Hallo Uwe and All,
the Deutschlandfunk 153KHz is located in Donebach / Odenwald abt 50Km
SSE Frankfurt. Do you have another one in Braunschweig?
73 Walter DJ2LF
-----Ursprüngliche Nachricht-----
Von: "jannsen" <[email protected]>
An: <[email protected]>
Gesendet: Samstag, 6. Juli 2002 23:36
Betreff: Re: LF: Luxemburg effect?
Dick Rollema schrieb:
> To All from PA0SE
>
> Already several days I suffer from terrible broadcast QRM on the
LF-band.
> It sounds like Luxemburg effect centered on DC39.
> It is so bad that this morning I could hardly read M0BMU on 137.4kHz
where
> I tried to measure his field strength and reporting back with my 1944
> Hellschreiber. Jim always has a strong signal, about S8, and the test
> failed completely due to the BC-QRM.
> I experience it on both the Teletron LWF45 LF receiver and the W & G
SPM-12
> selective level meter I used for the measurement.
> The LWF45 has excellent front-end selectivity (5 tuned circuits tracking
> the local oscillator) so it can't be cross- or intermodulation by a
strong
> BC-signal.
>
> The only other cause I can think of is some "rusty bolt" effect that has
> recently developed.
>
> Do others have the same problem?
>
> 73, Dick, PA0SE
Hi Dick,
in the northern part of DL nothing. on 137.4kHz is DCF48 with an
unintended
radiation ZOA. if taking DCF39 in zero beat I can hear the BC
station Deutschlandfunk (153kHz, Braunschweig) loud and clear.
regards
Uwe/dj8wx
| 