Suitable coil feedline for Surf PI?

[Martin G7MRV]

Can anyone tell me what the ideal feedline is for Surf PI coils? Ive heard that RG-6 is good, but RG-58 not so. Others have said USB cable

Is there an ideal capacitance per meter value?

Cheers

[Qiaozhi]

For the Surf-PI (which is designed for beach use) the capacitance-per-meter is not that important. RG-6 has a capacitance of approximately 68pF/m, whereas RG-58 is a tad higher at 82pF/m. This is really only of concern if you're trying to sample below 15us, which is about as low as you can go in the surf without falsing.

[6666]

Is there an ideal capacitance per meter value?

Yes the lowest possible you can find.

[Martin G7MRV]

Cheers. I'll see what I can dig out. I might have some low capacitance coax at work intended for studio use