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Message-ID: <970432.10413.qm@web28104.mail.ukl.yahoo.com>
Date: Thu, 25 Feb 2010 09:41:40 -0800 (PST)
From: M0FMT <m0fmt@yahoo.co.uk>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <9afca2641002250919y7bdb25ebq8b913bb7d210e488@mail.gmail.com>
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Subject: Re: LF: Fwd: Special Permits for Amateur Radio Operation below 9kHz?
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Well done Roger
=C2=A0
What happens with hard of hearing audio induction loops, they are every wh=
ere nowadays?
=C2=A0
Does this mean if we put a an OFW305 they will issue us with an NOV?
=C2=A0
I am typing mine now!
=C2=A0
Thanks to G4JNT previously=C2=A0and Good Work Roger!!

73 es GL petefmt

--- On Thu, 25/2/10, Roger Lapthorn <rogerlapthorn@gmail.com> wrote:


From: Roger Lapthorn <rogerlapthorn@gmail.com>
Subject: LF: Fwd: Special Permits for Amateur Radio Operation below 9kHz?
To: rsgb_lf_group@blacksheep.org
Date: Thursday, 25 February, 2010, 17:19


People may be interested in the reply from Rod Wilkinson at OFCOM received=
 today. I asked him what OFCOM's view would be.=20


---------- Forwarded message ----------
From: Rod Wilkinson <Rod.Wilkinson@ofcom.org.uk>
Date: 25 February 2010 15:20
Subject: RE: Special Permits for Amateur Radio Operation below 9kHz?
To: Roger Lapthorn <rogerlapthorn@gmail.com>





Hello Roger,
Well, quicker than I thought we=E2=80=99d be I have some info for you rega=
rding the possibility of operating on 9kHz.
Apparently Ofcoms=E2=80=99 Spectrum Management Team were approached back=
 in 2006 by Colin Thomas G3PSM in his role as RSGB Spectrum Director. We=
 understood at that time there was some interest in 9kHz, especially from=
 Andy Talbot, G4JNT. However nothing came of it on that occasion.
That has though allowed a head start this time and my colleagues in the Sp=
ectrum Team see no reason why Amateur operation/experimentation can not ta=
ke place on 9kHz. They state that ITU Radio Regs indicate that there is no=
 allocation for frequencies below 9 kHz. However in the UK, a licence woul=
d be required as there is no lower frequency limit for wireless telegraphy=
 under the WT Act 2006. This would be in the form of a Notice of Variation=
 for an existing licensee and will be awarded much on the same lines as fo=
r operating on 501-504kHz. Also any operation will be subject to a non int=
erference basis to other active facilities and systems using that part of=
 the spectrum. We will need to revisit the likes of the Met Office who wer=
e approached during the original enquires to confirm that they remain cont=
ent with the agreed arrangements.=C2=A0 All this, will of course, need to=
 be done prior to the NoV being granted.
So it does seem a possibility and if you and any others wish to proceed pl=
ease complete an application from for a Special Research Permit available=
 at:
www.ofcom.org.uk/radiocomms/ifi/licensing/classes/amateur/applications/ofw=
306.pdf
Please provide as much detail as possible and send it to me and I will lia=
ise with appropriate colleagues.
I hope that helps.
Vy 73
Rod

Rod Wilkinson
OLC Senior Associate, Amateur Radio
020 7783 4488 (direct line)
Rod.wilkinson@ofcom.org.uk
=C2=A0
Ofcom
Riverside House
2a Southwark Bridge Road
London SE1 9HA
020 7981 3000
www.ofcom.org.uk
=C2=A0
Have you changed your address recently?=20
Update your details on the Ofcom Amateur and Ships Licensing Service=20
=C2=A0
http://www.ofcom.org.uk/licensing/olc/=20
=C2=A0

=C2=A0
=C2=A0
=C2=A0
=C2=A0

From: Roger Lapthorn [mailto:rogerlapthorn@gmail.com]=20
Sent: 23 February 2010 10:33 AM
To: Rod Wilkinson
Subject: Re: Special Permits for Amateur Radio Operation below 9kHz?



=C2=A0
Many thanks Rod.=20

I fully understand, and would expect, some delay in any response from OFCO=
M regarding operation below 9kHz.

