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Multi Channel MMDS System DTV Broadband Transmitter For CATV Head End
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Product Details
| Brand Name | GOSPELL | Place of Origin | China | |
| Model Number | GT-5527 |
Product Description
GT-5527 Series?MMDS Digital Transmitter
From 5W-200W
? ? ? Multi channel Microware Distribution System (MMDS) is also called wireless cable or open-to -air cable. Internationally, MMDS normally uses 2.1- 2.3GHz, 2.3-2.5GHz or 2.5-2.7GHz frequency spans, and the most commonly used span is 2.5-2.7GHz, which also being used in China. MMDS is a mature and stable TV distribution and transmission system, which makes it an important way of transmitting TV programs to households and CATV head-ends.
? ? ? GOSPELL’s MMDS broadband transmitter GT-5527 has stable performance, with complete range of functionalities and great variety, it can support single or multiple channel transmission, in modulation modes of CMMB, DVB-T/C/S, DTMB and many others, thus is able to suit most of the needs from both regional and overseas customers.
Main Features:
Modular design eases installation, on site maintenance and power upgrade Low power consumption with linear design, further improves transmitting power and minimizes non linear distortion Large and dynamic Auto Gain Control (AGC) circuit ensures stability of output power Ultra low local oscillation phase noise, compatible for both analogue and digital signal transmission Expandable GSM/GPRS remote monitoring and controlTypical Application:
200W Indoor MMDS Digital Transmitter
? ? ? GT-5527-100D 100W outdoor MMDS Digital Transmitter conforms to following specification: <Specification and methods of measurement on MMDS transmitter of GYT 171-2001>, < Universal requirements and measurement methods of parameters for radio transmitting equipment of GBT_12572-2008>, <Safety requirements for radio transmitting equipment of GB 9159-2008> and other relevant national requirements.
Indoor Type :
Outdoor Type:
Technical Specifications:| General Specifications | Power Voltage | 180V~240V AC (50Hz±2%) | |||
| Cooling Measure | Forced air cooling | ||||
| Operating Temperature | -10~45°C | ||||
| Operating Humidity | 0~95%, non-condensing | ||||
| Dimensions(W x H x D) | 483mm(19″) x 178mm(4U) x 590mm | ||||
| Weight | 18kg | ||||
| Power Consumption | 1200W | ||||
| Connector | RF Input | F10-75K / N-50K | |||
| RF Output | N-50K | ||||
| Network Management | 10/100 Base-T Ethernet, RJ-45 | ||||
| Parameters | Symbol | Minimum | Normal | maximum | Unit |
| Input Signal Frequency | ? | VHF/UHF | |||
| Output Signal Frequency | FOUT | 2500 | ? | 2700 | MHz |
| Stability of Carrier Frequency | A | ? | ±500 | ? | Hz/Month |
| Phase Noise @10kHz | N | ? | -85 | ? | dBc/Hz |
| Maximum Bandwidth | Band | ? | ? | 200 | MHz |
| Output Power of 1dB Gain Compression Point | P1dB | 52.5 | 53 | ? | dBm |
| Input Signal EPL | PIN | 75 | 85 | 95 | dBμ |
| AGC Power Control Range | ?GAGC | 12 | 16 | 20 | dB |
| Stability of Output Power | ?POUT | 0.3 | 0.5 | 1 | dB |
| Harmonic Suppression | H | ? | ? | -70 | dBc |
| In-band Intermodulation | Spur | ? | ? | -70 | dBc |
| Output Echo Loss | RLOUT | 19 | ? | ? | dB |
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