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TVM Series Frequency Agile CATV Modulator
Covers todays spectrum needs from 54-860MHz
A & B Channel video and audio inputs switched automatically on video sync Multiple IF loops are standard to support all scramblers  Contact closure for EAS IF switching
External 12MHz reference input/loop to lock carrier to educe ingress beats Remote monitoring and by networked ethernet SNMP or RS232 Integrated DSP-based BTSC stereo encoder and SAP included (TVM860S)

Specifications
RF Frequency Range                           47 to 860 MHz, 6MHz steps
Output Level                                              50 to 61 dBmV
Output Impedance                                     75 ohms
Output Return Loss                                    14 dB
C/N Inband (47-860MHz)                            68 dBc
C/N Nearband (Video + 25 MHz)                 71.5 dBc
Aggregate Noise Level (137Ch)                   60 dBc
Spurious Output, 47-860 MHz                     -60 dBc, -70 dBc typ.
Flatness within a Channel                            ƒâ€š‚± 1.0 dBp-p
RF Frequency Accuracy .                               ƒâ€š‚± 2.5 kHz
Reference Input 8.000 MHz, .                      -10 dBm

VIDEO
Video Input Level Range (for 87.5% Mod)             0.5 to 1.5 Vp-p
Video Input Impedance                                         75 ohms
Freq. Response (sinx/x)                                         ƒâ€š‚± 1.0 dB
S/N (Lum Weighted)                                               63 dB
Short Time Distortion                                             4.0%
Di.erential Gain                                                      3.0%
Di.erential Phase                                                   2.0 deg
CPM                                                                       3.0 deg