73s
Roger G3XBM

On 23 February 2010 08:23, Rod Wilkinson <Rod.Wilkinson@ofcom.org.uk> wrot=
e:


Hello Roger,
=C2=A0
Many thanks for your very interesting mail.
=C2=A0
To ensure that I obtain the correct answer regarding operating below 9kHz=
 I will need to take advice from Ofcoms=E2=80=99 spectrum management team=
 and possibly the lawyers too.=20
=C2=A0
So please accept this as a holding reply and I will get back to you as soo=
n as possible. =C2=A0But be aware please that it may run into weeks rather=
 than days.
=C2=A0
Vy 73=20
=C2=A0
Rod
PS =C2=A0sincere congratulations on exceed the 1000km mark on 500kHz!
=C2=A0
Rod Wilkinson
OLC Senior Associate, Amateur Radio
020 7783 4488 (direct line)
Rod.wilkinson@ofcom.org.uk
=C2=A0
Ofcom
Riverside House
2a Southwark Bridge Road
London SE1 9HA
020 7981 3000
www.ofcom.org.uk
=C2=A0
Have you changed your address recently?=20
Update your details on the Ofcom Amateur and Ships Licensing Service=20
=C2=A0
http://www.ofcom.org.uk/licensing/olc/=20
=C2=A0

=C2=A0
=C2=A0
=C2=A0
=C2=A0

From: Roger Lapthorn [mailto:rogerlapthorn@gmail.com]=20
Sent: 22 February 2010 10:43 PM
To: Rod Wilkinson
Subject: Special Permits for Amateur Radio Operation below 9kHz?


=C2=A0
Dear Rod,

On the RSGB's LF reflector, there has been some discussion in the last few=
 days about experimentation at frequencies below 9kHz. Many years ago (aro=
und 1970) I held a couple of Test and Development licences (G9BGU and G9BI=
B) for such experiments and I wrote up the results in Radio Communications=
 magazine in 1975. It's a fascinating part of the spectrum to explore.

In some countries the approval authorities have simply said that below 9kH=
z is not allocated by the ITU and therefore they have no issues with amate=
urs operating experimentally in this part of the spectrum. As far as I am=
 aware, the only use for frequencies below 9kHz is for sferic monitoring,=
 VLF emissions research (whistler reception, etc), slow data rate signalli=
ng to submerged submarines (although I believe this has now been replaced=
 by other methods) and some slow data rate FSK modulation of the mains pow=
er grid system. I cannot imagine amateur operation being a credible interf=
erence threat to any of these.

At such frequencies, any "antenna" erected by a radio amateur would, in a=
 traditional sense, would be incredibly inefficient and far field radiatio=
n immeasurably low. Therefore communication would, for all intents and pur=
poses, only be possible by conduction currents through earth or sea (so ca=
lled "earth mode") or induction and not by radiation in a true radio sense=
. Attenuation rates are therefore much higher and potential range very lim=
ited. I think some in the amateur radio community are interested in experi=
menting with very weak signal modes to "push the envelope" on range at the=
se basement frequencies. There is no doubt that modes like QRSS30, QRSS60=
 or WSPR would allow greater ranges to be spanned than traditional modulat=
ion modes like normal speed CW, albeit not that far even so (kilometres at=
 best rather than hundreds of kilometres).

So, I wonder what OFCOM's view would be. Would a permit be needed at all?=
 If yes, would OFCOM issue Special Research Permits (NoVs) on a case-by-ca=
se basis as at 500kHz?=C2=A0=20

Kind regards

Roger Lapthorn=C2=A0 G3XBM=C2=A0 (500kHz NoV holder)

--=20
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/G3XBM
G3XBM =C2=A0 =C2=A0GQRP 1678 =C2=A0 =C2=A0 =C2=A0ISWL G11088

**************************************************************************=
****************************************
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This email (and any attachments) is confidential and intended for the use=
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This email has been scanned for viruses. However, you open any attachments=
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For more information please visit http://www.messagelabs.com/email=20
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--=20

http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/G3XBM
G3XBM =C2=A0 =C2=A0GQRP 1678 =C2=A0 =C2=A0 =C2=A0ISWL G11088



**************************************************************************=
****************************************
For more information visit www.ofcom.org.uk

This email (and any attachments) is confidential and intended for the use=
 of the addressee only.

