[time-nuts] Do I have a defective thunderbolt?

Geraldo Lino de Campos geraldo at decampos.net
Fri Nov 19 00:09:03 UTC 2010


For some reason, the links didn´t include the suffix png. The correct linkas
are
"www.decampos.net\LH\LH1.png"
"www.decampos.net\LH\LH2.png"


On Wed, Nov 17, 2010 at 2:21 PM, Geraldo Lino de Campos <
geraldo at decampos.net> wrote:

> I have a thunderbolt acquired from TAPR. Almost every time the number of
> satellites change, there is an abrupt change in the DAC voltage – as high as
> 1 mv, sometimes. See www.decampos.net\LH\LH1<http://www.decampos.net/LH/LH1>.png
> - a graph with time constant 200 and Damping 4. Using much higher values
> improve the situation, as can be seen in www.decampos.net\LH\LH2.png<http://www.decampos.net/LH/LH2.png>, time constant 1000 and damping 100 (note the change in the DAC scale), but
> the jumps are still present.
>
> Is this normal, or I have a defective unit?
>
> The antenna is located in a window, with several buildings nearby, so the
> change in the number of satellites is frequent.
> --
> ------------------------------------
> geraldo at decampos.net
>



-- 
------------------------------------
Geraldo Lino de Campos
geraldo at decampos.net



More information about the Time-nuts_lists.febo.com mailing list