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date: Fri, 27 Jun 2008 17:35:21 +0100,    group: uk.radio.amateur        back       
Sat Nav Bargain (OT)   
http://www.ebuyer.com/product/131342

Free delivery too...

tox
date: Fri, 27 Jun 2008 17:35:21 +0100   author:   Your Worst Nightmare trabant owners club@Nicks place.comco

Re: Sat Nav Bargain (OT)   
"Your Worst Nightmare" <trabant owners club@Nicks place.comco> wrote in 
message news:ly89k.145969$1B6.112459@newsfe21.ams2...
> http://www.ebuyer.com/product/131342
>
> Free delivery too...
>
> tox
>

is it DIGITAL ?........
date: Fri, 27 Jun 2008 19:14:13 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
On Fri, 27 Jun 2008 19:14:13 +0100
"Jimbo ...Every Silver Lining Has A Cloud" 
wrote:

> 
> "Your Worst Nightmare" <trabant owners club@Nicks place.comco> wrote in 
> message news:ly89k.145969$1B6.112459@newsfe21.ams2...
> > http://www.ebuyer.com/product/131342
> >
> > Free delivery too...
> >
> > tox
> >
> 
> is it DIGITAL ?........ 
> 
> 

Of course, have you any idea how inaccurate an analogue positioning
system would be? Without the use of digital electronics it would be
essentially impossible on any scale greater than a few units worldwide,
and those requiring constant adjustment and care to maintain even that.

-- 

Brian Morrison

bdm at fenrir dot org dot uk

   "Arguing with an engineer is like wrestling with a pig in the mud;
    after a while you realize you are muddy and the pig is enjoying it."
    
GnuPG key ID DE32E5C5 - http://wwwkeys.uk.pgp.net/pgpnet/wwwkeys.html
date: Fri, 27 Jun 2008 19:18:27 +0100   author:   Brian Morrison

Re: Sat Nav Bargain (OT)   
> is it DIGITAL ?........
>
>

very nice burd in the video ....

http://www.ebuyer.com/product/131342
date: Fri, 27 Jun 2008 19:20:46 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
>>
>> is it DIGITAL ?........
>>
>>
>
> Of course, have you any idea how inaccurate an analogue positioning
> system would be? Without the use of digital electronics it would be
> essentially impossible on any scale greater than a few units worldwide,
> and those requiring constant adjustment and care to maintain even that.
>
James Bond had one in his DB6 .......
date: Fri, 27 Jun 2008 19:22:23 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
> very nice burd in the video ....
>
> http://www.ebuyer.com/product/131342
>

f**K  at 04.04 she nearly hit that van !!!!!  wumin drivers !!!!
date: Fri, 27 Jun 2008 19:24:15 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
"Jimbo ...Every Silver Lining Has A Cloud"  wrote 
in message news:gfa9k.52720$aE7.43457@newsfe16.ams2...
>
>> very nice burd in the video ....
>>
>> http://www.ebuyer.com/product/131342
>>
>
> f**K  at 04.04 she nearly hit that van !!!!!  wumin drivers !!!!
>

but she is still booootefull ........
date: Fri, 27 Jun 2008 19:27:21 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
she says I can't go wrong...so I ordered one ........
date: Fri, 27 Jun 2008 19:28:20 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
limbo ...Every Silver Lining Has A Cloud wrote:
> she says I can't go wrong...so I ordered one ........ 
> 
> 

I'll look out for it appearing on ebay ......

Steve H
date: Fri, 27 Jun 2008 19:37:10 +0100   author:   Steve H

Re: Sat Nav Bargain (OT)   
> I'll look out for it appearing on ebay ......
>
> Steve H

she said I can't go wrong .......
date: Fri, 27 Jun 2008 19:44:02 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
On Fri, 27 Jun 2008 19:18:27 +0100, Brian Morrison 
wrote:


>have you any idea how inaccurate an analogue positioning
>system would be?

Yes.  I've seen women attempting to parallel park

Nick.
date: Fri, 27 Jun 2008 21:22:57 +0100   author:   unknown

Re: Sat Nav Bargain (OT)   
Jimbo ...Every Silver Lining Has A Cloud wrote:
> she says I can't go wrong...so I ordered one ........ 