If you have received this email in error please notify the originator of=
 the message and delete it from your system.

This email has been scanned for viruses. However, you open any attachments=
 at your own risk.

Any views expressed in this message are those of the individual sender and=
 do not represent the views or opinions of Ofcom unless expressly stated=
 otherwise.
**************************************************************************=
****************************************

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email=20
______________________________________________________________________



--=20

http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/G3XBM
G3XBM =C2=A0 =C2=A0GQRP 1678 =C2=A0 =C2=A0 =C2=A0ISWL G11088



     =20

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<table cellspacing=3D"0" cellpadding=3D"0" border=3D"0" ><tr><td valign=3D=
"top" style=3D"font: inherit;"><DIV>Well done Roger</DIV>
<DIV>&nbsp;</DIV>
<DIV>What happens with hard of hearing audio induction loops, they are eve=
ry where nowadays?</DIV>
<DIV>&nbsp;</DIV>
<DIV>Does this mean if we put a an OFW305 they will issue us with an NOV?<=
/DIV>
<DIV>&nbsp;</DIV>
<DIV>I am typing mine now!</DIV>
<DIV>&nbsp;</DIV>
<DIV>Thanks to G4JNT previously&nbsp;and Good Work Roger!!<BR><BR>73 es GL=
 petefmt<BR><BR>--- On <B>Thu, 25/2/10, Roger Lapthorn <I>&lt;rogerlapthor=
n@gmail.com&gt;</I></B> wrote:<BR></DIV>
<BLOCKQUOTE style=3D"BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT:=
 5px; MARGIN-LEFT: 5px"><BR>From: Roger Lapthorn &lt;rogerlapthorn@gmail.c=
om&gt;<BR>Subject: LF: Fwd: Special Permits for Amateur Radio Operation be=
low 9kHz?<BR>To: rsgb_lf_group@blacksheep.org<BR>Date: Thursday, 25 Februa=
ry, 2010, 17:19<BR><BR>
<DIV id=3Dyiv1006208761>People may be interested in the reply from Rod Wil=
kinson at OFCOM received today. I asked him what OFCOM's view would be. <B=
R><BR>
<DIV class=3Dgmail_quote>---------- Forwarded message ----------<BR>From:=
 <B class=3Dgmail_sendername>Rod Wilkinson</B> <SPAN dir=3Dltr>&lt;<A href=
=3D"http://uk.mc281.mail.yahoo.com/mc/compose?to=3DRod.Wilkinson@ofcom.org=
.uk" rel=3Dnofollow target=3D_blank ymailto=3D"mailto:Rod.Wilkinson@ofcom.=
org.uk">Rod.Wilkinson@ofcom.org.uk</A>&gt;</SPAN><BR>Date: 25 February 201=
0 15:20<BR>Subject: RE: Special Permits for Amateur Radio Operation below=
 9kHz?<BR>To: Roger Lapthorn &lt;<A href=3D"http://uk.mc281.mail.yahoo.com=
/mc/compose?to=3Drogerlapthorn@gmail.com" rel=3Dnofollow target=3D_blank=
 ymailto=3D"mailto:rogerlapthorn@gmail.com">rogerlapthorn@gmail.com</A>&gt=
;<BR><BR><BR>
<DIV lang=3DEN-GB>
<DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">Hello Roger,</SPAN></=
DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">Well, quicker than I=
 thought we=E2=80=99d be I have some info for you regarding the possibilit=
y of operating on 9kHz.</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">Apparently Ofcoms=E2=
=80=99 Spectrum Management Team were approached back in 2006 by Colin Thom=
as G3PSM in his role as RSGB Spectrum Director. We understood at that time=
 there was some interest in 9kHz, especially from Andy Talbot, G4JNT. Howe=
ver nothing came of it on that occasion.</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">That has though allow=
ed a head start this time and my colleagues in the Spectrum Team see no re=
ason why Amateur operation/experimentation can not take place on 9kHz. The=
y state that </SPAN><SPAN style=3D"FONT-SIZE: 11pt">ITU Radio Regs indicat=
e that there is no allocation for frequencies below 9 kHz. However in the=
 UK, a licence would be required as there is no lower frequency limit for=
 wireless telegraphy under the WT Act 2006. </SPAN><SPAN style=3D"FONT-SIZ=
E: 11pt">This would be in the form of a Notice of Variation for an existin=
g licensee and will be awarded much on the same lines as for operating on=
