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 250 nW/m level which is that of the +3 dBm operating level tapes (see section header for a list.) Recorded at 3-3/4 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.