Internet Technology Co., Ltd. Shanxi Chi Mei told intercom history: Kermode photocell new invention was to collect the reflected light. "Empty" is a strong signal reflected back, "bar" reflected back is a weak signal. And the application of today's high-speed electronic components different handheld walkie-talkie offer, Kermode was measured using a magnetic coil "article" and "empty." Like a child the wires connected to the battery and then wound up in a nail jam. 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 handheld radio, after the second intermediate frequency signal through a ceramic filter to filter out unwanted spurious signal, is amplified and KAM frequency, generating an audio signal. Audio signal amplification, band-pass filter, de-emphasis circuit such as how to buy hand-held radio, enter the volume control circuit and power amplifier amplifies, drive the speaker to give people the information they need. Handheld Transceiver recommendation, Shanxi CMO Internet technology, provided by the Shanxi Jincheng handheld radio Internet Technology Co., Ltd. Chi Mei. Shanxi Chi Mei Internet Technology Co. (www.sxqmhl.com) (www.sxqmhl.com) is a leader in Taiyuan, integrated monitoring system, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Internet Technology in Shanxi CMO leadership with the staff warmly welcome all inquiries negotiations to create the Shanxi CMO Internet technology better future.