Well, it looked very slow at calculating the route, and the TomTom has a 
much better user interface!  That one just seemed more complicated than 
it needed to be!
date: Fri, 27 Jun 2008 22:41:42 -0400   author:   class_a

Re: Sat Nav Bargain (OT)   
"class_a"  wrote in message 
news:B7udnW-29vJLOfjVnZ2dnUVZ_sWdnZ2d@comcast.com...
> Jimbo ...Every Silver Lining Has A Cloud wrote:
>> she says I can't go wrong...so I ordered one ........
>
> That one just seemed more complicated than it needed to be!

For you and the other Muppet, almost certainly!

tox
date: Sat, 28 Jun 2008 04:37:21 +0100   author:   Your Worst Nightmare trabant owners club@Nicks place.comco

Re: Sat Nav Bargain (OT)   
Your Worst Nightmare wrote:
> "class_a"  wrote in message 
> news:B7udnW-29vJLOfjVnZ2dnUVZ_sWdnZ2d@comcast.com...
>> Jimbo ...Every Silver Lining Has A Cloud wrote:
>>> she says I can't go wrong...so I ordered one ........
>> That one just seemed more complicated than it needed to be!
> 
> For you and the other Muppet, almost certainly!

So you think things should be more complicated than necessary?  Good 
luck if you ever develop any product for public sale then!!!
date: Sat, 28 Jun 2008 02:51:12 -0400   author:   class_a

Re: Sat Nav Bargain (OT)   
> Of course, have you any idea how inaccurate an analogue positioning
> system would be? Without the use of digital electronics it would be
> essentially impossible on any scale greater than a few units worldwide,
> and those requiring constant adjustment and care to maintain even that.
>

DECCA seemed to work OK with similar accuracy to civilian GPS, before 
digital electronics was used!!

73
Jeff
date: Sat, 28 Jun 2008 10:21:41 +0100   author:   Jeff

Re: Sat Nav Bargain (OT)   
> DECCA seemed to work OK with similar accuracy to civilian GPS, before
> digital electronics was used!!
>
> 73
> Jeff
>

did they not do Rolling Stones records ? .........
date: Sat, 28 Jun 2008 11:15:41 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
>>> That one just seemed more complicated than it needed to be!
>>
>> For you and the other Muppet, almost certainly!
>
> So you think things should be more complicated than necessary?  Good luck 
> if you ever develop any product for public sale then!!!


I think you are right...but she was SO nice ..........
date: Sat, 28 Jun 2008 11:16:59 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
"Jimbo ...Every Silver Lining Has A Cloud"  wrote 
in message news:dbo9k.129191$NN3.30356@newsfe08.ams2...
>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>> digital electronics was used!!
>
> did they not do Rolling Stones records ? .........

RU thinking of Desmond Decker?
date: Sat, 28 Jun 2008 11:20:46 +0100   author:   12 WPM Class A lid

Re: Sat Nav Bargain (OT)   
> I think you are right...but she was SO nice ..........
>
>

just watched her again....what kind of accent is that ? ........
date: Sat, 28 Jun 2008 11:21:29 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
"12 WPM Class A" <invalid@invalid.invalid> wrote in message 
news:g453a1$v8$1@news.albasani.net...
> "Jimbo ...Every Silver Lining Has A Cloud"  wrote 
> in message news:dbo9k.129191$NN3.30356@newsfe08.ams2...
>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>> digital electronics was used!!
>>
>> did they not do Rolling Stones records ? .........
>
> RU thinking of Desmond Decker?
>
>

radar love ?.....
date: Sat, 28 Jun 2008 11:31:18 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
Jimbo ...Every Silver Lining Has A Cloud wrote:
> "12 WPM Class A" <invalid@invalid.invalid> wrote in message 
> news:g453a1$v8$1@news.albasani.net...
>> "Jimbo ...Every Silver Lining Has A Cloud"  wrote 
>> in message news:dbo9k.129191$NN3.30356@newsfe08.ams2...
>>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>>> digital electronics was used!!
>>> did they not do Rolling Stones records ? .........
>> RU thinking of Desmond Decker?
>>
>>
> 
> radar love ?..... 
> 
> 
Was that not Golden Earrings?
date: Sat, 28 Jun 2008 11:38:55 +0100   author:   GM0ONX

Re: Sat Nav Bargain (OT)   
"Jimbo ...Every Silver Lining Has A Cloud"  wrote 
in message news:Tpo9k.129202$NN3.115856@newsfe08.ams2...
> "12 WPM Class A" <invalid@invalid.invalid> wrote in message 
> news:g453a1$v8$1@news.albasani.net...
>> "Jimbo ...Every Silver Lining Has A Cloud"  
>> wrote in message news:dbo9k.129191$NN3.30356@newsfe08.ams2...
>>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>>> digital electronics was used!!
>>> did they not do Rolling Stones records ? .........
>> RU thinking of Desmond Decker?
> radar love ?.....