 501-504kHz. Also any operation will be subject to a non interference basi=
s to other active facilities and systems using that part of the spectrum.=
 We will need to revisit the likes of the Met Office who were approached=
 during the original enquires to confirm that they remain content with the=
 agreed
 arrangements.&nbsp; All this, will of course, need to be done prior to th=
e NoV being granted.</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">So it does seem a pos=
sibility and if you and any others wish to proceed please complete an appl=
ication from for a Special Research Permit available at:</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt"><A href=3D"http://www=
.ofcom.org.uk/radiocomms/ifi/licensing/classes/amateur/applications/ofw306=
.pdf" rel=3Dnofollow target=3D_blank>www.ofcom.org.uk/radiocomms/ifi/licen=
sing/classes/amateur/applications/ofw306.pdf</A></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">Please provide as muc=
h detail as possible and send it to me and I will liaise with appropriate=
 colleagues.</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">I hope that helps.</S=
PAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">Vy 73</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"FONT-SIZE: 11pt">Rod</SPAN></DIV>
<DIV class=3Dim>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: red; FONT-SIZE: 7.5pt">Rod=
 Wilkinson</SPAN></B><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">OLC Senior Associate, Amateur Radio</SPAN><SPAN style=3D"COLOR: rgb(31,=
73,125); FONT-SIZE: 11pt"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">020 7783 4488 (direct line)</SPAN><SPAN style=3D"COLOR: rgb(31,73,125);=
 FONT-SIZE: 11pt"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t"><A href=3D"http://uk.mc281.mail.yahoo.com/mc/compose?to=3DRod.wilkinson=
@ofcom.org.uk" rel=3Dnofollow target=3D_blank ymailto=3D"mailto:Rod.wilkin=
son@ofcom.org.uk">Rod.wilkinson@ofcom.org.uk</A></SPAN><SPAN style=3D"COLO=
R: rgb(31,73,125); FONT-SIZE: 11pt"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: fuchsia; FONT-SIZE: 7.5pt">O=
fcom</SPAN></B><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt"></SP=
AN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">Riverside House</SPAN><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE:=
 11pt"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">2a Southwark Bridge Road</SPAN><SPAN style=3D"COLOR: rgb(31,73,125); FO=
NT-SIZE: 11pt"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">London SE1 9HA</SPAN><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE:=
 11pt"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">020 7981 3000</SPAN><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11=
pt"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: blue; FONT-SIZE: 7.5pt"><A href=
=3D"http://www.ofcom.org.uk/" rel=3Dnofollow target=3D_blank>www.ofcom.org=
.uk</A></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: blue; FONT-SIZE: 7.5pt">&nbsp;<=
/SPAN></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: rgb(102,0,51); FONT-SIZE: 10=
pt">Have you changed</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10=
pt"> </SPAN></B><B><SPAN style=3D"COLOR: rgb(102,0,102); FONT-SIZE: 10pt">=
your address recently?</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SIZE:=
 10pt"> </SPAN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: rgb(0,153,204); FONT-SIZE:=
 10pt">Update your details</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SI=
ZE: 10pt"> </SPAN></B><B><SPAN style=3D"COLOR: rgb(204,204,0); FONT-SIZE:=
 10pt">on the</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10pt"> </=
SPAN></B><B><SPAN style=3D"COLOR: rgb(255,204,0); FONT-SIZE: 10pt">Ofcom=
 </SPAN></B><B><SPAN style=3D"COLOR: rgb(255,0,102); FONT-SIZE: 10pt">Amat=
eur and Ships</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10pt"> Li=
