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Transmission Medium Impairment Simulator Forward (Downstream) Specifications and Impairments |
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| 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 | ||
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| 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 |
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Phase
Noise
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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 |
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