Hi Dane

I used to listen to the longwave band when I used to use my
ham radio, I heard more with my dipole then with my
transistor radio, I can see this band being phased out
eventually for radio stations, it will be used for aircraft
or something like that.

Regards

Adrien


-----Original Message-----
From: Pc-audio [mailto:pc-audio-boun...@pc-audio.org] On
Behalf Of Dane Trethowan
Sent: Saturday, June 07, 2014 3:35 PM
To: PC Audio Discussion List
Subject: Re: longwave radio

there's nothing much in Australia to be found and I've known
this ever since I got my first communications receiver
equipped with Long wave all those years ago <smile>, though
Australia did use Long Wave in the 20s and 30s.

The debate then was whether or not to keep using Long Wave,
those in favour of the Long Wave system pointed out the vast
distances Long Wave could travel using Ground wave thus any
signal received at the radio end was immune from the sort of
effects that Sky Wave cause, you only have to listen to
Short Wave broadcasts or broadcasts at the top end of the
Medium Wave band to know what I'm talking about here.

Those who were not in favour of the continuing use of the
Long Wave Band pointed out that Long Wave was more
seseptable to natural interference from thunderstorms
activity and so on, in any case the use of the Long Wave
band was given over to navigation beacons etc.


On 7 Jun 2014, at 11:22 pm, brian sackrider
<n8...@comcast.net> wrote:

> I use to have radio shaak dx400 radio and would tune
leftof the am broadcast band from 150-540 or so and the only
thing that I have ever heard on this band was those 3 letter
cw becons and weather and this was on a long wire antanna
and this was back in the 80's.  In 1986 I went toEurop and
they did broadcast on this band but it was in their own
langueges. I think that those 3 letter cw stations might be
airport navagation stations and this is my experiences with
the long wave band.
> Brian Sackrider
> On 6/7/2014 6:19 AM, Colin Howard wrote:
>> Dane,
>> 
>> No, they are not taking it off air in 2016, 2020 at the
very very earliest.
>> 
>> Do you want a long wave scan or just samples of stations?
>> 
>> I am quite happy to do a scann for you, waiting on each
station for a few
>> minutes, but please be aware, I am located only three
miles from the local
>> transmitter which carries A.M services and we get some
imaging at the hf end
>> of long wave.
>> 
>> As for sets being sold with long wave, I am not aware of
any lack, certainly
>> down here in Hampshire.
>> 
>> Radio 4 is on 198kHz and RTE1 (or is it 2)? is on 252kHz.
R4 is reasonable
>> but again, suffers problems due to the local A.M
transmitter, primarily
>> because we have Talk Sport on 1107kHz which generates a
hetrodyne on 198kHz,
>> I have not yet found a radio which totally nulls this, if
you care to work
>> it out, 1107 minus 198 = more or less double the i.f of
many sets, i.e 909,
>> most sets have an i.f of 465, 455 is half 909, rather
close to the i.f of
>> 465, which most sets tend to use, least those which have
a.m on the lf and
>> mf bands.
>> 
>> 
>> RTE on 252 here, is not very strong, but then being on
the south coast, the
>> signal not really being very strong from the transmitter,
it not really a
>> surprise.
>> 
>> 
>> 
>> 
> 
> 


**********

Dane Trethowan
Skype: grtdane12
Phone US (213) 438-9741
Phone U.K. 01245 79 0598
Phone Australia (03) 9005 8589
Mobile: +61400494862
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Fax +61397437954
Twitter: @grtdane



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