MMDS transmitter

MMDS transmitter ,MMDS system Technical parameterOutput: Specified output 30W±10% (in 50 ohm load digital average powers) 

Operating frequency scope: In MMDS:2500MHz~2700MHz MUDS:470 MHz -860 MHz assigns willfully channel

Band width establishment: 6MHz, 7MHz, 8MHz

Modulation system: 64QAM either COFDM or our country digital television ground broadcast must the modulation system

Carrier frequency stability: ±500Mz

Modulation error rate (MER) ≥32dB (64QAM)

The frequency spectrum side lobe rate ≤36dB (take launches channel center frequency as datum ±4.3MHz place)

Outside the adjacent channel belt the unwanted emission ≤-65dB or ≤1MW (take launches channel center frequency

(including overtone clutter) as datum)

In belt frequency sound: ≤±1dB (take launches channel center frequency as datum) 

Regular service conditon

Ambient temperature: 0°C~40°C 

Relative humidity: ≤90%

Atmospheric pressure: 86KPa~106KPa

MMDS transmitter