Hodinový rádiový modul bezdrôtový modul modul jednotka MAG

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 speakers directly. Support FM 87-108MHz, MW 522-1620KHz, SW 4.75-21.85MHz optional operating frequency. Therefore, the user only needs to the working voltage and speakers or headphones.2. Features:1gt;. Mono 2 gt; Channel Stereo. FM/MW/SW frequency rangeAmplifier 3gt;.5W2gt; Professional LCD screen. radio storage3. Parameters:1gt;. Product name: FM MW SW2gt; Radio receiving module. Model: KCX_RADIO3gt;. Working voltage: DC 3.7V4gt;. Working current: lt;5gt;. Screen Backlight: Amber6gt;. FM frequency range: 87MHz-108MHz7gt;. MW frequency range: 522KHz-1620KHz8gt;. Shortwave frequency range: 4.75MHz-21.85MHz9gt;. FM noise limit sensitivity: 30dB =lt;8dBu10gt;. MW noise limit sensitivity: 26dB =lt;60dBu11gt;. Shortwave Noise Limit Sensitivity: 26dB =lt; 32dB12gt;. FM Stereo Resolution: 98MHz gt;= 20dB13gt;.FM SNR: 98MHz gt;= 50dB14gt;.MW SNR: 1000KHz gt;= 40dB15gt;. Output power (speaker): 4ohm 5W16gt;. Output power (headphone): 100mW*217gt;. Maximum output distortion: lt;10%18gt;. Working temperature: -20℃~85℃19gt;. Working humidity:0%~95%RH 20gt;. Module size: 58x50x10mm4.FM/MW/SW features:1gt;.FM: FM radio.1.1gt;. Radio wave signal: the amplitude is unchanged, the frequency is adjusted.1,2gt;. 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;1.3gt;. 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.2gt;.MW: medium wave.2.1gt;. 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