Re: BitX40 v1.27.7 SPOT mode
Allard PE1NWL
The CAL VALUE x 100 represents the offset (in Hz) that we need to apply to
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the nominal VCOA frequency (875 MHz) in order to get the correct output frequency. 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"

