Hi Gary, LF!
OK, I'm understood.
There is no any ideas what is a signal?

Roman

* Gary - G4WGT <[email protected]> [Fri, 15 Jan 2010 10:24:36 +0000]:

Roman, LF,

I realise I have resolved the issue of the "signal" but the spectrum
line
that appeared at the bottom of the display looked like it was a

repeated

1
minute segment. It was in fact a continuous signal which was broken

into

1
minute lengths by the time label at the bottom which is in a black box
for
clearer display.

73, Gary - G4WGT


2010/1/14 Roman RW3ADB <[email protected]>

> Hi Gary, LF!
> TNX to all for the details and participation in identification.
> I thought about an NDB, but signal was so very long 1 minute.
> Is't real to be an NDB ID.
> Some time he was like a carrier on the screen.
>
> * Gary - G4WGT <[email protected]> [Thu, 14 Jan 2010 20:10:59
+0000]:
>
>> Hi All at LF,
>>
>> Update on previous mails regarding 498.800 kHz.
>>
>> The signal is not really there, I tried to Rx it on my "real"

radios

>> using
>> my 500 kHz vertical & there was nothing there. I was able to Rx a
>>
> couple
>
> Do you tried to rx today or yesterday?
> That signal is absent today on the grabber.
>
>  of
>> NDB's a little lower at good strength but nothing on 498.800 kHz.

Yet

>>
> it
>
>> was
>> there good & strong on the SoftRock SDR I use for the grabber.
>>
>> My next move was to connect to another sound card & not only was

the

>> signal
>> not there on 498.800 kHz a great deal of hash & other interference
had
>> disappeared as well.
>>
>> You will notice a much better display now on the grabber, the sound
>>
> card
>
>> is
>> an external Creative Sound Blaster Live 24 bit.
>>
>> 73, Gary - G4WGT.
>>
>>
>>
>> 2010/1/14 Gary - G4WGT <[email protected]>
>>
>> > Hi Tracey,
>> >
>> > Thanks, I have looked at the list & the nearest is the following
>>
> UNID
>
>> :-
>> >
>> >
>>
>>  498.7<
>

http://www.classaxe.com/dx/ndb/reu/?mode=signal_list&filter_khz_1=498.7&filter_khz_2=498.7&limit=-1

> >
>
>> > *NT*   0   UNID
>>
>>

XUU<http://www.classaxe.com/dx/ndb/reu/?mode=signal_list&filter_itu=XUU>

>
>> >    UNID ENG IRL *2* 2005-08-28
>> > Not sufficient info at the moment, I will see if I can copy an ID
>> when/if
>> > it gets strong enough.
>> >
>> > 73, Gary - G4WGT.
>> >
>> >
>> >
>> > 2010/1/14 Tracey Gardner <[email protected]>
>> >
>> >  Hello Gary
>> >>
>> >> Have you checked the REU list for your signal?
>> >>
>> >> http://www.classaxe.com/dx/ndb/reu/
>> >>
>> >> If you do a search between 497kHz and 500kHz you'll find that
there
>> are a
>> >> good number of unid NDBs in that area.
>> >>
>> >> Tracey
>> >>
>> >>
>> >> ----- Original Message -----
>> >> *From:* Gary - G4WGT <[email protected]>
>> >> *To:* [email protected]
>> >> *Sent:* Thursday, January 14, 2010 11:53 AM
>> >> *Subject:* Re: LF:498.8
>> >>
>> >> Hi Roman, LF,
>> >>
>> >> I have also noticed the signal on 498.800 kHz.
>> >>
>> >> I have looked back at 3 days grabber saves & the signal fades in
at
>> about
>> >> 1530utc & fades out at about 0700utc the following morning. At
>>
> times
>
>> there
>> >> appears to an accompanying parallel signal about 1 kHz higher
which
>> looks
>> >> like an NDB ID (see attachment), but nothing on my lists for an
NDB
>> on that
>> >> frequency.
>> >>
>> >> I will set up another SpecLab to monitor that frequency & a few
kHz
>> either
>> >> side to watch for an ID type signal on the LF side as well as

the

>>
> HF
>
>> side of
>> >> the carrier. I will report my findings to LF for anyne who may

be

>> >> interested.
>> >>
>> >> 73,  Gary - G4WGT.
>> >>
>> >>
>> >> 2010/1/14 Roman RW3ADB <[email protected]>
>> >>
>> >>>
>> >>> Hi LF!
>> >>> What is a signal are visible onto G4WGT grabber around 498.8

kHz?

>> >>> http://rw3adb.narod.ru/2010/20100113_498.8/capt500-4.jpg
>> >>> http://rw3adb.narod.ru/2010/20100113_498.8/capt500-4.1.jpg
>> >>>
>> >>> --
>> >>> Roman RW3ADB.
>> >>>
>> >>>
>> >>
>> >
>>
>
>
>
>
> --
> Roman RW3ADB.
>
>

--
Roman RW3ADB.