[DSP-10] DSP-10 to 70 cm

[John Scherer]

it's not cheep but the only thing that came to mind was the Kuhne /  
DB6NT stuff, specifically the TR432H which is a complete system. You  
can see it here:www.ssbusa.com/mku70cm.html.  They also have  
transverter modules for 432 the TV28-432 the only thing is the IF is  
28.0.

-John


On Apr 15, 2006, at 5:17 PM, Courtney Duncan wrote:

> I would like to put my DSP-10 on 432 (435) MHz but a google search  
> on transverters doesn't find much these days in terms of off the  
> shelf converters or kits.  I suspect that since every rice box made  
> today (seems like) has 2 meters and 440 (and even 1.2) that there  
> isn't much market for such building blocks anymore.  For the  
> applications I have in mind, this equipment would need to be phase  
> locked to the same reference that runs my DSP-10, so that would  
> probably be a mod to an existing product, if there is such a thing.
>
> So I'm wondering how to proceed.  Possibilities that come to mind:
>
> - Something from the past -- ebay?  People's junk boxes?
> - A design from the past (or present!), like from QST or QEX, that  
> I could scrounge, etch, build, and modify.
> - Design my own?  I feel nearly ready for this, but would need some  
> -- advice on parts, layout, tricks, even packaging.
> - A contemporary product that my searches have missed (because I  
> don't know what to call it or it's not on the web or whatever).
>
> I have a second DSP-10 that I will be building sometime in the next  
> year or three and have even considered re-engineering it to 70 cm.   
> Like, the 126 MHz PLL becomes 412 somehow, and every relevant  
> filter and amplifier in the upstream chain has to be redesigned,  
> replaced or at least retuned.  This is over my head right now and  
> if it wasn't then I'd probably just know why it isn't a good idea.   
> Anyway, I don't want to do that because I want the two DSP-10s to  
> be roughly interchangeable.  (And I'd be back here asking for a 70  
> to 2 converter.)
>
> Any thoughts, advice, or offers from anyone here would be appreciated.
>
> Courtney, n5bf/6 DM04vf
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