OPERATION MANUAL - Scintrex

Setting Up Your InstrumentNote:The default rate of sampling is 10 times per second.Cycle Time (sec)The cycle time is used in the Base Station Mode anddenotes the time interval between each base stationreading. The value selected will vary with the user:some will prefer a cycle time of 30 seconds inwinter, 10 seconds in summer whereas other userswill prefer to cycle at 0.1s; (i.e. as fast as andsynchronous with a base station used in airbornemagnetometry).Field (nTesla)The Field Value is used as a filter value in thebandwidth calculation. Normally this would be theaverage magnetic field value in your area.Base Field (nTesla)The Base Field value is used as a datum that will besubtracted from the base station values. If used inconjunction with the field value, they should be setto the same value.BandWidth (Hz)The Bandwidth is related to the filter applied to thelarmor precession signal. Please refer to Appendix B“Theory”. A value of 2 Hz is what is recommendedfor most usages.Pitch (Optional)The Pitch is the intensity of the audio signal as heardin the headset connected to the HS Port (See Figure1-42 in “Ancillary Ports” on page 1-34. The higherthe pitch, the higher the magnetic field value.Sensor Sep (m)The Sensor Separation is the distance between yoursensors when your SM-5 NAVMAG is configured asa gradiometer.2-8SM-5 Manual - part # 872700 Revision 3