The Datum 6502 Distribution Module packages the well tried and tested Datum-Timing, Test & Measurement (FTS) high performance distribution technology in a convenient 1U high unit to distribute high quality RF sine wave signals. The unit houses a set of very low phase noise RF amplifiers while maintaining high isolation (>100 dB) between output channels. Up to ten units can be "daisy chained" to give up to 100 outputs, or each output of one unit can be used as a source for other Datum 6502 units, to give almost infinite expansion capability with virtually no signal degradation. The unit supports the G703/10 Telecom Signal format.

Other features of the Symmetricom FTS 6502 Distribution Amplifier include:

• Low Phase Noise o High Channel Isolation
• Ten Channel Output Distribution
• Daisy Chain for more than 100 Outputs
• Built-in Fault Protection
• Specfications:
  • RF Input:
    • Frequency 0.1 to 10 MHz 
    • Level 1 V rms (nominal)
  • RF Output (ten):
    • Frequency 0.1 to 10 MHz
    • Level 1 V rms (nominal)
    • Gain 1 (nominal)
    • Harmonic Distortion < -40 dB
    • Non-Harmonic signals < -80 dB
    •  Load Impedance 50 Ohms
    • Harmonic Distortion 100 dB
    • Connectors BNC
    • *Isolation between channel one to ten >130 dB 
  • Additive SSB Phase Noise:
    • (1 Hz Bandwidth) Offset from carrier
    • 1 Hz -120 dB
    • 10 Hz -135 dB
    • 100 Hz -145 dB
    • 1000 Hz -155 dB
    • 10000 Hz -160 dB
  • Alarm Output:
    • Summary alarm indicates failure of any output signal.
    • Each Output & Main Red LED
    • Non-alarm condition Relay energized (fail safe)
    • C Form contacts
    • Alarm O/P Disable Panel switch
    • Connector 9 pin D-male