Re: BitX40 v1.27.7 SPOT mode
The CAL VALUE x 100 represents the offset (in Hz) that we need to apply totoggle quoted messageShow quoted text
the nominal VCOA frequency (875 MHz) in order to get the correct output
So the ppm (parts per million) value can be calculated as follows:
ppm = CAL VALUE x 100 / 875,000,000 x 1,000,000
For example, the default CAL value is 1575
so the corresponding default ppm value is
1575 x 100 / 875,000,000 x 1000,000 = 180 ppm
Hope this helps.
73 Allard PE1NWL
On Sun, February 4, 2018 18:51, Vic WA4THR via Groups.Io wrote:
OK, great! One other question...what is the relationship between the "PPM"