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Re: Seen in latest scatterpoint
Hello Mike
I agree with the rule of thumb! Careful simulation does provide a way of
minimising inter-antenna degradation, though.
To put things in perspective, my 2/70/23 system occupied about 3.5m
Hello Mike
I agree with the rule of thumb! Careful simulation does provide a way of
minimising inter-antenna degradation, though.
To put things in perspective, my 2/70/23 system occupied about 3.5m
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By
Christopher Bartram <cbartram@...>
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#25966
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Re: Seen in latest scatterpoint
I think there is a rule of thumb - which is don't. Unless of course you have to and then as far apart as possible.
I did manage to stack antennas for 6m up to 13cm in about 6ft of vertical space but
I think there is a rule of thumb - which is don't. Unless of course you have to and then as far apart as possible.
I did manage to stack antennas for 6m up to 13cm in about 6ft of vertical space but
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By
mike.willis@...
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#25965
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GB3CSB off for upgrade
Hi All,
Just to let you know, I have taken GB3CSB off the air today.
This is to add 13cm and 9cm, along with a new PA for 23cm.
Some preparation will also be made in anticipation of some other bands
Hi All,
Just to let you know, I have taken GB3CSB off the air today.
This is to add 13cm and 9cm, along with a new PA for 23cm.
Some preparation will also be made in anticipation of some other bands
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By
David GM6BIG <freevil@...>
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#25963
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Re: Seen in latest scatterpoint
try emailing Kent at: wa5vjb@...
try emailing Kent at: wa5vjb@...
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By
Peter Day <microwaves@...>
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#25962
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Re: Scatterpoint Nov-Dec 2010 edition
Hi David...
I've just checked and it works for me provided I type it into the box on the browser. However if you copy and paste from the Scatterpoint pdf file it apparently puts a space after group/
Hi David...
I've just checked and it works for me provided I type it into the box on the browser. However if you copy and paste from the Scatterpoint pdf file it apparently puts a space after group/
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By
Peter Day <microwaves@...>
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#25961
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Re: Seen in latest scatterpoint
Hello Dom
I don't see Scatterpoint at the moment, and unfortunately I wasn't able to get
to Martlesham, but I looked fairly thoroughly into the problems of stacking my
own antennas for 2/70/23 a
Hello Dom
I don't see Scatterpoint at the moment, and unfortunately I wasn't able to get
to Martlesham, but I looked fairly thoroughly into the problems of stacking my
own antennas for 2/70/23 a
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By
Christopher Bartram <cbartram@...>
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#25964
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Seen in latest scatterpoint
Hello
---------------------------------------snip------------------------------------------------------------------------------------------------------------------------------------------------------
Hello
---------------------------------------snip------------------------------------------------------------------------------------------------------------------------------------------------------
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By
F6DRO
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#25960
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Re: Scatterpoint Nov-Dec 2010 edition
It works here, David.
G4HJW
David Jones wrote:
It works here, David.
G4HJW
David Jones wrote:
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By
bernie <bernie@...>
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#25959
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Re: Scatterpoint Nov-Dec 2010 edition
I've tried to get into the Scatterpoint Yahoo site, but Yahoo says
Scatterpoint does not exist.
Can somebody post me a url please? The one from the latest scatterpoint
does not work.
Thank
I've tried to get into the Scatterpoint Yahoo site, but Yahoo says
Scatterpoint does not exist.
Can somebody post me a url please? The one from the latest scatterpoint
does not work.
Thank
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By
David Jones <david.g6feo@...>
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#25958
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Re: making printed circuit boards H2O2
Many thanks for the info David.
Mike
Many thanks for the info David.
Mike
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By
Michael Scott
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#25957
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Re: Monday night activity
In fact the moon must be much more reliable and predictable than the F
layers ... no problem with "moonspots" affecting propagation :-)
Peter
In fact the moon must be much more reliable and predictable than the F
layers ... no problem with "moonspots" affecting propagation :-)
Peter
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By
Peter Day <microwaves@...>
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#25955
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Re: Monday night activity
Well I once worked VP8GQ in Antarctica on 160 metres with 7 watts out to
a 270 ft end fed wire bent five times around my parent's garden and no
higher than 40 feet at the best... on CW of course :-) I
Well I once worked VP8GQ in Antarctica on 160 metres with 7 watts out to
a 270 ft end fed wire bent five times around my parent's garden and no
higher than 40 feet at the best... on CW of course :-) I
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By
Peter Day <microwaves@...>
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#25956
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Scatterpoint Nov-Dec 2010 edition
To all paid up members of the UK Microwave Group..
