Hi Markus,
I am using two identical DC receivers sharing one LO.
One feeds L and the other R to SL respectively. With this
settings, I can compare two different antennas at the same
time.
I am using two mini-whips (of PA0RDT design) with the following
setup.
http://icas.to/argo/dcf39/side-view.jpg
http://icas.to/argo/dcf39/top-view.jpg
The lower mini-whip (No.1) seems to be 5db or so better than the higher
mini-whip (No.2).
The path to the DCF39 grabber has been changed to:
http://icas.to/argo/dcf39.htm
The comparison grabber is still running, but centered on 137,777:
http://icas.to/argo/capt.jpg
73,
Yas - JA8SCD/1
Tokyo
--- Markus Vester wrote:
>
>
> Hi Yas,
>
>
> thanks for this grabber! In your split screen spectrogram, what is the
> difference between the upper and lower half?
>
>
> Based on the visible Loran-C lines, your frequency calibration seems to be
> very accurate:
> GRI 9930: 137779.45619 Hz
> GRI 8930: 137777.15566 Hz
> GRI 9930: 137774.42095 Hz
>
>
> Best 73,
> Markus (DF6NM)
>
>
> -----Ursprüngliche Mitteilung-----
> Von: Knight Ao <[email protected]>
> An: rsgb_lf_group <[email protected]>
> Verschickt: Di, 16 Aug 2011 8:51 pm
> Betreff: Re:LF: DCF39 in JA
>
>
> Hello Mike and all,Thanks Mike for the info. Tonight, condx seems pretty
> good. DCF39 started to show upabout two hours before
> sunrise.http://icas.to/argo/capt.jpgThis is a temporal grabber and you need
> to manually refreshevery 5min. Sunrise here is around 20:00UTC.73,Yas -
> JA8SCD/1Tokyo--- Mike McAlevey wrote:> > > > Hello Yas.> Here is a
> capture of DCF39 received in ZL. The "telegrams" are often audible just
> before our sunrise.> Mike ZL4OL
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