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Model 1685
Multi-Carrier Signal Generator
Operation Manual
Revision 2.4
Date 27 October 2016
Page 1: ...Model 1685 Multi Carrier Signal Generator Operation Manual Revision 2 4 Date 27 October 2016 ...
Page 2: ...DUCTION 3 1 1 Symbols Used 3 1 2 Safety Instructions 3 2 OPERATING INSTRUCTIONS 4 2 1 Front Panel 4 2 2 Rear Panel 4 2 3 AC Operation 5 2 4 Operating Conditions 5 2 5 Water Ingress and Mounting 5 3 SYSTEM CARRIER TO NOISE MEASUREMENT 7 4 SERVICING INSTRUCTIONS 8 5 SPECIFICATIONS 8 ...
Page 3: ...instrument are marked with this symbol Consult this manual to learn the nature of the hazard and proper actions for safe operation Indicates an earth ground terminal Indicates possibility of electric shock Indicates a protective conductor terminal 1 2 Safety Instructions Read and follow all instructions in this manual Risk of electrical shock exists if the unit is opened when AC is connected Clean...
Page 4: ...rier amplitude adjustments controls Each control allows adjustment of at least 13 dB to the associated carrier 3 Carrier On Off toggle switches On Off controls for individual carriers 4 Output level attenuator toggle switches switches allow output level attenuation of all carriers from 0 dB to 70dB in 10 or 20 dB steps 2 2 Rear Panel 1 RF OUT Female RF output F connector Connect to the cable syste...
Page 5: ...ent is intended for use under the following environmental conditions Use outside of these conditions may result in safety hazards incorrect operation or damage 1 Indoor use 2 Altitude 2000 meters 3 Ambient temperature 0 C to 50 C 4 Relative humidity 80 up to 31 C 50 at 40 C 5 AC voltage 10 of nominal some temporary over voltage tolerated 6 Transient voltage spikes 2500 Vp 7 Pollution degree 2 or l...
Page 6: ...e point of origin and adjust to system amplitude NOTE If the test carrier is not at system level record the difference in dB and add this quantity to the final reading Now connect a spectrum analyzer or signal level meter to the system test point NOTE For tap levels below 15 dBmV the receiver may require pre amplification to assure sample noise levels are significantly above the receiver noise flo...
Page 7: ...ude Stability 0 5 dB setting Residual Hum 0 1 Output Impedance 75 Ohm Spectral Purity spurious harmonic 60 dBc Frequency MHz Max output level per carrier dBmV 5 860 861 1000 1001 1200 For hardware configurations up to 2 carriers 59 57 55 For hardware configurations up to 4 carriers 55 53 51 For hardware configurations up to 6 carriers 52 50 48 For hardware configurations up to 8 carriers 50 48 46 ...
Page 8: ...ransportation to the factory is to be prepaid by the customer Authorization RMA by Applied Instruments is required prior to shipment Applied Instruments assumes no liability for secondary charges or consequential damages and in any event Applied Instruments liability for breach of warranty under any contract shall not exceed the purchase price of the instrument shipped and against which a claim is...