This Magnetic Reference Laboratory calibration tape is used for standardizing azimuth, equalization and determining the "0" level or sensitivity of your deck. This tape is for the NAB equalization standard at 250 nWb/m level which is that of the +3 dBm operating level tapes (see section header for a list.) Recorded at 7.5 IPS.
Six minutes long.
All MRL tapes are made to order and usually ship in 2-3 business days after you place the order. They ship directly to you from MRL Lab in California. Please allow for shipping time.