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Date: Mon, 27 Feb 2012 00:46:30 +0000 (GMT)
From: ALAN MELIA <alan.melia@btinternet.com>
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: Broad signal (noise?) on 137.000KHz
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Hi Rob, it has hardly been active in the last 5 years mainly daylight even =
then.....humourously refered to as spider roasting. Occasionaly during the =
snow and ice to clear the accumulations off the umbrella wires. We were exp=
ecting more activity when the UK sold some surplus diesel subs to Canada...=
..must have been around 2005 ..... unfortunately one had a fire off the nor=
th coast of Ireland during the passage home, and I think their commissionin=
g was deferred. =0A=0AWe never heard CFH regularly again after that. Origin=
ally 1999/2000 it was transmitting rtty 82Hz shift FSK 24/7, but installed =
a new TX for multi-channel msk around 2003/4 but hardly used it. The new mo=
d is a lot wider than the rtty but there seems to be at least 6 separate ch=
annels rather than the one on their rtty. LF txs use a lot of electricity !=
!=0A=0AI used to have some pictures of the TX and the antenna and tuning hu=
t, thanks to my "mole".....one of the techs on site. They are probably buri=
ed =0Aon an old HD.=0A=0AAlan=0AG3NYK=0A=0A=0A--- On Sun, 26/2/12, Rob, M0D=
TS <rob@m0dts.co.uk> wrote:=0A=0A> From: Rob, M0DTS <rob@m0dts.co.uk>=0A> S=
ubject: Re: LF: Broad signal (noise?) on 137.000KHz=0A> To: rsgb_lf_group@b=
lacksheep.org=0A> Date: Sunday, 26 February, 2012, 23:13=0A> Alan,=0A> =0A>=
 Thanks for the information..=A0 I've only been back=0A> listening 136 for =
a =0A> month or so and i had not noticed it until last night, last=0A> time=
 i was =0A> on in 2007 i don't think i heard it either so must be varied=0A=
> in it's =0A> operation.=0A> The 40kW is doing well anyway, s-meter stuck =
at s7 here...=0A> gmsk sounds=A0 =0A> bit like noise really ;-)=0A> =0A> Ro=
b=0A> M0DTS=0A> =0A> On 26/02/2012 22:29, ALAN MELIA wrote:=0A> > Hi Rob th=
at is not noise that is one of the oldest=0A> residents of the band=0A> > :=
-)) It is the Canadian Naval station at Newport Corner=0A> nr Halifax Nova =
Scotia.It is nor unusual for it tobe 30 to=0A> 40dB over the noise level. I=
tis a good indication of=0A> propagation conditions as was the stimulus for=
 the first TA=0A> attempts on 137kHz.=0A> > The station is transmitting at =
about 40kW ERP from a=0A> new but barely used Harris TX the modulation is m=
ost likely=0A> GMSK and it is capable of multichannel independent sideband=
=0A> operaton. It generally is used for submarine comms., but has=0A> been =
very quiet in recent years.=0A> >=0A> > Alan G3NYK=0A> >=0A> >=0A> > --- On=
 Sun, 26/2/12, Rob, M0DTS<rob@m0dts.co.uk>=A0=0A> wrote:=0A> >=0A> >> From:=
 Rob, M0DTS<rob@m0dts.co.uk>=0A> >> Subject: LF: Broad signal (noise?) on 1=
37.000KHz=0A> >> To: rsgb_lf_group@blacksheep.org=0A> >> Date: Sunday, 26 F=
ebruary, 2012, 22:09=0A> >> Hi All,=0A> >> I'm getting a broad signal at 13=
7KHz on evenings=0A> with=0A> >> gradual increase in strength as the evenin=
g goes on=0A> plus=0A> >> some qsb.=0A> >> It seems to be very stable cente=
red on 137.000 and=0A> is 300Hz=0A> >> wide, see the screen grab below.=0A>=
 >>=0A> >> The same signal is received about 17km away too by=0A> another=
=0A> >> station at similar strength so wondered if anyone=0A> else hears=0A=
> >> it?=0A> >>=0A> >> http://www.m0dts.co.uk/files/capt1202262156.jpg=0A> =
>>=0A> >>=0A> >> Rob=0A> >> M0DTS=0A> >>=0A> >>=0A> >=0A> =0A> =0A>