Optimum fail safe length for insulated SSB / HF backstay ?

[ianabc]

Just about to attach Sta Lok insulators to the backstay.

I am wondering if 32 feet is the failsafe length allowing communications should the antenna tuner fail?

 

[gfbalduc]

Normally, 7 meters is the bare minimum for the ATU to work.

32 feet will be OK.

 

[KellysEye]

I remember a Ham radio guy saying to me "if you need an emergency antenna string up 30 feet of wire".

 

[jerryat]

[ QUOTE ]
I remember a Ham radio guy saying to me "if you need an emergency antenna string up 30 feet of wire".

[/ QUOTE ]

Yes, similar to what I was advised - actually 11 metres - which is what I have between the backstay isolators. Has worked superbly over the last 10 years or so, though with an ATU.

 

[Hoolie]

Is there a maximum? My backstay is about 16/17 metres.