'sonar a bird in a gilded cage?
date: Sat, 28 Jun 2008 11:41:30 +0100   author:   12 WPM Class A lid

Re: Sat Nav Bargain (OT)   
"GM0ONX"  wrote in message 
news:g454c0$2jo$2@news.albasani.net...
> Jimbo ...Every Silver Lining Has A Cloud wrote:
>> "12 WPM Class A" <invalid@invalid.invalid> wrote in message 
>> news:g453a1$v8$1@news.albasani.net...
>>> "Jimbo ...Every Silver Lining Has A Cloud"  
>>> wrote in message news:dbo9k.129191$NN3.30356@newsfe08.ams2...
>>>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>>>> digital electronics was used!!
>>>> did they not do Rolling Stones records ? .........
>>> RU thinking of Desmond Decker?
>>>
>>>
>>
>> radar love ?.....
> Was that not Golden Earrings?
>

speak for yourself ducky .......
date: Sat, 28 Jun 2008 11:42:26 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
"Jeff"  wrote in message 
news:486602dd$0$1350$834e42db@reader.greatnowhere.com...
>
>> Of course, have you any idea how inaccurate an analogue positioning
>> system would be? Without the use of digital electronics it would be
>> essentially impossible on any scale greater than a few units worldwide,
>> and those requiring constant adjustment and care to maintain even that.
>>
>
> DECCA seemed to work OK with similar accuracy to civilian GPS, before 
> digital electronics was used!!
>

But the coverage was limited and the accuracy nothing like the current GPS.

-- 
73
Brian, G8OSN
www.g8osn.org.uk
date: Sat, 28 Jun 2008 18:14:33 +0100   author:   Brian Reay lid

Re: Sat Nav Bargain (OT)   
On Sat, 28 Jun 2008 11:15:41 +0100, "Jimbo ...Every Silver Lining Has
A Cloud"  wrote:

>
>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>> digital electronics was used!!
>>
>> 73
>> Jeff
>>
>
>did they not do Rolling Stones records ? ......... 

It was actually the same company!

73 de G3NYY

-- 
Walt Davidson                               Email: g3nyy @despammed.com
date: Sat, 28 Jun 2008 20:10:56 +0100   author:   Walt Davidson

Re: Sat Nav Bargain (OT)   
On Sat, 28 Jun 2008 18:14:33 +0100, "Brian Reay" <see@website.invalid>
wrote:

>> DECCA seemed to work OK with similar accuracy to civilian GPS, before 
>> digital electronics was used!!
>>
>
>But the coverage was limited and the accuracy nothing like the current GPS.

And it caused terrible QRM on Top Band.

73 de G3NYY

-- 
Walt Davidson                               Email: g3nyy @despammed.com
date: Sat, 28 Jun 2008 20:11:54 +0100   author:   Walt Davidson

Re: Sat Nav Bargain (OT)   
"Walt Davidson"  wrote in message 
news:073d64dgp3rdt7a7seq5klusj0okovgn71@4ax.com...
> On Sat, 28 Jun 2008 18:14:33 +0100, "Brian Reay" <see@website.invalid>
> wrote:
>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>> digital electronics was used!!
>>But the coverage was limited and the accuracy nothing like the current 
>>GPS.
> And it caused terrible QRM on Top Band.

"Jingle Bells" at about 1.95?

Red, green and purple slaves, ISTR.
date: Sat, 28 Jun 2008 20:21:27 +0100   author:   12 WPM Class A lid

Re: Sat Nav Bargain (OT)   
On Sat, 28 Jun 2008 10:21:41 +0100
"Jeff"  wrote:

> 
> > Of course, have you any idea how inaccurate an analogue positioning
> > system would be? Without the use of digital electronics it would be
> > essentially impossible on any scale greater than a few units worldwide,
> > and those requiring constant adjustment and care to maintain even that.
> >
> 
> DECCA seemed to work OK with similar accuracy to civilian GPS, before 
> digital electronics was used!!

