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Warren , Pete,
when back in the mid 90's the initial request for a longwave amateur segment (what later turned out to be 137kHz) was discussed,
one of the big telecom "bobo's" stated that they saw no harm that amateurs would transmit there with max. 1 W EIRP as with that power one wouldn't be able to get any further than the other end of the town.
It turned out a bit different, unless you see the world as one big town ;-)
73, Rik ON7YD
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Hi Warren and thanks
Your comments are well noted along with the good healthy dose of cynicism, I like that
....
hee hee!
73 es GL petefmt
From: Warren Ziegler <[email protected]>
Subject: Re: LF: Fwd: Special Permits for Amateur Radio Operation below 9kHz?
To: [email protected]
Date: Saturday, 27 February, 2010, 1:28
Hi Pete,
Yes I guess I engaged in a bit of hyperbole when I suggested that 9kHz won't cross the garden wall, but not by much.
If you reckon that the world record is 10km for an amateur and that was to receive a very faint ARGO trace then for a signal to be audible it must be considerably closer.
You comment on politics reminds of the old joke:
Q. Do you know the difference between capitalism and communism?
A. In capitalism its dog eat dog; in communism its the other way 'round !
--
73 Warren K2ORS
WD2XGJ
WD2XSH/23
WE2XEB/2
WE2XGR/1
On Fri, Feb 26, 2010 at 3:46 PM, M0FMT <[email protected]> wrote:
Hi Warren
Well I can tell you right now that the garden wall is not the limit by any means unless you live on John Wayne's Ranch.
Your New President is trying to create jobs over there? He wants to take a leaf out of our book we've been doing it for years... joking aside....... I am not expecting DX but to have a communication path that covers the local LF Amateur community on VLF would
be rather Cool I think. From there it may be a long road that I for one may not travel but at the moment there is enough enthusiasm locally to try out a few ideas many have come from this debate on the LF reflector. The near field signal is quite readable
at about 1/2 km from a very low power TX using a whip on RX during a quick wiz up the road in the car. Must key this thing my ears are ringing with this continuous beat note running all the time.
73 es GL petefmt
--------------------------------------------------
From: "Warren Ziegler" < [email protected]>
Sent: Thursday, February 25, 2010 9:31 PM
To: < [email protected]>
Subject: Re: LF: Fwd: Special Permits for Amateur Radio Operation below 9kHz?
Asking Ofcom for a license or Nov to generate a signal that will not
extend past your own garden seems like a lot of trouble for
nothing....
--
73 Warren K2ORS
WD2XGJ
WD2XSH/23
WE2XEB/2
WE2XGR/1
On Thu, Feb 25, 2010 at 3:28 PM, Jacek Lipkowski <[email protected]> wrote:
On Thu, 25 Feb 2010, Roger Lapthorn wrote:
People may be interested in the reply from Rod Wilkinson at OFCOM received
today. I asked him what OFCOM's view would be.
[...]
They state that ITU Radio Regs indicate 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. [...]
there is already a very big commercial user of the elf and vlf spectrum,
they inject very big power into ground dipoles. emissions from one continent
can be heard on another. and they do this without any license from the radio
authorities. the only regulation they need regards maximum field strengths
(and this is usually the realm of some environmental protection authority
and not the radio authority). the operating frequency varies, but is usually
50Hz, 60Hz, 16.6Hz etc :)
sometimes when dealing with the goverment, the best practice is not to ask
at all :) even if they agree with you there will always be a "but you will
need a license for that" clause.
if you have to ask, ask them if it is their duty to regulate potential
electromagnetic wave transmission from instalations operating on 50Hz (or
any other frequency in the 0-9kHz region, that is not ITU regulated). you
would probably get an entirely different answer :)
VY 73
Jacek / SQ5BPF
ps. the answer that you got from OFCOM is actually very nice
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