11.02.2011 10:40 AM
Test the Test Equipment

Before making measurements be sure to test your test equipment. Otherwise, you may not obtain the measurements you need or expect.

If doing acoustical measurements, calibrate your measurement microphone, with a calibrator or by using manufacturer-supplied data. If you’re using any battery-powered devices install fresh batteries, or if using rechargeables, make sure they are fully charged. Check all interconnection cables and adapters. Are they wired correctly and well-terminated?

Make sure you’re familiar with your test gear. Set up everything ahead of time and do some test measurements before you go out on a job. Test your signal generator by connecting it to your analyzer. Run through the different signals to make sure both generator and analyzer are working correctly.

Make sure analyzer range settings, if available, are appropriate for your measurements. If you have auto-ranging, test with different signal levels to make sure it’s operating properly. Many measurements can use filters, like sound pressure level or total harmonic distortion plus noise. Check the settings of these filters. Are the correct ones selected? Are the filters out when they aren’t needed?

Check the settings of other buttons, switches and dials. Be especially aware of software settings. Many appear in submenus that aren’t always in view. Make a checklist for your equipment checkout, and follow it. Keep it updated after each job. Make a list of gear and cable that you’ll definitely need and another list of what else you think you should take on a measurement job. Think spares, extra power cables, power strips, audio cable, etc.

And of course, think about what you’re trying to accomplish with your measurements, so that when you finally perform them you can check if the measurements make sense. With some jobs, you may only get one chance to get your measurements. So as with any job, preparation and planning pay off.



Comments
Post New Comment
If you are already a member, or would like to receive email alerts as new comments are
made, please login or register.

Enter the code shown above:

(Note: If you cannot read the numbers in the above
image, reload the page to generate a new one.)

No Comments Found




Thursday 10:05 AM
NAB Requests Expedited Review of Spectrum Auction Lawsuit
“Broadcasters assigned to new channels following the auction could be forced to accept reductions in their coverage area and population served, with no practical remedy.” ~NAB

Wall Street Communications /   Friday 06:54 PM
ChyronHego Products at Content and Communications World (CCW):
Sue Sillitoe, White Noise PR /   Friday 05:52 AM
Visual Unity Shows vuMedia™ at NAT Expo 2014 and Inter BEE 2014

 
Featured Articles
Discover TV Technology