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Appendix A
S p e c i f i c a t i o n s
Input frequency | 54 through 860 MHz (excluding data carrier frequency) |
HRC/IRC frequency assignments | Downloadable |
Number of channels | 136 carriers per cable, 1 or 2 cables |
Analog | 1 channel per carrier |
Digital | More than 1 channel per carrier, content dependent |
Dual A/B cable switching | Optional A/B (field upgradeable) |
Input analog video level | 0 dBmV through +15 dBmV |
Input analog sound level | |
Average digital input level | |
Data carrier | |
Frequency | 75.250 MHz or 72.75 MHz or 104.2 MHz |
Bandwidth | 1.5 MHz |
Level | |
Video s/n | 49 dB @ 0 dBmV input level |
Output frequency accuracy | ±150 kHz |
Return loss |
|
Input | 6 dB minimum |
Output | 8 dB minimum |
Spurious output | |
Composite second order distortion | |
Second order distortion | |
Composite triple beat distortion | |
| |
Hum modulation distortion | 3 IRE |
Output level | 10 through 15 dBmV |
Isolation (input/output) | 70 dB minimum |
Differential phase | 10 degrees (maximum) |
Analog descrambling method (optional) | Gated sync suppression or dynamic gated sync suppression, video inversion, audio |
| privacy, and Hamlin compatibility |
| |
Screen size | 352 x 480 pixels (configuration dependent) |
Message/barker capacity | Up to 40 pages (configuration dependent) |
Mechanical security | Standard: security screws, unichassis construction |
DCT 2000 Installation Manual