Quote:
3ll3d00d wrote:
 cross-post from avforums for completeness
it looks to me like that meter needs the RADIOSHACK-33-2055_4050.cal file. This would take off 6dB @ 20Hz, ~13.5dB @ 10Hz and 10dB @ 7Hz which I reckon would make it map reasonably closely to the galaxy curve.
if so then this goes back to the "how do you know which cal file to use?" issue |
Well done!
I was using the 33-2050 cal file for my new RS meter.
It really needed the old meter cal file. 33-2055-4050
Another senior moment!
I'll post a properly annotated graph later.
ECM8000/Galaxy 140 and New-Old RS SPL meters.
For the moment here's just the Galaxy 140 and RS meters with the correct cal. files and 1M sweep.
