1. Sharing Function: The AV to RF TV modulator converter can share set-top boxes across multiple rooms. 2. Multiple Formats: The RF modulator supports flexible TV format settings including PAL, NTSC, and IF, suitable for global use. 3. Wide Frequency Range: The modulator features a frequency range of 471.25 MHz to 885.25 MHz, with selectable transmit frequency, frequency display, and built-in memory to minimize interference. 4. Standard PCB Circuit Design: Designed with broadcast-standard PCB circuitry to enhance signal stability and improve image quality. 5. Applicable: The AV to RF TV modulator is compatible with various TV formats including PAL B/G, D/K, L, M, N, and NTSC. Item Type: RF Modulator RF Frequency Range: 471.25 MHz - 885.25 MHz Channel Range: PAL: 21-69; NTSC: 14-83 Default Factory Setting: Channel 21 (471.25 MHz) PAL TV Format: PAL, NTSC Sound Carrier Frequency: 4.5, 5.5, 6.0, 6.5 MHz Color: Black Material: ABS Package Contents: 1 x RF Modulator 1 x USB Cable Note: Light reflection and different display settings may cause slight color variations between the product image and actual item. Measurement may vary by +/- 1-3 cm.