FAQ

How to place an order
Thanks for your interest in our products. There are two ways to place your order. If you find some models don’t show the price, please contact us before ordering and we will quote you the exact price at the ordering time. ⭐ Order by contact Please contact us by Email or WhatsApp, tell us the products you want to buy, quantity, and requirement details, and we will reply to you immediately to discuss the order details. And send you the pro forma invoice that lists the exact product cost and the shipping cost. After your confirmation, we... Read more...
Can analog video scrambling and descrambling modules be used for audio?
Can analog video scrambling and descrambling modules be used for audio? A person inquired whether our analog video scrambler could also function with audio. What occurs when I connect to audio? Our method of communication is an audio line transmitter. An analog video scrambler/descrambler module is primarily designed for composite video signals (CVBS). Its methods usually involve: Spectrum inversion or shifting Sync signal modification (line/field sync disturbance) Amplitude/phase scrambling These techniques are tightly related to the timing structure of video signals (horizontal/vertical sync). Using it for audio: Technically possible:Since the... Read more...