censing </SPAN></B><B><SPAN style=3D"COLOR: rgb(153,51,102); FONT-SIZE: 10=
pt">Service</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10pt"> </SP=
AN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10pt">&nbsp;=
</SPAN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE:=
 10pt"><A href=3D"http://www.ofcom.org.uk/licensing/olc/" rel=3Dnofollow=
 target=3D_blank>http://www.ofcom.org.uk/licensing/olc/</A></SPAN></B><B><=
SPAN style=3D"COLOR: red; FONT-SIZE: 10pt"> </SPAN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10pt">&nbsp;=
</SPAN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: red; FONT-SIZE: 7.5pt"><IMG=
 border=3D0 alt=3D"Ofcom - Office of Communications" src=3D"cid:1.32775317=
38@web28104.mail.ukl.yahoo.com" width=3D82 height=3D17></SPAN></B><SPAN st=
yle=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt"></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt"></SP=
AN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV></DIV>
<DIV style=3D"BORDER-BOTTOM: rgb(181,196,223); BORDER-LEFT: rgb(181,196,22=
3); PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP=
: rgb(181,196,223) 1pt solid; BORDER-RIGHT: rgb(181,196,223); PADDING-TOP:=
 3pt">
<P class=3DMsoNormal><B><SPAN style=3D"FONT-SIZE: 10pt" lang=3DEN-US>From:=
</SPAN></B><SPAN style=3D"FONT-SIZE: 10pt" lang=3DEN-US> Roger Lapthorn [m=
ailto:<A href=3D"http://uk.mc281.mail.yahoo.com/mc/compose?to=3Drogerlapth=
orn@gmail.com" rel=3Dnofollow target=3D_blank ymailto=3D"mailto:rogerlapth=
orn@gmail.com">rogerlapthorn@gmail.com</A>] <BR><B>Sent:</B> 23 February=
 2010 10:33 AM<BR><B>To:</B> Rod Wilkinson<BR><B>Subject:</B> Re: Special=
 Permits for Amateur Radio Operation below 9kHz?</SPAN></DIV></DIV>
<DIV>
<DIV></DIV>
<DIV class=3Dh5>
<P class=3DMsoNormal>&nbsp;</DIV>
<P style=3D"MARGIN-BOTTOM: 12pt" class=3DMsoNormal>Many thanks Rod. <BR><B=
R>I fully understand, and would expect, some delay in any response from OF=
COM regarding operation below 9kHz.<BR><BR>73s<BR>Roger G3XBM</DIV>
<DIV>
<P class=3DMsoNormal>On 23 February 2010 08:23, Rod Wilkinson &lt;<A href=
=3D"http://uk.mc281.mail.yahoo.com/mc/compose?to=3DRod.Wilkinson@ofcom.org=
.uk" rel=3Dnofollow target=3D_blank ymailto=3D"mailto:Rod.Wilkinson@ofcom.=
org.uk">Rod.Wilkinson@ofcom.org.uk</A>&gt; wrote:</DIV>
<DIV>
<DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">Hello Roger,</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">Many thanks for your very interesting mail.</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">To ensure that I obtain the correct answer regarding operating below 9kH=
z I will need to take advice from Ofcoms=E2=80=99 spectrum management team=
 and possibly the lawyers too. </SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">So please accept this as a holding reply and I will get back to you as=
 soon as possible. &nbsp;But be aware please that it may run into weeks ra=
ther than days.</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">Vy 73 </SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">Rod</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">PS &nbsp;sincere congratulations on exceed the 1000km mark on 500kHz!</S=
PAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: red; FONT-SIZE: 7.5pt">Rod=
 Wilkinson</SPAN></B></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">OLC Senior Associate, Amateur Radio</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">020 7783 4488 (direct line)</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t"><A href=3D"http://uk.mc281.mail.yahoo.com/mc/compose?to=3DRod.wilkinson=
@ofcom.org.uk" rel=3Dnofollow target=3D_blank ymailto=3D"mailto:Rod.wilkin=
son@ofcom.org.uk">Rod.wilkinson@ofcom.org.uk</A></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: fuchsia; FONT-SIZE: 7.5pt">O=
fcom</SPAN></B></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">Riverside House</SPAN></DIV>
