sdr monitor vs DDUtil

  • 1
  • Question
  • Updated 3 weeks ago
I just installed the little sdr monitor utility and I noticed a discrepancy between the voltage it shows and that shown by DDUtil . SDRMonitor shows 13.89 while DDUtil shows 14.2.
My question is which is the more accurate?
I like the tiny footprint of sdr monitor but accuracy is important.
Thanks
 
Photo of Gene - K3GC

Gene - K3GC

  • 166 Posts
  • 28 Reply Likes

Posted 3 weeks ago

  • 1
Photo of Bill -VA3WTB

Bill -VA3WTB

  • 2180 Posts
  • 512 Reply Likes
What reads the closest to a volt meter connected at the radio terminal?
Photo of Roy - W5TKZ

Roy - W5TKZ

  • 116 Posts
  • 11 Reply Likes
Which brings up the question -- How accurate is the voltmeter used to compare the two readings?
Photo of Gene - K3GC

Gene - K3GC

  • 166 Posts
  • 28 Reply Likes
Too simple for me to have thought of. 13.98 at the PSU.
Thanks
Photo of Tim - W4TME

Tim - W4TME, Customer Experience Manager

  • 8954 Posts
  • 3382 Reply Likes
There are two voltage tap points on the 13.8 VDC rail.  It could be one is reading the tap before the fuse (14.2) and the other is reading it after (13.8).
Photo of Bill -VA3WTB

Bill -VA3WTB

  • 2178 Posts
  • 512 Reply Likes
Yes, I think for instance, the Flex meter can read from both taps, and they do read different.
(Edited)
Photo of AH0U

AH0U

  • 238 Posts
  • 22 Reply Likes
What utility are you using to read the voltage??