[hpsdr] PennyLane power out

[Chris Smith]

Jim

If the transformer you’re referring to is T2 on the original Penelope boards, then it will affect all bands but more so the higher frequency bands. The stated output power reduction at 6M is 3dB. The replacement board, Pennylane, didn’t suffer from this wrongly oriented transformer.

For info on T2 reversal see:      http://openhpsdr.org/wiki/index.php?title=Penelope_-_Trouble_Shooting

Cheers & 73

Chris G4NUX


> On 19 Apr 2019, at 21:07, Jim Sanford <wb4gcs at wb4gcs.org> wrote:
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> All:
> 
> I'm aware of the issue with a transformer that needs to be rotated lowering 6m output power.  I have not done the rotation yet.
> 
> Question:  Does it also affect 10 meters?  I ask because I see lower power output on 10 than the lower bands. (I have done the compensation for gain in setup; RF into Penny is set as high as I can.) I was expecting (perhaps wrongly!) 10 to not be affected by the transformer issue.
> 
> Thanks & 73,
> 
> Jim
> 
> wb4gcs at amsat.org
> 
> 
> 
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