Re: LF: RE: BIA NDB

[Gary - G4WGT <g4wgt@tiscali.co.uk>]

Hi Dave & all who left comments & observations.

I am also still seeing the 473.800kHz carrier but not too strong & no signs of the BIA carrier.
This morning I could not even detect the 473.8 carrier but has since shown up very weak & slow QSB to below noise.
Since 1430utc it has started to show continuously gaining strength as time progresses.

What puzzled me was the sudden apparent QSY from the BIA carrier frequency as seen on the capture.

http://1drv.ms/1dFQW7L

And later a carrier came slowly into view on 474.000kHz.

I was also wondering if it could be an effect of the Auroral event yesterday ?

73, de Gary - G4WGT
                            
MF-LF-VLF Grabber : http://myweb.tiscali.co.uk/wgtaylor/grabber2.html
Web : http://myweb.tiscali.co.uk/wgtaylor/index.html

.

On 28/02/2014 15:17, Dave G3WCB. wrote:

Hi, Gary, Tobias, All,

The carrier is still weakly audible here also (15-00 utc). It's about 12dB
above the noise, using my SPM-30 on the 24Hz bandwidth setting.

The signal is very steady, which probably means I'm seeing just the
groundwave component.
I think it gets a lot stronger after dusk. At the moment, it's about -103
dBm.

73, Dave G3WCB IO91RM

-----Original Message-----
From: owner-rsgb_lf_group@blacksheep.org
[mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Tobias DG3LV
Sent: 28 February 2014 11:18
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: RE: BIA NDB


Hi Gary, Stefan !

The carrier at 473.806 is 30dB above noise here at (local) noon. Very
steady signal. BIA carrier 474.0 is barely visible, 5dB or less above
noise. Keying of BIA is not visible.

(WSPR : G0HNW at -19dB, no QSB)

73 de dg3lv Tobias

Am 28.02.2014 00:46, schrieb schaefer:

Hi Gary,

Same on my grabber. It is 10 dB stronger than BIA here, i.e. it is not
BIA but another signal. BIA and its 2 sidebands is still on 474 kHz.

73, Stefan/DK7FC


Am 27.02.2014 23:15, schrieb Dave G3WCB.:

Hi Gary.
I'm hearing the new carrier on 473.8 also. It doesn't seem to be
modulated. It's quite strong, but has some slow QSB, which would
indicate that is some distance away from my location.
73, Dave G3WCB IO91RM

    -----Original Message-----
    *From:* owner-rsgb_lf_group@blacksheep.org
    [mailto:owner-rsgb_lf_group@blacksheep.org]*On Behalf Of *Gary -

G4WGT

    *Sent:* 27 February 2014 21:48
    *To:* rsgb_lf_group@blacksheep.org; rsgb_lf_group@yahoogroups.co.uk
    *Subject:* LF: BIA NDB

    Hi All,

    NDB "BIA" seems to be much stronger than usual, also it seems to
    have QSY'd down a little to 473.800kHz.
    But in saying that it looks like it may be another carrier as I am
    seeing the BIA carrier also strong on its usual frequency

474.000kHz.

    See this capture :-

    http://1drv.ms/1dFQW7L

    You should be able to move backwards & forwards within the series
    of captures.
    Comments please via LF.

    --
    *73, de Gary - G4WGT

    MF-LF-VLF Grabber :http://myweb.tiscali.co.uk/wgtaylor/grabber2.html
    Web :http://myweb.tiscali.co.uk/wgtaylor/index.html*

    .