Quality RF Services, Inc.  System Loading Calculations
System: Sumner Cable - Wellington, KS Fwd BW MHz 4.0 Fwd Noise -59.2 Date: March 11, 1997 - to Philip Brown Rev BW MHz 4.0
NODE QSJA550 QSJM550 QSJB550 QLEP355 QLEP355 Manufacturer Harmonic PD/2W PD/2W Adv. PD/2W PD/2W PD/2W Specifications 750 550 550 550 550 550
NOISE FIGURE 18.2 6.5 6.5 6.0 6.0 6.0 CTB Output Level (dBmV) 32.0 35.0 35.0 49.0 47.0 47.0 CTB RATING (dB) -69.0 -83.0 -83.0 -64.0 -62.0 -62.0 XMD Output Level (dBmV) 32.0 35.0 35.0 49.0 47.0 47.0 XMD RATING -69.0 -83.0 -83.0 -63.3 -64.0 -64.0 2ND Output Level (dBmV) 32.0 35.0 35.0 49.0 47.0 47.0 2ND RATING (dB) -65.0 -73.0 -73.0 -70.3 -62.0 -62.0 CHANNEL CAPACITY 80 77 77 77 77 77 Manufacturer Tilt (dB) 0 5 5 9 7 7 Hum Specification (dB) -65 -65 -65 -65 -65 -65
System Specifications NODE Trunk 1 Trunk 2 Bridger LE #1 LE #2
Amplifier Input (dBmV) 15.0 9.0 9.0 20.0 17.0 17.0 Operation Gain (dB Cable) 22.0 25.0 25.0 28.0 29.0 29.0 Desired Output Tilt (dB) 0.0 5.0 5.0 11.0 11.0 11.0 Amplifier Output (dBmV) 32.0 35.0 35.0 48.0 46.0 46.0 Channel Loading 77 77 77 77 77 77 Cascade Length 0 6 6 1 1 1
Calculated Specifications NODE Trunk 1 Trunk 2 Bridger LE #1 LE #2
CNR    -53.9 -53.9 -73.2 -70.2 -70.2 CTB    -67.4 -67.4 -67.4 -66.8 -66.8 XMD    -67.4 -67.4 -66.7 -68.8 -68.8 LOG      10.0 2ND    -65.2 -65.2 -71.3 -63.0 -63.0     HUM    49.4 49.4 -65.0 -65.0 -65.0
CALCULATED SYSTEM SPECIFICATIONS Forward Trunk No Fiber Forward System Bridger Out Forward System 1st LE Out Forward System 2nd LE Out STANDARDS CNR CTB XMD 2ND HUM -50.9 -50.9 -50.8 -50.8 -61.4 -57.9 -55.2 -53.2 -61.4 -57.6 -55.5 -53.8 -62.2 -61.7 -59.3 -57.8 -43.4 -42.7 -42.1 -41.5 CNR 43.0    CTB 53.0 CW XMD 53.0 NTSC 2ND 59.0 CW HUM 39.0
COMMENT: NOTE ALL TILT & OUTPUT LEVELS << 77 CHANNELS >>   ALL POWER DOUBLED SYSTEM 12 AMPLIFIER CASCADE and   Advanced Power-doubled Bridger 2 LINE EXTENDERS

Our system distortion spread sheet looks similar to the sample above.