[hpsdr] PennyWhistle Connection Diagram

[n3evl]

John,

I think you are correct. Below is my e-mail from 11/21/2009.  I was 
under the impression that the documentation had been changed to correct 
the inconsistency back then but apparently not.

Pete, N3EVL

"...***** High Performance Software Defined Radio Discussion List *****

The connection diagram on page 5 of the Pennywhistle Assembly and 
Operating Instructions document shows the 3-pin header numbers with 1 
labeled as Bias Control and 2 labeled as ground.
This appears to be at odds with the schematic which shows 1 ground and 2 
Bias Control.

Since tests with my ohm meter agree with the schematic, it appears that 
the connection diagram is incorrect.

The last thing I have to do is wire up the control cable to this header 
and the DB25 - want to make sure I have it correct.

Pete, N3EVL
__________________"





On 3/6/2012 4:24 PM, John Westmoreland wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
> (resend without the diagram attached)
>
> HPSDR,
>
> I did a search of e-mail that I have - not exhaustive by any means - 
> but has anyone noticed that the Bias Control and Ground Pin numbers 
> are reversed in the below diagram?  (please see PennyWhistle 
> connection diagram in the pdf on the web-site)
>
> I wondered why my amp was starting to heat up when it wasn't doing 
> anything.
>
> 73's,
> John
> AJ6BC
>
>
>
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