![]() The aerial connector is standard on all TV sets, even very old ones. When equipment was developed which could use a television receiver as its display device, such as VCRs, DVD players, early home computers, and video game consoles, the signal was modulated and sent to the RF input connector. Prior to the introduction of specialised video connector standards such as SCART, TVs were designed to only accept signals through the aerial connector: signals originate at a TV station, are transmitted over the air, and are then received by an antenna and demodulated within the TV. RF modulators are used to convert signals from devices such as media players, VCRs and game consoles to a format that can be handled by a device designed to receive a modulated RF input, such as a radio or television receiver. Product parameters: - HDMI signal input: HDMI type A connector - capable of receiving all resolutions up to 1080p60Hz - RF loop input: connector Ff - RF signal output: connector Ff - one of the most reliable HDMI modulators on the market, 24/7 operation - it is possible to enter the channel name, LCN - mounting on the wall or back of the switchboard - low consumption, small dimensions Technical parameters : - HDMI input: HDMI type A connector - video resolution: 576i to 1080p - video encoding: H264 / AVC - audio encoding: MPEG1 Layer II / AAC - operating frequency band of the merging loop: 5 to 1218 MHz - merging loop attenuation: 2 dB - modulated channel frequency: 177.5 to 226.5 + 226.5 to 786.0 MHz - range of output channels: 5 to 12 + 21 to 60 - output channel type: DVB-T - signal output level: 49 to 79 dBµV (adjustable) - MER of the output signal: typically 38 dB - modulated channel bandwidth: 6, 7 or 8 MHz - bitrate: 2 - 23 MBps - constellation - modulation type: COFDM (QPSK / 16 QAM / 64QAM) - other settings: coding speed, guard interval, 2K - 8K basic configuration: Country Output type Output frequency Output level LCN | Channel name advanced configuration: RF Video and audio SID | PMT, VPID, APID | NIT, ONID | PDS | TS ID - power supply: external power adapter 230V AC / 12V DC / max 6W / Jack Ø 2.1 mm - dimensions: 155 x 120 x 60 mm - weight: 0.ASTEC UM 1286 UHF modulator, top cover taken offĪn RF modulator (or radio frequency modulator) is an electronic device whose input is a baseband signal which is used to modulate a radio frequency source. The advantage may be that the signal output is in the DVB-T standard, which when connecting a new set-top box for the DVB-T2 standard with this modulator allows to distribute one program in the DVB-T channel for a larger number of older televisions that can receive only DVB-T standard. 14411298) and make better use of the coaxial cable network. multiplexes with programmable amplifiers Johansson 6700 (cat. If necessary, the output signal can be further amplified and combined with terrestrial television. ![]() ![]() ![]() The device is designed for continuous operation 24 hours a day, 7 days a week and is suitable not only for family houses, but also for hotels, boarding houses, hospital waiting rooms, building complexes, etc. The modulator enables modulation of the local signal of the contribution device such as a satellite receiver, DVD or Blu Ray player, computer with graphics card output to HDMI, or HDD recording device of the camera system to DVB-T television multiplex and its distribution in the whole building without loss of image quality and sound. There is also a combiner at the input of the modulator, allowing to combine the outputs of several modulators into one output coaxial cable. The Johansson 8203 programmable antenna TV modulator is a professional device that enables the conversion of an HDMI signal with a resolution of 576i to 1080p / 60Hz to any digital TV multiplex in the DVB-T standard.
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