[UK-CONTEST] UK-Contest Digest, Vol 37, Issue 7

[brian coyne]

 Getting that 3dB gain on receive on the weak stations
is what it is all about. - G3RTE.

As the Scottish contingent will agree it isn't rx that
is the problem. From the west country and GM we can hr
ok but can't make ourselves heard. Central england is
bombarded by high angle stuff at far greater
strengths, in fact it is easier for stns in the far
west to work GM from quite early hours than it is to
contact centrally located stns. By the time skip
lengthens, because they have spent so much time
waiting in line, stations on the perimeter are so far
behind that catch up is not a possibility.

An insoluble problem that no combination of antennas
can much assist with, given the hours that AFS takes
place. - believe it.

73  Brian (5B/G4ODV)

 




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> Today's Topics:
> 
>    1. AFS Antenna (j kellaway)
>    2. Re: FT1000Mp Mk V display (G4FNL)
>    3. Re: FT1000Mp Mk V display (Dave Sergeant)
> 
> 
>
----------------------------------------------------------------------
> 
> Message: 1
> Date: Tue, 3 Jan 2006 18:41:28 -0000
> From: "j kellaway" <jkellaway at btinternet.com>
> Subject: [UK-CONTEST] AFS Antenna
> To: <UK-Contest at contesting.com>
> Message-ID:
> <006f01c61095$4ecc9640$0301a8c0 at KELLAWAY>
> Content-Type: text/plain;	charset="iso-8859-1"
> 
> I think if I lived in Scotland or even northern G
> and had the space I would go for a wire beam with
> reflector behind and not underneath the driven
> element firing south of course.  In fact I would do
> that from where I am now in the SE but firing north
> but alas no room.  I would even do that if I lived
> down in the good old West Country.  Getting that 3dB
> gain on receive on the weak stations is what it is
> all about.
> 
> In think the guy who said he was thinking of using
> an inverted L instead of his wire wrapped around the
> garden would better off sticking to what he has
> used.  He probably losses the odd dB or so by
> bending it around.  When you're S9+ does it matter? 
> With the inverted L you might work the odd JA but
> not a load of Gs.
> 
> I have over the years used dipoles ranging from 33
> feet up to 60 feet plus and I wouldn't say there was
> a great difference in my scores.
> 
> If only I lived in Nottingham!!!
> 
> 73 de Jim G3RTE
> 
> 
> 
>  
> 
> ------------------------------
> 
> Message: 2
> Date: Tue, 3 Jan 2006 20:03:13 -0000
> From: "G4FNL" <g4fnl at bubloz.demon.co.uk>
> Subject: Re: [UK-CONTEST] FT1000Mp Mk V display
> To: "Uk-Contest at Contesting.Com"
> <uk-contest at contesting.com>
> Message-ID:
>
<DAELIBBFBIJKILHGEIHKAELCCBAA.g4fnl at bubloz.demon.co.uk>
> Content-Type: text/plain;	charset="us-ascii"
> 
> Dick et al
> 
> This link may help if you need a better explanation
> and possible fix (the
> problem also occurs on the standard FT1000MP:
>
http://mailman.qth.net/pipermail/1000mp/2002-August/003516.html
> 
> 73  Graham G4FNL
> 
> -----Original Message-----
> From: uk-contest-bounces at contesting.com
> [mailto:uk-contest-bounces at contesting.com]On Behalf
> Of Don Beattie
> Sent: 02 January 2006 08:10
> To: Richard Allisette; Uk-Contest at Contesting.Com
> Subject: Re: [UK-CONTEST] FT1000Mp Mk V display
> 
> 
> Dick,
> 
> As others have said, this is a common issue. I find
> that the longer the rig
> has been off (e.g. when we've been away on holiday)
> the longer the delay.
> Often turning it off and back on again speeds the
> process.
> 
> I understand it is a thermal fuse that causes the
> problem. Somewhere I have
> the mod that fixes the problem. 9M6CT sent it to me.
> If I can find it I'll
> send it to you. It involves removing (or bypassing -
> can't remember) one
> component on the display board. It may be available
> in the Yaesu reflector
> archives.
> 
> Happy New Year
> 
> 73
> 
> Don, G3BJ
> 
> 
> ----- Original Message -----
> From: "Richard Allisette" <rallisette at cwgsy.net>
> To: <uk-contest at contesting.com>
> Sent: Sunday, January 01, 2006 10:13 PM
> Subject: [UK-CONTEST] FT1000Mp Mk V display
> 
> 
> > Hi Chaps,
> >
> > I have had an FT1000MP MkV for about 18 months. In
> the last month or so
> > the front display has been taking a few seconds to
> light after switch on.
> > Today it took about 15 seconds.
> > I am a little worried that it might not come on at
> all.
> > Anyone else had this problem, or know what might
> cause it? Everything else
> > works fine.
> >
> > HNY to all reflectees.
> >
> > 73 Dick GU4CHY
> > _______________________________________________
> > UK-Contest mailing list
> > UK-Contest at contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/uk-contest
> >
> 
> _______________________________________________
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> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Tue, 03 Jan 2006 21:36:42 -0000
> From: "Dave Sergeant" <dave at davesergeant.com>
> Subject: Re: [UK-CONTEST] FT1000Mp Mk V display
> To: uk-contest at contesting.com
> Message-ID:
> <43BAEE6A.26520.22CF018 at dave.davesergeant.com>
> Content-Type: text/plain; charset=US-ASCII
> 
> On 3 Jan 2006 at 20:03, G4FNL wrote:
> 
> > Dick et al
> > 
> > This link may help if you need a better
> explanation and possible fix (the
> > problem also occurs on the standard FT1000MP:
> >
>
http://mailman.qth.net/pipermail/1000mp/2002-August/003516.html
> > 
> Reading this posting it seems there are probably two
> issues:
> 
> 1. Failure of the thermal fuse - probably because it
> is underrated 
> for the current rather than it exceeding its trigger
> temperature.
> 2. Failure of the dc/dc converter to produce the
> required volts for 
> the display. My gut feeling would be a duff
> electrolytic capacitor 
> inside this module, which would explain why it comes
> on eventually. 
> These displays will require two voltages - around
> -30Vish for the 
> cathode supplies and a few volts ac or dc to drive
> the heaters. If 
> the heaters are dc there is a fair chance that the
> smoothing cap for 
> 
=== message truncated ===



		
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