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t">2a Southwark Bridge Road</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">London SE1 9HA</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 7.5p=
t">020 7981 3000</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: blue; FONT-SIZE: 7.5pt"><A href=
=3D"http://www.ofcom.org.uk/" rel=3Dnofollow target=3D_blank>www.ofcom.org=
.uk</A></SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: blue; FONT-SIZE: 7.5pt">&nbsp;<=
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pt">Have you changed</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10=
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your address recently?</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SIZE:=
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<P class=3DMsoNormal><B><SPAN style=3D"COLOR: rgb(0,153,204); FONT-SIZE:=
 10pt">Update your details</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SI=
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SPAN></B><B><SPAN style=3D"COLOR: rgb(255,204,0); FONT-SIZE: 10pt">Ofcom=
 </SPAN></B><B><SPAN style=3D"COLOR: rgb(255,0,102); FONT-SIZE: 10pt">Amat=
eur and Ships</SPAN></B><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10pt"> Li=
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AN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10pt">&nbsp;=
</SPAN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE:=
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SPAN style=3D"COLOR: red; FONT-SIZE: 10pt"> </SPAN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: red; FONT-SIZE: 10pt">&nbsp;=
</SPAN></B></DIV>
<P class=3DMsoNormal><B><SPAN style=3D"COLOR: red; FONT-SIZE: 7.5pt"><IMG=
 border=3D0 alt=3D"Ofcom - Office of Communications" src=3D"cid:1.32775317=
38@web28104.mail.ukl.yahoo.com" width=3D82 height=3D17></SPAN></B></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
<P class=3DMsoNormal><SPAN style=3D"COLOR: rgb(31,73,125); FONT-SIZE: 11pt=
">&nbsp;</SPAN></DIV>
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">&nbsp;</SPAN></DIV>
<DIV style=3D"BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDIN=
G-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: 1pt soli=
d; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=3DMsoNormal><B><SPAN style=3D"FONT-SIZE: 10pt" lang=3DEN-US>From:=
</SPAN></B><SPAN style=3D"FONT-SIZE: 10pt" lang=3DEN-US> Roger Lapthorn [m=
ailto:<A href=3D"http://uk.mc281.mail.yahoo.com/mc/compose?to=3Drogerlapth=
orn@gmail.com" rel=3Dnofollow target=3D_blank ymailto=3D"mailto:rogerlapth=
orn@gmail.com">rogerlapthorn@gmail.com</A>] <BR><B>Sent:</B> 22 February=
 2010 10:43 PM<BR><B>To:</B> Rod Wilkinson<BR><B>Subject:</B> Special Perm=
its for Amateur Radio Operation below 9kHz?</SPAN></DIV></DIV>
<DIV>
<DIV>
<P class=3DMsoNormal>&nbsp;</DIV>
<P class=3DMsoNormal>Dear Rod,<BR><BR>On the RSGB's LF reflector, there ha=
s been some discussion in the last few days about experimentation at frequ=
encies below 9kHz. Many years ago (around 1970) I held a couple of Test an=
d Development licences (G9BGU and G9BIB) for such experiments and I wrote=
 up the results in Radio Communications magazine in 1975. It's a fascinati=
ng part of the spectrum to explore.<BR><BR>In some countries the approval=
 authorities have simply said that below 9kHz is not allocated by the ITU=
 and therefore they have no issues with amateurs operating experimentally=
 in this part of the spectrum. As far as I am aware, the only use for freq=
uencies below 9kHz is for sferic monitoring, VLF emissions research (whist=
ler reception, etc), slow data rate signalling to submerged submarines (al=
though I believe this has now been replaced by other methods) and some slo=
w data rate FSK modulation of the mains power grid system. I cannot imagin=
e amateur
 operation being a credible interference threat to any of these.<BR><BR>At=
 such frequencies, any "antenna" erected by a radio amateur would, in a tr=
