[hpsdr] Hermes/Anan 10 Drift?

Tokio Endo tokio.endo2 at i.softbank.jp
Thu Mar 14 16:25:50 PDT 2013


Hi All,

I posted R141 change needed to 50 ohm several weeks ago on this reflector. After the change the external clock seems to work properly. But I'm still concerned about the wave shape of the two transisor circuit output. It is a triangular wave while the internal clock has nearly a rectangular shape. The circuit of Hermes, which should produce a rectanguler wave from an external clock sine wave is identical to Excaliber.
Any comments appreciated.

Tokio Endo
JA1CCA

2013/03/15 8:00、Brian Lloyd <brian at lloyd.com> のメッセージ:

> ***** High Performance Software Defined Radio Discussion List *****
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> 
> On Thu, Mar 14, 2013 at 3:53 PM, Lyle Johnson <kk7p4dsp at gmail.com> wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>> 
>> 
>> Or just solder down another 100 ohm SMT resistor on top of the present 100 ohm, yielding 50 ohms and no removals.
> 
> I was going to add that but it is much prettier with just one resistor on there. :-)
> 
> -- 
> Brian Lloyd, WB6RQN/J79BPL
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