On Aug 7, 5:01 pm, David Forbes <[email protected]> wrote: > On 8/7/11 1:41 AM, jb-electronics wrote: > > > David, > > >> The short answer: Don't use PWM next to a radio receiver. > >> You are introducing an interfering radio signal. > > > thanks for your reply, however, it is not quite what I was hoping for. > > Since I have discovered the PWM function on my controller I don't want > > to miss it anymore. > > I work on radio telescopes, and we use linear power supplies wherever > possible, to reduce RF interference. > > you might be able to get the clock to receive radio signal while using > PWM on the tubes, but you'll spend years getting it to work. > > It's just not worth the trouble.
In the past, I've used systems where I've synched the time/date when the PWM is not in use, e.g. at night when the display is off so no HV required, and used a TXCO during the day. Its a good compromise. Nick -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