Don't agree. Decca was good for repeatability of finding a particular
spot with the same kit and the same installation (one reason it was
popular with fishermen) but it's absolute accuracy was poor.

-- 

Brian Morrison

bdm at fenrir dot org dot uk

   "Arguing with an engineer is like wrestling with a pig in the mud;
    after a while you realize you are muddy and the pig is enjoying it."
    
GnuPG key ID DE32E5C5 - http://wwwkeys.uk.pgp.net/pgpnet/wwwkeys.html
date: Sat, 28 Jun 2008 20:34:41 +0100   author:   Brian Morrison

Re: Sat Nav Bargain (OT)   
"12 WPM Class A" <invalid@invalid.invalid> wrote in message 
news:g462vr$316$1@news.albasani.net...
> "Walt Davidson"  wrote in message 
> news:073d64dgp3rdt7a7seq5klusj0okovgn71@4ax.com...
>> On Sat, 28 Jun 2008 18:14:33 +0100, "Brian Reay" <see@website.invalid>
>> wrote:
>>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>>> digital electronics was used!!
>>>But the coverage was limited and the accuracy nothing like the current 
>>>GPS.
>> And it caused terrible QRM on Top Band.
>
> "Jingle Bells" at about 1.95?

That was HiFix, which operated around 1.6-2.0MHz.

Decca Navigator was much lower in frequency- under 150kHz if memory serves.
date: Sat, 28 Jun 2008 20:37:42 +0100   author:   Brian Reay

Re: Sat Nav Bargain (OT)   
"Brian Morrison"  wrote in message 
news:20080628203441.00b12e11@peterson.fenrir.org.uk...
> On Sat, 28 Jun 2008 10:21:41 +0100
> "Jeff"  wrote:
>
>>
>> > Of course, have you any idea how inaccurate an analogue positioning
>> > system would be? Without the use of digital electronics it would be
>> > essentially impossible on any scale greater than a few units worldwide,
>> > and those requiring constant adjustment and care to maintain even that.
>> >
>>
>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>> digital electronics was used!!
>
> Don't agree. Decca was good for repeatability of finding a particular
> spot with the same kit and the same installation (one reason it was
> popular with fishermen) but it's absolute accuracy was poor.
>


Maybe near the "baseline" but it was prone to skywave errors and "lane 
jumping" further afield, although some receivers were better at spotting 
lane jumping (relying on the "multipulse" facility). I recall working on a 
technique using Kalman filters to integrate several navigation systems to 
provide and enhanced navigation performance. Note: K in Kalman is nothing to 
do with "Big K" ;-)

Loran was better than Decca. I'm not sure if Loran is still in use. Maybe a 
Google will tell.

--
73
Brian
www.g8osn.org.uk
date: Sat, 28 Jun 2008 20:51:22 +0100   author:   Brian Reay

Re: Sat Nav Bargain (OT)   
In message <3qw9k.207378$M63.15131@newsfe13.ams2>, Brian Reay 
 writes
>
>"12 WPM Class A" <invalid@invalid.invalid> wrote in message 
>news:g462vr$316$1@news.albasani.net...
>> "Walt Davidson"  wrote in message 
>>news:073d64dgp3rdt7a7seq5klusj0okovgn71@4ax.com...
>>> On Sat, 28 Jun 2008 18:14:33 +0100, "Brian Reay" <see@website.invalid>
>>> wrote:
>>>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>>>> digital electronics was used!!
>>>>But the coverage was limited and the accuracy nothing like the 
>>>>current GPS.
>>> And it caused terrible QRM on Top Band.
>>
>> "Jingle Bells" at about 1.95?
>
>That was HiFix, which operated around 1.6-2.0MHz.
>
>Decca Navigator was much lower in frequency- under 150kHz if memory serves.
>
On Top Band, the majority of the HiFix (which started operation around 
1961) were on 1900kHz (+/-). There were one or two chains on other 
frequencies, and there were also a few outside Top Band. Loran (from 
Benbecula, with very occasionally a slave operating from 
Newton-by-the-Sea) on 1950kHz, used to knock out 1925 to 1975kHz at 
night. The American Loran used to appear on winter nights on 1850kHz. 
And then we had the fish-phone stations which would pop up without 
warning. Great stuff. The youngsters of today don't know they are born!
-- 
Ian
date: Sat, 28 Jun 2008 21:20:18 +0100   author:   Ian Jackson

