D.2 Spare Tow Cable; Figure D-2: Setup For Measuring Tow Cable Characteristics Using A Function - Klein 5000 V2 Series Operation And Maintenance Manual

Function
Generator
Figure D-2:
Use the formula
dB = 20 log (Vout /Vin)
For example, if at 15 MHz, you get a reading of 160 mv, then
dB = 20 log (0.16/1.0) = 15.9 dB loss.

D.2 Spare Tow Cable

Given the nature of high speed towing, cable problems can occur. For
troubleshooting purposes we suggest that you have on hand a lightweight Kevlar
reinforced 150-meter (minimum length) tow cable. This extra cable will allow you
to bypass your primary tow cable assembly and speed up fault isolation.
Cable
Assembly
Setup for Measuring Tow Cable Characteristics using a
Function Generator, Terminator and Oscilloscope
NOTE The whole cable assembly must not exceed an attenuation of greater
than 24 dB of insertion loss at 15 MHz. We suggest a working loss of 24 dB
at 15 MHz.
Spare Tow Cable
50 ohm terminator
D-3
Scope