The latest edition of our newsletter Scatterpoint has been just emailed to those on the email lists and also uploaded to the Scatterpoint Yahoo
To all paid up members of the UK Microwave Group..
The latest edition of our newsletter Scatterpoint has been just emailed to those on the email lists and also uploaded to the Scatterpoint Yahoo
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By
Peter Day <microwaves@...>
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#25954
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Re: making printed circuit boards H2O2
On 08/12/2010 19:11, g0mrf@... wrote: Hi guys, I suggest 220g/l ammonium peroxydisulphate ... (NH4)2S2O8 ... @ 40-50C as the preferred etchant. Much cleaner than ferric chloride and you
On 08/12/2010 19:11, g0mrf@... wrote: Hi guys, I suggest 220g/l ammonium peroxydisulphate ... (NH4)2S2O8 ... @ 40-50C as the preferred etchant. Much cleaner than ferric chloride and you
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By
Russ Stewart <g4pbp@...>
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#25953
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Re: Making printed circuit boards
There is a good group on making you ownPCBs.
See, http://tech.groups.yahoo.com/group/Homebrew_PCBs/
Derward Myrick KD5WWI
There is a good group on making you ownPCBs.
See, http://tech.groups.yahoo.com/group/Homebrew_PCBs/
Derward Myrick KD5WWI
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By
Derward Myrick <wdmyrick@...>
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#25951
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making printed circuit boards H2O2
In a message dated 08/12/2010 10:08:51 GMT Standard Time,g3lyp@... writes:
Hello Mike.
Sorry the message was lost.
I did a reply for Andy giving the proportions as best I can remember, butthe H2O2
In a message dated 08/12/2010 10:08:51 GMT Standard Time,g3lyp@... writes:
Hello Mike.
Sorry the message was lost.
I did a reply for Andy giving the proportions as best I can remember, butthe H2O2
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By
g0mrf@...
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#25952
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Re: Making printed circuit boards
Andy Talbot <andy.g4jnt@...> wrote:
I would not recommend that method of tinning if you have to place a
legless type SM device , QFP, as you can't get a even thickness and the
IC will not sit
Andy Talbot <andy.g4jnt@...> wrote:
I would not recommend that method of tinning if you have to place a
legless type SM device , QFP, as you can't get a even thickness and the
IC will not sit
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By
richard <richard.bown@...>
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#25950
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Making printed circuit boards
There seem to be several detractors of the press-n-peel transfer technique. The two photographs linked here are examples of what can be done with "press-n-peel blue" when small compact PCBs are
There seem to be several detractors of the press-n-peel transfer technique. The two photographs linked here are examples of what can be done with "press-n-peel blue" when small compact PCBs are
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By
Andy G4JNT
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#25949
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Re: making printed circuit boards
HCl very easily. Most hardware stores sell it as a drain cleaner / limescale remover. I was surprised, but have seen it in many places. And in the nearly fully concenrated fuming variety. Look for
HCl very easily. Most hardware stores sell it as a drain cleaner / limescale remover. I was surprised, but have seen it in many places. And in the nearly fully concenrated fuming variety. Look for
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By
Andy G4JNT
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#25948
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Re: making printed circuit boards
Hi Andy
Yes, worth trying but can ordinary people get HCl and H2O2 easily?
David
From: Andy Talbot
To: ukmicrowaves@...
Sent: Wednesday, 8 December, 2010 11:33:32
Subject: Re: [ukmicrowaves] Re:
Hi Andy
Yes, worth trying but can ordinary people get HCl and H2O2 easily?
David
From: Andy Talbot
To: ukmicrowaves@...
Sent: Wednesday, 8 December, 2010 11:33:32
Subject: Re: [ukmicrowaves] Re:
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By
Dave
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#25947
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