Re: Sat Nav Bargain (OT)   
"Ian Jackson"  wrote in message 
news:tbcvlbYC0pZIFwGV@g3ohx.demon.co.uk...
> In message <3qw9k.207378$M63.15131@newsfe13.ams2>, Brian Reay 
>  writes
>>
>>"12 WPM Class A" <invalid@invalid.invalid> wrote in message 
>>news:g462vr$316$1@news.albasani.net...
>>> "Walt Davidson"  wrote in message 
>>> news:073d64dgp3rdt7a7seq5klusj0okovgn71@4ax.com...
>>>> On Sat, 28 Jun 2008 18:14:33 +0100, "Brian Reay" <see@website.invalid>
>>>> wrote:
>>>>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>>>>> digital electronics was used!!
>>>>>But the coverage was limited and the accuracy nothing like the current 
>>>>>GPS.
>>>> And it caused terrible QRM on Top Band.
>>>
>>> "Jingle Bells" at about 1.95?
>>
>>That was HiFix, which operated around 1.6-2.0MHz.
>>
>>Decca Navigator was much lower in frequency- under 150kHz if memory 
>>serves.
>>
> On Top Band, the majority of the HiFix (which started operation around 
> 1961) were on 1900kHz (+/-). There were one or two chains on other 
> frequencies, and there were also a few outside Top Band. Loran (from 
> Benbecula, with very occasionally a slave operating from 
> Newton-by-the-Sea) on 1950kHz, used to knock out 1925 to 1975kHz at night. 
> The American Loran used to appear on winter nights on 1850kHz. And then we 
> had the fish-phone stations which would pop up without warning. Great 
> stuff. The youngsters of today don't know they are born!

|Your memory is good!

I seem to recall that Hifix could operate in two modes- one hyperbolic like 
Decca, the other a ranging system. It was developed into a later system 
called, I think, Hyperfix. Later still came Deltafix, which used DGPS type 
enhancements. I recall looking out the transmitter near Seahouses some time 
back.

I assume this has all gone now that selective availability is no more.

--
73
Brian
www.g8osn.org.uk
date: Sat, 28 Jun 2008 21:43:44 +0100   author:   Brian Reay

Re: Sat Nav Bargain (OT)   
"Brian Reay"  wrote in message 
news:UCw9k.207381$M63.180919@newsfe13.ams2...
> Note: K in Kalman is nothing to do with "Big K" ;-)

When someone with an excess of self importance sets out
to want to cause insult, he demeans himself and the only
person he abuses is himself.

You have a history of self-abuse, OM.
date: Sat, 28 Jun 2008 21:58:43 +0100   author:   12 WPM Class A lid

Re: Sat Nav Bargain (OT)   
In message <5ox9k.101069$P83.21074@newsfe20.ams2>, Brian Reay 
 writes
>
>"Ian Jackson"  wrote in message 
>news:tbcvlbYC0pZIFwGV@g3ohx.demon.co.uk...
>> In message <3qw9k.207378$M63.15131@newsfe13.ams2>, Brian Reay 
>> writes
>>>
>>>"12 WPM Class A" <invalid@invalid.invalid> wrote in message 
>>>news:g462vr$316$1@news.albasani.net...
>>>> "Walt Davidson"  wrote in message 
>>>>news:073d64dgp3rdt7a7seq5klusj0okovgn71@4ax.com...
>>>>> On Sat, 28 Jun 2008 18:14:33 +0100, "Brian Reay" <see@website.invalid>
>>>>> wrote:
>>>>>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>>>>>> digital electronics was used!!
>>>>>>But the coverage was limited and the accuracy nothing like the 
>>>>>>current GPS.
>>>>> And it caused terrible QRM on Top Band.
>>>>
>>>> "Jingle Bells" at about 1.95?
>>>
>>>That was HiFix, which operated around 1.6-2.0MHz.
>>>
>>>Decca Navigator was much lower in frequency- under 150kHz if memory 
>>>serves.
>>>
>> On Top Band, the majority of the HiFix (which started operation 
>>around  1961) were on 1900kHz (+/-). There were one or two chains on 
>>other  frequencies, and there were also a few outside Top Band. Loran 
>>(from  Benbecula, with very occasionally a slave operating from 
>>Newton-by-the-Sea) on 1950kHz, used to knock out 1925 to 1975kHz at 
>>night.  The American Loran used to appear on winter nights on 1850kHz. 
>>And then we  had the fish-phone stations which would pop up without 
>>warning. Great  stuff. The youngsters of today don't know they are born!
>
>|Your memory is good!
>
>I seem to recall that Hifix could operate in two modes- one hyperbolic 
>like Decca, the other a ranging system. It was developed into a later 
>system called, I think, Hyperfix. Later still came Deltafix, which used 
>DGPS type enhancements. I recall looking out the transmitter near 
>Seahouses some time back.
>
>I assume this has all gone now that selective availability is no more.
>
I was very familiar with the HiFix TX at Seahouses. I believe it was one 
of the first put into operation. It has long since gone, but here is now 
a much taller mast there (for the LF Decca version, I believe).

