Where do I set my high frequency?

[jhwelder]

I just laid my first TIG bead on aluminum with my Miller 330. It was not too bad! I just guessed at setting the high frequency control. How do I know where it should be.
Thanks

[FusionKing]

I just laid my first TIG bead on aluminum with my Miller 330. It was not too bad! I just guessed at setting the high frequency control. How do I know where it should be.
Thanks

I just maxed it out on the machine I had and it worked fine.
It was the same machine except an Airco.

[FluxThis]

I know this is an old post but I was searching and this kinda answers my question but can a few other experts chime in on this one.

I just bought a used syncrowave 250dx and the HF knob is roughly in the middle of the dial. Should it be there or should I set it to max? I downloaded the manual but there is nothing that really covers this. I did do some test beads on some thin aluminum and it seemed to be okay bit this is my first time with a tig.

Also when welding mild steel should I have the start on HF or turn it off?

Thanks for helping the noon!
Jason

[Tailshaft56]

The HF can be set for anywhere that gives you reliable ard starts. HF can cause interference with other electronic devices in the area. If it does you can turn it down till that problem is eliminated as long as your arc starts are good. IE if the wife is complaining Your messing up up her ability to watch Dancing with the Stars turn the HF down.

Hope this makes sense.

Dennis

[Craig in Denver]

The HF can be set for anywhere that gives you reliable ard starts. HF can cause interference with other electronic devices in the area. If it does you can turn it down till that problem is eliminated as long as your arc starts are good. IE if the wife is complaining Your messing up up her ability to watch Dancing with the Stars turn the HF down.

Hope this makes sense.

Dennis

I agree with Tailshaft. The manual for my 1993 Sync 250 says: "Use control to change amount of HF energy used to start and maintain the arc. Set as low a practical to prevent interfering with electronic equipment."

[davedarragh]

"High Frequency"

I usually set mine at 92.3 FM when I'm at home.

Dave

[Bodybagger]

"Causes interference" is putting it mildly. It is a super high power radio jammer with a random wire antenna that raises the noise floor on HF communications. It can actually blow the front end out of nearby radios if your cables are arranged right. It can make computers reboot randomly near the source.

But the worst thing it does is muddy up the the most reliable system of worldwide communication. Missionaries, soldiers, sailors, and others use the HF bands for communication when nothing else works, including satphones. I know it's hard to believe, but if the signal path is right, your machine might interfere with a humanitarian mission in Africa ordering a food shipment, or a ship in the Atlantic communicating to shore.

HF is global, and so is the problem with RFI in the HF bands. This is the reason why you should use the lowest HF setting that gets the job done, keep your cables neat and close together, and make sure the covers are tight on your machine.

[FusionKing]

There ya go!! Set your welder right and you are helping the planet
BB.........there is no limit to the depth of your insight.
Please keep it coming. You keep my mind going for sure.

[FluxThis]

Right on, thanks for the help.

Any insight while tig welding mild steel? Turn off the HF or set to be only for arc start ??

[thunder71]

mild steel & stainless steel set it on start & when welding aluminum use continuous.

Right on, thanks for the help.

Any insight while tig welding mild steel? Turn off the HF or set to be only for arc start ??

[popspipes]

"Causes interference" is putting it mildly. It is a super high power radio jammer with a random wire antenna that raises the noise floor on HF communications. It can actually blow the front end out of nearby radios if your cables are arranged right. It can make computers reboot randomly near the source.

But the worst thing it does is muddy up the the most reliable system of worldwide communication. Missionaries, soldiers, sailors, and others use the HF bands for communication when nothing else works, including satphones. I know it's hard to believe, but if the signal path is right, your machine might interfere with a humanitarian mission in Africa ordering a food shipment, or a ship in the Atlantic communicating to shore.

HF is global, and so is the problem with RFI in the HF bands. This is the reason why you should use the lowest HF setting that gets the job done, keep your cables neat and close together, and make sure the covers are tight on your machine.

Our local electric utility did this to me for years with their brand of HF interference!!

That sounds interesting about taking the front end out of radios if the cables are arranged right, Im thinking of those youngsters that drive by with the boom boom amps in their cars turned up to where the deaf can hear them!!! I wouldnt mind blowing up a few of those!