1 Ch HDMI to QAM RF Modulator
B-QAM-HDMI-1CH
All-in-one one Channel Full HD Compact Encoder Modulator which integrates encoding MPEG-2, MPEG-4/H.264 modulation to convert HDMI/YPbPr /CVBS signals to digital RF output. The B-QAM-HDMI-1CH is ideal solution to distribute HD 720p / 1080i / 1080p Video Signals to an unlimited number of HD Television over the existing coax cables. QuestTel Encoder/Modulator capable of modulating QAM DVB-C or DVB-T or ATSC. QuestTel's Encoder Modulator series products are wildly used in public places such as the metro, market hall, theatre, hotels, restaurants and etc for advertising, monitoring, training and educating in company, schools, campuses, hospitals.
| Encoding Section | |
| Video Encoding | MPEG-2, MPEG-4 AVC/H.264 |
| Interface | x1 HDMI/CVBS/YPbPr |
| Resolution | HDMI: 1920*1080_60P,1920*1080_50p (for MPEG-4 AVC/H.264 only) 1920*1080_60i, 1920*1080_50i;1280*720_60p, 1280*720_50p CVBS: 720x576_50i (PAL);720x480_60i (NTSC) YPbPr: 1920*1080_60i, 1920*1080_50i;1280*720_60p, 1280*720_50p |
| Bit rate | 0.500~19.500 Mbps |
| Audio Encoding | MPEG1 Layer II, MPEG2-AAC, MPEG4-AAC, DD AC3 2.0 AC3 Passthrough |
| Interface | HDMI/1 Stereo /2 mono |
| Sample rate | 48KHz |
| Bit rate | 64, 96,128, 192, 256, 320, 384kbps |
| RF Section | |
| MER | ≥42dB |
| RF frequency | 30~960MHz, 1KHz step |
| RF output level | -16~ -36 dBm (71~91 dbµV), 0.1db step |
| DVB-C Modulator Section | |
| Standard | J.83A (DVB-C) / J.83B / J.83C |
| Constellation | 16/32/64/128 /256 QAM |
| Bandwidth | 6-8M |
| Symbol rate | 5000-9000 Ksps |
| DVB-T Modulator Section (Option) | |
| Standard | DVB-T COFDM |
| Constellation | QPSK, 16QAM, 64QAM |
| Bandwidth | 6M, 7M, 8M |
| Code rate | 1/2, 2/3, 3/4, 5/6, 7/8. |
| Guard Interval | 1/32, 1/16, 1/8, 1/4 |
| Transmission Mode: | 2K, 8K |
| ATSC Modulator Section (Option) | |
| Standard | ATSC A/53 |
| Constellation | 8VSB |
| ISDB-T Modulator Section (Option) | |
| Standard | ARIB STD-B31 |
| Constellation | DQPSK,QPSK, 16QAM, 64QAM |
| Bandwidth | 6M |
| Guard Interval | 1/32, 1/16, 1/8, 1/4 |
| Transmission Mode | 2K, 4K, 8K |
| System | |
| Management | Local control: LCD + control buttons |
| LCN Insertion | yes |
| General | |
| Power supply | DC 12V |
| Dimensions | 144*238*52mm |
| Weight | Approx 1kg |
| Operation temperature | 0~45C |