The 1950kHz Loran slave/relay at Newton-by-the-Sea was (fortunately) 
almost never used. When it was on, it was only for a few days at a time 
(coinciding, I think, with various NATO naval exercises in the North 
Sea). It was probably relatively low power, but it could really make a 
mess of 160m. However, in 1961, although the Loran was operating one 
particular Sunday, I still managed to get the highest 160m score in a 
Raynet contest* as an 'outstation', operating from Boulmer, which is 
just a couple of miles further down the coast.
* Yes, Raynet used to hold contests.

I remember that the RSGB hailed the introduction of HiFix as a great 
idea, claiming that it would cause little interference to amateur radio. 
This would have been true if HiFix had bothered to include a key-click 
filter in the transmitters (well, they certainly appeared to have 
forgotten it in the one at Seahouses). Unfortunately, the RSGB seemed 
disinclined to make any representations to HiFix about the unnecessary 
key-clicks. However, after about a year of operation, the clicks from 
the Seahouses transmitter did abate considerably.
-- 
Ian
date: Sat, 28 Jun 2008 23:12:57 +0100   author:   Ian Jackson

Re: Sat Nav Bargain (OT)   
>  The youngsters of today don't know they are born!

or how quickly they are going to die .......
date: Sun, 29 Jun 2008 00:34:33 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
"Walt Davidson"  wrote in message 
news:n43d64tesdeomp2cpvqloquj5bfdellsf9@4ax.com...
> On Sat, 28 Jun 2008 11:15:41 +0100, "Jimbo ...Every Silver Lining Has
> A Cloud"  wrote:
>
>>
>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before
>>> digital electronics was used!!
>>>
>>> 73
>>> Jeff
>>>
>>
>>did they not do Rolling Stones records ? .........
>
> It was actually the same company!
>
> 73 de G3NYY

DECCA DECCA DECCA ...................
date: Sun, 29 Jun 2008 00:36:02 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
"Ian Jackson"  wrote in message 
news:qnmuKhipdrZIFwEe@g3ohx.demon.co.uk...
 >>I assume this has all gone now that selective availability is no more.
>>
> I was very familiar with the HiFix TX at Seahouses. I believe it was one 
> of the first put into operation. It has long since gone, but here is now a 
> much taller mast there (for the LF Decca version, I believe).

I was trying to fix the period I visited Seahouses to see the set up. I'm 
pretty sure it was between May '83 and May '87- based on the car I think we 
were in. I suspect it was summer '83- we did something of a "whistle-stop 
tour" of Northumberland then- visiting some of the places I used to visit on 
my bicycle or motorcycle.

>
> The 1950kHz Loran slave/relay at Newton-by-the-Sea was (fortunately) 
> almost never used.

I know Newton-by-the Sea- aka "Lower Newton" I think. (There is also an 
Upper Newton).

Delightful place but I've not been there in years (I think last time I was 
there I was riding on a bicycle!)

I must add it to my "must visit" list for our next expedition to the North 
;-)

>When it was on, it was only for a few days at a time (coinciding, I think, 
>with various NATO naval exercises in the North Sea). It was probably 
>relatively low power, but it could really make a mess of 160m. However, in 
>1961, although the Loran was operating one particular Sunday, I still 
>managed to get the highest 160m score in a Raynet contest* as an 
>'outstation', operating from Boulmer, which is just a couple of miles 
>further down the coast.

Oh yes, Boulmer. Another place to revisit.

> * Yes, Raynet used to hold contests.

