Alan,
You can legitimately get two of any chip available for sampling free. I have confirmed this with G3ZDM who was one of the architects of the scheme. Amateurs are specifically "within scope" and part of the sampling schemes intended audience. Chips for the UK are shipped from Ireland or the Netherlands. The only person I know of who had problems used a "disposable" e-mail address, (I think Yahoo and Hotmail are excluded, I would hope that QSL.NET would work OK.) Dave -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Alan Sent: 09 February 2008 12:15 To: [email protected] Subject: Re: [soft_radio] Oscillator, why divide/4 ----- Original Message ----- From: "Dave Wade" >Having read these I was wondering why these folks use the "divide/4" >approach when there are now DDS chips available very cheaply, Now, but any design that has been properly tested is bound to be out of date when published. How many of these chips can an amateur get free? I've not tried but I've heard AD seem a little reluctant to send overseas. Anyway this is the Softrock group, Tony's simple project uses /4 and /8 effectively. We can then add bells and whistles as we see fit. I'm not sure it needs DDS the nice and simple Si570 will give suitable steps. Now, that is fairly up to date, although something better may well have been released! 73 Alan G4ZFQ
