Transcript
OFDM Signal Processor Pass-through transmission of OFDM terrestrial broadcasting. Especially designed for Cable Television Stations.
◆ Up to 7 channels can be transmitted. ◆ Redundant hot-swap power supplies for emergency. ◆ Reliable operation - No mutual interference between channels. - Stable output signal level with AGC circuit. ◆ Channel setting for the same or different frequency.
A TV CATV station
B TV
OSP-01 Signal Processor
C TV
X TV
Y radio
Z radio
A B C X Y Z
C
B
A
T V
T V
T V
A B C
OSP-01 OFDM Signal Processor 【 Outline 】 The OSP-01 is a signal processor for OFDM digital terrestrial broadcasting performing; - Receiving terrestrial broadcast waves - Converting frequencies to set the same or different channels - Controlling output levels - Retransmitting each channel 【 System Configuration 】 The OSP-01 consists of the following units. - Sub rack chassis OSP-01-SR ① - Signal processror unit OSP-01-SP ② - ⑧ - Output amplifier unit OSP-01-AMP ⑨ - Power supply unit OSP-01-PS ⑩ - ⑪ - Fan unit for ventilation OSP-01-FAN ⑫
⑫ ① ⑪ ⑩ ⑧ ⑦ ⑥ ⑤ ④ ③ ② ⑨
【 System Specifications 】 OFDM signal processor Input signal Input channel Input level Input/Output impedance Output channel Output level Level monitoring Frequency characteristics Output frequency deviation IF frequency Standard squelch level AGC charcteristics Group delay characteristics Spectrum mask
Noize characteristcs (outside bands) Signal depression (outside bands) Output amplifier Input impedance Frequency characteristics Standard gain Rated output level Input/Output VSWR Output level
OFDM digital terrestrial television broadcast signal 1 channel between 90MHz and 770MHz 50dBμV - 80dBμV 75Ω (F-type connector) 1 channel between 90MHz and 770MHz 90dBμV - 100dBμV -10dB +/- 1dB within +/- 1.0dB (at fc+/-2.79MHz bands) within +/- 20kHz 56.857143MHz Operation between 40dB μV and 50dBμV within +/- 1.0dB within +/- 200nsec (at fc+/-2.79MHz bands) -20dB or less (fc +/-2.86MHz) -27dB or less (fc +/-3.00MHz) -50dB or less (fc +/-4.95MHz) -50dB or less (fc +/-9MHz) -50dB or less (fc +/-15MHz) -60dB or less (fc +/-21MHz) 75Ω (F-type connector) 90MHz - 770MHz 10dB 100dBμV 1.5 or less 5dB or less
MECC CO., LTD. 196-1 Fukudo, Ogori-shi, Fukuoka 838-0137 JAPAN TEL: +81-942-72-7266 FAX: +81-942-73-3545 URL: www.mecc.co.jp E-mail: [email protected]
