[hpsdr] penny/pennywhistle

[Geoff]

Hi Graham et al,
	I checked out Penny carefully, set it up properly (thanks Phil) and it's 
good. With reasonable power now available I checked the input SWR of 
Pennywhistle as per the manual. T1 on Pennywhistle passed that test. It thus 
appears that I somehow screwed up the wiring/winding of T2. Given that it's 
Sunday evening, I'm getting hungry and I don't have any #22 wire repairs will 
have to wait. Can anyone recommend a suitable metric equivalent to #22?
	Thanks for the help I've received thus far :-).

73 de Geoff vk2tfg.


On Sun, 6 Nov 2011 12:38:34 am Graham / KE9H wrote:
> Geoff:
>
> It sound like the RF amplifier transistors in PennyWhistle are
> biasing up fine.  Recheck the wiring of, and in particular the
> directions of the windings in T1 and T2.
>
> --- Graham
>
> On 11/5/2011 2:14 AM, Geoff wrote:
> > ***** High Performance Software Defined Radio Discussion List *****
> >
> > Hi guys,
> >
> > 	I am presently trying to get my completed Rx/Tx setup going. On Tx I
> > have a problem (or 2, dunno). My unmodified TAPR Penny is putting out the
> > expected power level. Pennywhistle has been setup as per the manual. I am
> > getting much lower power levels than i should. Most bands give me between
> > 400 and 600 mW, 10m gives me 1.5W. 6m gives less. Penny whistle draws a
> > maximum of about 2A on 10M. My aimless fiddling with gain and drive
> > levels in powersdr gave some small improvements but nothing significant.
> > Any attempt to run the PA calibration routines results in powersdr
> > throwing a wobbly over invalid calculated gain. I am transmitting via
> > Alex into a Bird 82C dummy load (overkill I know)
> > 	Any ideas you can give me to get my HPSDR system up and running properly
> > on Tx would be much appreciated by this frustrated numpty :-).
> >
> > 73 de Geoff vk2tfg.
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