How to Set Anti-Skate

A pivoted tonearm does not track straight. It swings on a bearing at one end, and that geometry means the stylus is pulled constantly inward, toward the label, by a sideways force called skating. Left uncorrected, skating presses the stylus harder against the inner groove wall than the outer, and anti-skate is the small outward counter-force that cancels it. It is the setting owners most often ignore or fudge, and while it does not have to be perfect, getting it roughly right matters for even wear and balanced sound. Here is what it does and how to dial it in.

What skating does when it's wrong

Skating is a real, constant force, and letting it run unchecked has specific consequences. With too little anti-skate, the stylus leans on the inner wall, so that channel wears faster and distorts first — mistracking on loud passages tends to show up in the right channel, which the inner wall feeds. With too much anti-skate, the problem simply flips to the outer wall. Either way you get uneven groove wear and a channel imbalance that a correctly set arm avoids. In extreme cases a badly unbalanced arm will drift across a blank record surface on its own. The goal is not a magic number but a setting close enough that neither wall takes the abuse.

How much anti-skate to use

The practical starting point is simple: set anti-skate roughly equal to your tracking force. If your cartridge tracks at, say, 1.8 grams, set the anti-skate dial to about 1.8 as a first pass. It is an approximation, not a law — stylus profile, arm design, and even the record affect the true figure — but it lands close enough for the vast majority of setups. Forgiving moving-magnet cartridges like the Ortofon 2M Red and the Audio-Technica AT-VM95E sit comfortably in the range where dial-equals-force is a reliable place to begin, and you can nudge from there if you hear an imbalance.

Setting it: dial, weight, or spring

Anti-skate is applied by one of three mechanisms, and the method is the same regardless. Many decks use a numbered dial you simply turn to match your tracking force. Others use a hanging weight on a thread looped over a small post, where you hang the weight in a numbered notch. A few use a calibrated spring. Whichever yours has, the order of operations is fixed: set tracking force first — our how to set tracking force guide covers that — then set anti-skate to match, because anti-skate keys off the force you have already dialed in. Setting them out of order means redoing the work. A practical note: the anti-skate scale is calibrated to your deck's own arm, so match the number to your tracking-force figure and do not expect two different turntables to read identically. A few budget and vintage arms omit anti-skate altogether; on those you simply accept a small, unavoidable inner-wall bias, which is a fair trade for the simplicity and not worth losing sleep over.

Checking it without fooling yourself

The famous test is to lower the stylus onto a blank, unmodulated record surface and watch which way the arm drifts, adjusting until it holds roughly still. It is a useful sanity check, but treat it with caution: a groove-less surface has no walls gripping the stylus, so it does not reproduce real playing conditions and will steer you toward too little anti-skate if you trust it completely. Use it only as a rough guide. A better check is by ear on music — listen for balanced channels and clean tracking on demanding inner-groove passages, where mistracking shows first. Since anti-skate is set against your tracking force, get that number right with a force gauge before you judge the balance.

When to revisit it

Anti-skate is not set-and-forget forever, but it is close. Revisit it whenever you change the cartridge or stylus profile, since a different tip and compliance shift the ideal figure, and any time you have redone tracking force. It is also worth a check after you align the cartridge, because alignment, force, and anti-skate are the three interacting legs of a good setup — our how to align a cartridge guide is the natural next step. Once set for a given cartridge, it holds until you change something upstream.

Wrapping up

Anti-skate rewards getting close far more than getting it perfect, and the recipe is short. Set tracking force first, dial anti-skate to roughly match it, sanity-check the arm, then trust your ears on real music. Revisit it when you swap cartridges, and pair it with correct force and alignment — together those three settings turn a deck that merely plays into one that tracks cleanly and treats your records gently.