RAYNET contests strike me as a good idea. I may suggest it to them.

> I remember that the RSGB hailed the introduction of HiFix as a great idea, 
> claiming that it would cause little interference to amateur radio. This 
> would have been true if HiFix had bothered to include a key-click filter 
> in the transmitters (well, they certainly appeared to have forgotten it in 
> the one at Seahouses). Unfortunately, the RSGB seemed disinclined to make 
> any representations to HiFix about the unnecessary key-clicks. However, 
> after about a year of operation, the clicks from the Seahouses transmitter 
> did abate considerably.

I don't recall that- you must be going back some years. Any idea of dates?

-- 
73
Brian, G8OSN
www.g8osn.org.uk
date: Sun, 29 Jun 2008 08:00:28 +0100   author:   Brian Reay lid

Re: Sat Nav Bargain (OT)   
> or motorcycle.
>

there you go! .... you can't be all bad.........
date: Sun, 29 Jun 2008 08:37:37 +0100   author:   Jimbo ...Every Silver Lining Has A Cloud

Re: Sat Nav Bargain (OT)   
Walt Davidson wrote:

>On Sat, 28 Jun 2008 18:14:33 +0100, "Brian Reay" <see@website.invalid>
>wrote:
>
>>> DECCA seemed to work OK with similar accuracy to civilian GPS, before 
>>> digital electronics was used!!
>>>
>>
>>But the coverage was limited and the accuracy nothing like the current GPS.
>
>And it caused terrible QRM on Top Band.
>
>73 de G3NYY

I thought that was LORAN, as used for the Dresden raid.
-- 

from
Aero Spike
date: Sun, 29 Jun 2008 08:39:18 +0100   author:   Spike Aero.Spike@S&T.invalid

Re: Sat Nav Bargain (OT)   
In message <zrG9k.136080$8k.62905@newsfe18.ams2>, Brian Reay 
<see@website.invalid> writes
>
>
>"Ian Jackson"  wrote in message
>news:qnmuKhipdrZIFwEe@g3ohx.demon.co.uk...
>
>> I remember that the RSGB hailed the introduction of HiFix as a great idea,
>> claiming that it would cause little interference to amateur radio. This
>> would have been true if HiFix had bothered to include a key-click filter
>> in the transmitters (well, they certainly appeared to have forgotten it in
>> the one at Seahouses). Unfortunately, the RSGB seemed disinclined to make
>> any representations to HiFix about the unnecessary key-clicks. However,
>> after about a year of operation, the clicks from the Seahouses transmitter
>> did abate considerably.
>
>I don't recall that- you must be going back some years. Any idea of dates?
>

1961 - when the Seahouses HiFix started.

Of course, in those days, the RSGB was much more of a gentleman's club 
than it is today. They really didn't like to rock the boat too much if 
they felt that they could get something achieved by the back door. Maybe 
they did help to get the key-clicks fixed. However, I have a feeling 
that the original transmitter was replaced for some other operational 
reason.
-- 
Ian
date: Sun, 29 Jun 2008 09:15:28 +0100   author:   Ian Jackson

Re: Sat Nav Bargain (OT)   
well got it in the post today...had a fiddle...flung it to one side as I 
can't be bothered reading the instructions...looks well made though for £50 
........
date: Tue, 1 Jul 2008 17:56:23 +0100   author:   Jimbo....

Re: Sat Nav Bargain (OT)   
On Tue, 1 Jul 2008 17:56:23 +0100, "Jimbo...."
 wrote:

>well got it in the post today...had a fiddle...flung it to one side as I 
>can't be bothered reading the instructions...looks well made though for £50 
>........ 

What did you buy it for, Jimbo?  Just to resell it on eBay?

73 de Wlat

-- 
Walt Davidson                               Email: g3nyy @despammed.com
date: Tue, 01 Jul 2008 18:57:07 +0100   author:   Walt Davidson

Re: Sat Nav Bargain (OT)   
>>well got it in the post today...had a fiddle...flung it to one side as I
>>can't be bothered reading the instructions...looks well made though for 
>>£50
>>........
>
> What did you buy it for, Jimbo?  Just to resell it on eBay?
>
> 73 de Wlat

seemed a good idea at the time........But I never get lost.......have 
gadgets coming out of my ears that I don't use........it was cheap .........
date: Tue, 1 Jul 2008 20:48:23 +0100   author:   Jimbo....

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