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PDI SAT PDI-60CMS Fixed Frequency Modulators (PDI-60CMS)

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PDI SAT PDI-60CMS Fixed Frequency Modulators (PDI-60CMS)

Brand: PDI SAT           P\N: PDI-60CMS-SAP          

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Availability: Discontinued

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PDI-60CMS SAW filtered, 60dBmV high performance fixed frequency modulator. This unit is manufactured and thoroughly tested, to comply with and in most cases exceed, all FCC recommended parameters.


  • +60dBmV RF output level (54-860MHz)

  • Frequency range: 54-860MHz plus sub frequencies channels T-7 through T-12

  • FCC offset factory set

  • Under 60dB spurious performance at full output Level

  • Professional grade SAW vestigial sideband filter for true adjacent channel operation

  • BTSC stereo compatible, encoded baseband or 4.5MHz audio Input


Output Frequency 2-134 (54-860MHz) plus sub frequencies T-7 through T-12
Output Level  +60dBmV Typical (Peak Video Carrier)
Output Level Adjustment 20dB Range
Output Impedance 75ohms (Unbalanced)
Spurious Output (@ +60dBmV Output with Aural Carrier 17dB Down) At least 60dB Below Video Carrier
Broadband Noise (@ +60dBmV Output) >80dB Below Video Carrier
Frequency Stability ±5kHz Maximum (±2kHz Typical)
Vestigial Sideband Response -20dB at IF Channel Edge; -60dB a Adjacent Video and
Aural Carrier Frequencies and
Input Type Composite Video, Negative Sync
Input Level  0.5 Vp-p Min. for 87.5% Modulation
Frequency Response ±0.75dB (10Hz to 4.2MHz)
Differential Gain 3% Typical at 87.5% Mod. Depth
Differential Phase 3 Deg. Typical at 87.5% Mod.
Hum and Noise 60dB Min. at 87.5% Modulation
Tilt  1.1% Maximum on 60Hz, 50% Square Wave
Group Delay Response Meets FCC Predistortion Requirements for Color Transmission
Input Type Unbalanced (Balanced Optional)
Input Impedance 600ohms
Input Level 250mV Min. for 25kHz Peak Deviation
Frequency Response ±1dB (50Hz-15kHz)
FM Hum and Noise 0dB
Subcarrier Frequency 4.5MHz ±500Hz
AC Line and Power 85 - 256 Vac, 60Hz, 25 Watts  High efficiency switching mode power supply 
Operational Temperature Operational Temperature 0 to 50 degrees C
Rear Panel Connections RF Output  F Female, Video Input  F Female, Audio Input Screw Terminal (stereo units RCA),  4.5MHz IF Input F Female
Front Panel Controls
RF Output Level Adjust
Aural Carrier Level Adjust
Video Modulation Depth Adjust
Audio FM Deviation Adjust (Disabled on stereo units)
Front Panel Indicators Power On
Rear Panel Control
Baseband Stereo Switch (Pre-emphasis Defeat) (Disabled on stereo units)
4.5 Audio Switch


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