Chi Mei Internet Technology Co. Shanxi brief intercom: RF amplified signal receiving portion will come from the PLL frequency synthesizer circuit of the first local oscillator signal from the mixer and generating a first intermediate frequency signal at the first mixer. The first intermediate frequency signal through the crystal filter to further eliminate clutter adjacent channel. Filtered first intermediate frequency signal into the intermediate frequency processing chip, and the second local oscillator signal to generate a second intermediate frequency signal is again mixed, a second intermediate frequency signal through a ceramic filter to filter out unwanted spurious signal after the wireless digital radio, is amplified and discriminator, digital radio offer, generating an audio signal. Audio signal amplification, band-pass filter, de-emphasis and other circuits, to enter volume control circuit and power amplifier amplifies, drive the speaker to give people the information they need. Internet Technology Co., Ltd. Shanxi CMO: to provide reliable and professional overall communications security solutions to help customers achieve effective communication, security monitoring, network integration system requirements for the program, to pursue "so that our customers are more satisfied" with the service aims to Quality First, digital radio market, service-oriented, integrity-based, customer-focused, through the improvement of service and reasonable price system, Yuncheng digital radio, won the praise of our customers, access to a good social reputation - - Technology to create hope, innovation and lead the future. Yuncheng digital radio, Shanxi CMO Internet technology, digital radio system provided by the Internet Technology Co., Ltd. Shanxi CMO. Yuncheng digital radio, Shanxi CMO Internet technology, digital radio system in Shanxi Chimera Internet Technology Co. (www.sxqmhl.com) (www.sxqmhl.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page Phone or pictures on obtain the latest information, contact: Li Chi-ming.