aditional sense, would be incredibly inefficient and far field radiation=
 immeasurably low. Therefore communication would, for all intents and purp=
oses, only be possible by conduction currents through earth or sea (so cal=
led "earth mode") or induction and not by radiation in a true radio sense.=
 Attenuation rates are therefore much higher and potential range very limi=
ted. I think some in the amateur radio community are interested in experim=
enting with very weak signal modes to "push the envelope" on range at thes=
e basement frequencies. There is no doubt that modes like QRSS30, QRSS60=
 or WSPR would allow greater ranges to be spanned than traditional modulat=
ion modes like normal speed CW, albeit not that far even so (kilometres at=
 best rather than hundreds of kilometres).<BR><BR>So, I wonder what OFCOM'=
s view
 would be. Would a permit be needed at all? If yes, would OFCOM issue Spec=
ial Research Permits (NoVs) on a case-by-case basis as at 500kHz?&nbsp; <B=
R><BR>Kind regards<BR><BR>Roger Lapthorn&nbsp; G3XBM&nbsp; (500kHz NoV hol=
der)<BR><BR>-- <BR><A href=3D"http://g3xbm-qrp.blogspot.com/" rel=3Dnofoll=
ow target=3D_blank>http://g3xbm-qrp.blogspot.com/</A><BR><A href=3D"http:/=
/www.g3xbm.co.uk/" rel=3Dnofollow target=3D_blank>http://www.g3xbm.co.uk</=
A><BR><A href=3D"http://www.youtube.com/user/G3XBM" rel=3Dnofollow target=
=3D_blank>http://www.youtube.com/user/G3XBM</A><BR>G3XBM &nbsp; &nbsp;GQRP=
 1678 &nbsp; &nbsp; &nbsp;ISWL G11088</DIV></DIV></DIV></DIV>
<P class=3DMsoNormal><BR><SPAN style=3D"COLOR: gray; FONT-SIZE: 10pt">****=
**************************************************************************=
************************************<BR>For more information visit <A href=
=3D"http://www.ofcom.org.uk/" rel=3Dnofollow target=3D_blank>www.ofcom.org=
.uk</A><BR><BR>This email (and any attachments) is confidential and intend=
ed for the use of the addressee only.<BR><BR>If you have received this ema=
il in error please notify the originator of the message and delete it from=
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__________________________________________________________________<BR>This=
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V></DIV></DIV>
<P class=3DMsoNormal><BR><BR clear=3Dall><BR>-- <BR><BR><A href=3D"http://=
g3xbm-qrp.blogspot.com/" rel=3Dnofollow target=3D_blank>http://g3xbm-qrp.b=
logspot.com/</A><BR><A href=3D"http://www.g3xbm.co.uk/" rel=3Dnofollow tar=
get=3D_blank>http://www.g3xbm.co.uk</A><BR><A href=3D"http://www.youtube.c=
om/user/G3XBM" rel=3Dnofollow target=3D_blank>http://www.youtube.com/user/=
G3XBM</A><BR>G3XBM &nbsp; &nbsp;GQRP 1678 &nbsp; &nbsp; &nbsp;ISWL G11088<=
/DIV></DIV></DIV></DIV>
<DIV>
<DIV></DIV>
<DIV class=3Dh5><BR><FONT color=3Dgray size=3D2 face=3DArial>*************=
**************************************************************************=
***************************<BR>For more information visit <A href=3D"http:=
//www.ofcom.org.uk/" rel=3Dnofollow target=3D_blank>www.ofcom.org.uk</A><B=
R><BR>This email (and any attachments) is confidential and intended for th=
e use of the addressee only.<BR><BR>If you have received this email in err=
or please notify the originator of the message and delete it from your sys=
tem.<BR><BR>This email has been scanned for viruses. However, you open any=
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</DIV></DIV></DIV></DIV><BR><BR clear=3Dall><BR>-- <BR><BR><A href=3D"http=
://g3xbm-qrp.blogspot.com/" rel=3Dnofollow target=3D_blank>http://g3xbm-qr=
p.blogspot.com/</A><BR><A href=3D"http://www.g3xbm.co.uk/" rel=3Dnofollow=
 target=3D_blank>http://www.g3xbm.co.uk</A><BR><A href=3D"http://www.youtu=
be.com/user/G3XBM" rel=3Dnofollow target=3D_blank>http://www.youtube.com/u=
ser/G3XBM</A><BR>G3XBM &nbsp; &nbsp;GQRP 1678 &nbsp; &nbsp; &nbsp;ISWL
 G11088<BR></DIV></BLOCKQUOTE></td></tr></table><br>



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