Clock Radio Module Wireless Module Module Unit M

Clock Radio Module Wireless Module Module Unit Magnetic Rod Antenna Rod Antenna Equipment——1. Description:It is a FM MW SW radio receiver module with built-in 4ohm 5W dual channel mono amplifier, you can connect speakers directly. Support FM 87-108MHz, MW 522-1620KHz, SW 4.75-21.85MHz optional operating frequency. Therefore, the user only needs to connect the working voltage and speakers or headphones.2. Features:1 gt;. Mono 2 gt; Channel Stereo. FM/MW/SW frequency rangeAmplifier 3 gt;.5W2 gt; Professional LCD screen. radio storage3. Parameters:1 gt;. Product name: FM MW SW2 gt; Radio receiving module. Model: KCX_RADIO3 gt;. Working voltage: DC 3.7V4 gt;. Working current: lt;5 gt;. Screen Backlight: Amber6 gt;. FM frequency range: 87MHz-108MHz7 gt;. MW frequency range: 522KHz-1620KHz8 gt;. Shortwave frequency range: 4.75MHz-21.85MHz9 gt;. FM noise limit sensitivity: 30dB = lt;8dBu10 gt;. MW noise limit sensitivity: 26dB = lt;60dBu11 gt;. Shortwave Noise Limit Sensitivity: 26dB = lt; 32dB12 gt;. FM Stereo Resolution: 98MHz gt;= 20dB13 gt;.FM SNR: 98MHz gt;= 50dB14 gt;.MW SNR: 1000KHz gt;= 40dB15 gt;. Output power (speaker): 4ohm 5W16 gt;. Output power (headphone): 100mW*217 gt;. Maximum output distortion: lt;10%18 gt;. Working temperature: -20?~85?19 gt;. Working humidity:0%~95%RH 20 gt;. Module size: 58x50x10mm4.FM/MW/SW features:1 gt;.FM: FM radio.1.1 gt;. Radio wave signal: the amplitude is unchanged, the frequency is adjusted.1,2 gt;. Advantages: The characteristics of listening to FM radio are that the interference is small, the sound is clean, it can receive stereo (two-channel) programs, and the radio range is wide;1.3 gt;. Disadvantages: Because the FM frequency band mainly propagates in a straight line and is reflected by ground objects, the signal transmitted through the radio station has a short propagation distance and a small coverage area, so you can usually only listen to the local FM program station.2 gt;.MW: medium wave.2.1 gt;. Medium waves can travel through skys and ground waves. But Skywave is very unstable. In the process of skys wave propagation, factors such as path attenuation, time delay, atmospheric noise, multipath effect, and ionospheric fading will cause signal attenuation and distortion, which will affect the communication effect.2.2 gt;. Advantages: MW can receive long-distance wireless transmission, mono. 23 gt;.Disadvantages: loud noise, strong directivity, weak anti-interference ability, average sound quality. Due to the influence of the ionosphere, there is basically no signal during the day.3 gt;.SW: Shortwave.3.1 gt;. The propagation of short waves mainly depends on skys waves. It can transmit long distances with very little power with the help of skys waves.3.2 gt;. Advantages: long distance, wide coverage, you can listen to international radio programs.3.3 gt;. Disadvantages: unstable signal deviation, loud noise, monophonic, poor sound quality.Package includes:1 FM MW SW Radio Receiver Module Unit1 Magnetic Rod Antenna1 10cm 2pin/1.25mm cable