Digital Indoor TV antenna digital Indoor TV antenna Ground wave digital broadcasting system is abbreviated as DTMB. DTMB is an urban public welfare digital TV approved by the state radio and television, which is a project benefiting the people. At present, it has been fully covered in the first and second tier cities and some counties in China. Citizens can receive free viewing by installing indoor and outdoor antennas. The digital signal has clear picture quality and no direction restrictions, so it's easy to watch the live broadcast. Good use effect, expand signal - receive more HD digital channels Effectively solve signal problems 1. Weak signal 2. Blurred image quality 3. Less station search Terrestrial digital television (DTMB) is a free public service. The country is free, clearer and smoother, covering Guanghui and the whole people Frequency: vhe/UHF Standard: dtmb/DMB-T/DVB-T/ATSC Interface: TV/IEC/PAL/English F port Gain: 30 DBI Working voltage: 5V Line type: 1.5C-2V Colour:black Material:ABS Size:15 x 8 x 7.5CM Package Contents: 3 * TV Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.