Re: LF: DCF39 in JA

[Markus Vester <markusvester@aol.com>]

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 <ja10xx@yahoo.co.jp>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
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 up
about two hours before sunrise.
http://icas.to/argo/capt.jpg
This is a temporal grabber and you need to manually refresh
every 5min. 

Sunrise here is around 20:00UTC.

73,


Yas - JA8SCD/1
Tokyo


--- 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