69820Re: Ensemble RXTX Divider
- Nov 7, 2012Alan,
Thanks. You put my mind back on track !!
I would have tought so.
By probes, you mean similar to those of the scope, or RF probe, with a diode ?
--- In firstname.lastname@example.org, "Alan" <alan4alan@...> wrote:
> ----- Original Message -----
> Subject: [softrock40] Ensemble RXTX Divider
> > But, when inserting the USB cord, thus powering the SI570, the 74AC74 is dividing by four-ok, checked with frequency counter, but
> > on pin 3 & 11 , my test meter keeps bleeping continuously, showing a continuity sign and 1.6 volts !!
> > Is this flying RF ?
> > The problem is the test meter's ?
> > Bad testing procedure ?
> Really that's it. Bad testing procedure:)
> But it's not your fault, just that your meter is affected by the square wave signal on those pins.
> Most meters do give the results Robby shows but some do not.
> It is not really the correct way to test.
> Ideally an integrating probe is required but I suggest you just ignore it.
> It does confirm that a switching signal is present.
> 73 Alan G4ZFQ
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