Channel Modulator

La description

Features: 1. Intermediate frequency, twice conversion frequency and with saw filter, small disturb side-band. 2. MCU technique is applied to audio intermediate frequency, image high frequency and RF local oscillator, with high frequency stability and accuracy. 3. Integrated circuit is applied to outputs, and each functional circuit of the overall unit adopts SMT technology, with high security. 4. LED display frequency, using up and down to select any preference frequency. 5. Convenient control, all frequency level adjustments are designed ahead. 6. High dependable and high dynamic powers are applied to part of the source of voltage. 7. We can make different channels according to the customer’s requests. MODEL the ****0M modulator function is perfect, the capability is high, and the security is nice, which is the preference equipment to construct MATV, SMATV or the CATV system. Specifications: output frequency range *****0MHz frequency accuracy � 5kHz output level **0dBV side-band suppression *0dB output impedance *5 Ω video to audio carrier ratio **0dB  **0dB level 0.6 ~ 1.5Vp-p impedance *5Ω reflection *0dB min K coefficient 4 % max （ 2T pulse ） video s/n *0dB C/L delay *0nsec frequency response � 1dB differential gain � 4 % （ modulator *7.5 % ） differential phase � 4� （ modulator*7.5 % ） level **0 ~ *0 dBm impedance *0KΩ min frequency response � 1dB distortion 1 % signal to noise radio **0dB audio image interval according to the style voltage **0 ~ **5V AC