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Transmission Medium Impairment Simulator

Forward (Downstream) Specifications and Impairments

 

PECA's TMIS Downstream Technical Specifications

Frequency Range: 50 to 860 MHz (1 GHz Passive)
Insertion Loss: 35 dB
Flatness: +/- 2 dB
Tlit (Slope): 8 dB (Maximum)
Input Frequency:

IF

 

41 to 47 MHz           NTSC

38 to 46 MHz           PAL

RF   50 MHz to 1 GHz
Input Level: IF     35 dBmV     (Nominal)
RF   15 dBmV     (Maximum)
Output Level: RF   15 dBmV     (Nominal)
Impedance:     (IF & RF) 75 Ohms     (50 Ohms Optional)
Return Loss: 16 dB     (Minimum)

 

PECA's TMIS Downstream In-Line Impairments

Phase Noise

IF, Channel 12 (207 MHz) or User Defined Channel

40dBc Max @ 10 kHz  BW     
Gaussian White Noise
Dynamic Ghost Simulation HP 11759D
AM Hum Modulation 50 MHz to 1 GHz
40 % @ 60 or 120 Hz (Produced by Arbitrary Waveform generator)
AM Noise Modulation 50 MHz to 1 GHz
Tilt Ports available for user defined and supplied impairment characteristics
Group Delay Ports available for user defined and supplied impairment characteristics
Expansion Ports available for user defined and supplied impairment characteristics