[hpsdr] Pennywhistle RF Transistors

Graham / KE9H KE9H at austin.rr.com
Sun Feb 1 17:14:34 PST 2009


Lyle:

Thanks for the input.  I was going to put the design out for final group
comment this week, so your input is timely.  Did you do anything
to dump excess gain at lower frequencies, or was it not a problem?

Thanks,
--- Graham

==

Lyle Johnson wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I note that Pennywhistle is using RD16HFF1 transistors.  While many, 
> if not most, instances of these parts work OK at 6 meters, some do 
> not. Don't ask how I know!
>
> I suggest considering RD15VHF1 transistors instead.  These will 
> definitely have consistent gain at 6 meters.
>
> 73,
>
> Lyle KK7P
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at hpsdr.org
> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org
> HPSDR web page: http://hpsdr.org
> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/
>
>



 1233537274.0


More information about the Hpsdr mailing list