Recommended Pitch
Some manufacturers recommend particular pitch values
Selected pitches have improved interpolation properties.
- GE use pitchd 3 and 6 only (HQ and HS mode)
- Toshiba and Marconi use mainly pitchd 2.5, 3, 3.5, 4.5, 5, 5.5, 6, 7 (not 4)
- Siemens allow any pitch