EQ: The sound equalizer adjustment value is 1-7, the larger the value, the greater the high-frequency content of the audio. BFO: The setting value of the beat frequency of SSB single sideband reception is from -3kHz to +3kHz. To adjust the frequency, short press the KEY1 key to set the step frequency to 1Hz/10Hz/100Hz/1kHz. BW: Set the bandwidth of the audio filter during SSB/CW reception to 500Hz/1kHz/2kHz/3kHz/4kHz, in x100Hz. LSB: SSB band sideband lower sideband receiving mode. USB: SSB with sideband upper sideband receiving mode. CW: Constant-amplitude telegram reception mode. Bluetooth mode When the module is working in Bluetooth mode and not connected, the screen will display as shown in the figure below ![](https://ae01.alicdn.com/kf/H3eb9a13fa52641f0b05e4f287bf644c35.jpg?width=400&height=259&hash=659) When the module is connected in Bluetooth mode, the screen will display as shown in the figure below ![](https://ae01.alicdn.com/kf/H3eb9a13fa52641f0b05e4f287bf644c35.jpg?width=400&height=259&hash=659) U Disk Mode When the module is working in Bluetooth mode, connect the USB flash drive with songs to the USB expansion port, and the module will automatically enter the USB playback mode at this time. Pull out the U disk module will automatically switch to Bluetooth mode, the screen display as shown below ![](https://ae01.alicdn.com/kf/H66ae5d4b438c42068eb733d2731539a17.jpg?width=402&height=236&hash=638) Remote control button ![](https://ae01.alicdn.com/kf/Hab17868615334c5cae26f705efa52c65v.jpg?width=1024&height=603&hash=1627) Features A Short press the button to turn on/off B. Short press the button to cycle through FM/AM/SW/AIR/Bluetooth playback In SW mode, long press the button> 2S to turn on the SSB receiving mode C Short press the button to mute D Long press the button> 2S to turn on or off the display Short press the button to manually tune the frequency step value switch (press this button to enter the remote control tuning operation mode, if the remote control does not have any button operation within 3 seconds, it will exit the tuning mode): FM: 50KHz/100KHz/1MHz SW: 5KHz/10KHz/100KHz/1MHz AIR: 50KHz/100KHz/1MHz Long press the button> 2S to delete the currently playing channel. E Press the button for a short time to save the current tuning frequency data Long press the button> 2S to clear all saved radio data in the current receiving frequency band F Short press FM, AM, AIR to automatically search for channels Middle arrow key Short press the button to cycle through and adjust the SNR/AGC/EQ/BFO/BW/SSB parameters Down arrow Short press the button to switch the channel minus Up arrow Short press the button to switch channel plus Right arrow Short press the button to increase volume/frequency tuning/EQ adjustment/squelch SNR adjustment/AGC adjustment Left arrow Short press the button to reduce volume/frequency tuning/EQ adjustment/squelch SNR adjustment/AGC adjustment 0 Short press the button to quickly play the frequency of radio station 0 1 Short press the button to quickly play the frequency of radio station 1 2 Short press the button to quickly play the No. 2 radio frequency 3 Short press the button to quickly play the No. 3 radio frequency 4 Short press the button to quickly play the No. 4 radio frequency 5 Short press the button to quickly play No. 5 radio frequency 6 Short press the button to quickly play the No. 6 radio frequency 7 Short press the button to quickly play the No. 7 radio frequency 8 Short press the button to quickly play No. 8 radio frequency 9 Short press the button to quickly play the frequency of radio station 9 |