Originally Posted by Robo
It's also worth adding that the difference between 89xxx and 9xxx other than plenum is the insulation materials used - in the case of 89182/9182 the latter has a foamed polyethylene inner sleeve (very good) and PVC outer (not that good) compared to the former's FEP Teflon for both inner and outer (excellent).
If I have understood cable specifications like impedance, capacitance and inductance correctly the lower numbers the better ?
In that case reading the electrical characteristics of the belden cables it seems like 89207 has the best numbers.
impedance (100ohm), inductance (0.15H/ft), capacitance (14pF/ft) compared to 89182 with impedance (150ohm), inductance (0.29H/ft) and capacitance (8.8pF/ft).
Well 89182 has better capacitance numbers, but other than that the 89207 specs seems better.
How important is lower capacitance compared to lower impedance and inductance ?