Rega RB300 Anti-skating problem


I have a Rega RB300 tonearm and a Grado Master Reference cartridge ,
currently the VTF is 1.6 grams and the anti-skating is set to zero .
When using Cardas records that have blank tracks the tone arm wants to move to the outer edge of the track .
This is with the anti-skating is set to zero ! if I set it to anything above it moves outward even faster .
The only way I can have the cartridge not move on the blank tracks is to set the VTF to at least 2 grams .
Checked tt ( Merrill Heirloom ) level , Checked plater level ,
the only thing I can think of is the anti-skate magnet is not working as intended ( the tonearm was re-wired ) .
Any thoughts or suggestions ?
Thanks

128x128vair68robert

Showing 2 responses by mijostyn

OK vair68. With anti skate set correctly the arm will always move to the outside on a blank disc because there is twice as much friction in the groove as there is on a blank disc. In the groove the stylus is contacting the groove at 2 points. On a blank disc only one. With a line contact stylus this discrepancy is even worse. The correct way to set anti skating is with a test disc like the Hi Fi News disc which has excellent anti skating tracks. Too much anti skate and you get distortion in the Lt channel to little and you get distortion in the right channel. You adjust it until you get no distortion in either channel. If you can get this increase the tracking force a little. There are other must have tests on the record. Do it right. get the disc!
Hi Fi News test record. It is the only way to get it right under most conditions. Yes, the table will sound fine with the anti skate incorrectly set until it comes to a difficult passage. You set the anti skate set so that your cartridge will be able to track at its best and reduce record wear to a minimum.  Do not believe the settings on any tonearm. They only get you into the ballpark. Many arms do not even give you a scale use. They expect you to use a test record. It is not about sound. It is about tracking!