Source for flexible corrugated copper tubing?

[Ĝan Ŭesli Starling]

Wondering where I might purchase flexible corrugated copper tubing in lengths of 20 t0 24 feet, the whole length corrugated without any joints.

Not to be used for plumbing, actually, but a ham radio antenna instead. The hoop type, technically known as a "magnetic loop". The idea is to coil it up to fit inside a suitcase when not in use. Others use a cable called "Heliax", which is very expensive and has foam and another (unused) wire inside. Nor would it coil as tightly as corrugated copper tubing. Also it weighs a lot more, so would cost more as checked luggage on a plane. Hence my idea...if it exists...to use corrugated copper tubing instead.

Anybody know where I might buy it in such long lengths?

 

[John Gayewski]

I think back in the day your could get has appliance flex connectors but they were made out of brass.

 

[Sponsor]

 

[Fitter30]

https://www.amazon.com/Flex-Tubing-...2GV97GO/ref=pd_lpo_1?pd_rd_i=B002GV97GO&psc=1

 

[Ĝan Ŭesli Starling]

Thanks very kindly for your effort. But aluminum simply won't serve. Pure aluminum might, but not any of the usual alloys...their base conductivity often being just half. That can be made up for by large diameter (2 inches plus), but then the price shoot up and it wouldn't fit in a suitcase.

 

[Bannerman]

I'm not aware of any corrugated piping that is available in that length. Even if offered, I'm not certain how well it would stand-up to being repeatedly coiled tightly, assuming this is to remain a portable antenna.

Perhaps a length of heavy gauge grounding wire would be suitable as the bare wire would consume less space than an insulated wire of the same gauge. The link below shows a 25' length of 6 AWG, but other guages and precut lengths are also available.

https://www.homedepot.com/p/Cerrowire-25-ft-6-1-Solid-Bare-Copper-Grounding-Wire-050-2200A/202564820

Stranded wire is also available.

Edit: Just found this refrigeration tubing. https://www.haikechina.com/productdetail/7.html

 

[Reach4]

How about copper flashing? Cut into maybe a 3-inch wide, or narrower, long strip. Roll it up for the suitcase.

Or copper foil tape, and leave the backing on.

 

[Fitter30]

https://buyheatshrink.com/braided-s...MIp6nng_Tb8wIVI21vBB3PQg0NEAQYAiABEgJD2vD_BwE
This comes in multiple sizes to 1.5"