Wanted: spice model of RG174/U cable

[tggzzz]

I'd like to play around with modelling lossy transmission lines in spice (preferably LTSpice or TI-TINA). Does anyone have the relevant parameters for a lossy coax cable like RG174U.

I'm not after anything very precise, but it would be good to have the right impedance, plus a plausible value for losses around, say 500MHz.

Thanks

[AlfBaz]

There's a lib of various transmission line models, based on several common cables here that may be of use.
It's intended for Orcad's spice so some of the models utilise spice directives not implemented in ltspice so some modification may be necessary
http://www.gunthard-kraus.de/Spice_Model_CD/Mixed%20Part%20List/Spice-Models-collection/tline.lib

[tggzzz]

Thanks. I've tried that and plugged values for r l c g into the TI-TINA model. Unfortunately if g is anything other than 0 it gives "model error"; I haven't yet looked to see what might be the cause.

Edit: tried it in LTSpice and it gives the useful error message that g is not supported (unless l=c=0, r != 0). For the level of accuracy I'm after, that's sufficient.