Date   

Re: Latest RadCom Plus

Neil Smith G4DBN
 

The whole point is that a (decent) epub reader reflows the text to fit your viewing window, and allows the reader to choose the way they want to view the source doc. PDF means you have to zoom in and out and mess about with scrolling and all that last-decade nonsense, giving the power over rendering to the author/publisher instead of the reader. Yuk.

Agreed, if users want to print the thing out, a preformatted PDF would be a courtesy, but then the publishers are being complicit in permitting piracy. At least if you copy/print an epub or onscreen render, you are committing a positive act of copyright violation against the publisher. Subject to fair use of course, but what's to stop anyone copying the PDF to a forum for access by nonmembers?. If the publisher presents the work on screen or as an epub, at least they force a pirate to do something more than just copy a file.

On my Win10 PC I tried a couple of free epub readers and some can't handle the DRM, but the(free) Sumatra reader recommended on the RSGB site makes a reasonable attempt at rendering, apart from Table 1, which is a fail of epic proportions. I haven't found a decent DRM-aware epub reader for Linux systems, Okular seems to have issues with the DRM signing. Coolreader is very Debian-centric and available via git, haven't tried it because, hey Debian? Ewwww. Anyone have a neat yum-installable RHEL/Centos epub reader that can handle DRM-signed Radcom Plus?

PDF readers are a splendid source of cyber attacks, one of the more horrible products of the last 20 years. Nearly as appalling as Flash...
epub is at least *reasonably* safe to use. And don't get me started on flaky browser plugins with all their rendering fails. Pfffft. Nice articles though.

Neil G4DBN


Re: Latest RadCom Plus

Andy G4JNT
 

Ah, this was on UKuWaves, not RSGBTech

So wasn't "reiterating"   
Send it anyway

Saw your image of how you see the online pub - with overlapped text.  There's something very seriously wrong with your PC setup.
Allthough either format may not be favourable to many, I haven't heard anyone else not actually being able to see it properly


'jnt


On 29 July 2016 at 18:45, Andy Talbot <andy.g4jnt@...> wrote:
Can I reiterate yet again, instead of just sounding-off here, why do you not send your comments to the editors - you may even end up with it printed in the Last Word.  

The board do follow this group and ReadCom office are aware of what goes on here, but sending your comments in directly does formalise things a lot more.

Andy  G4JNT



On 29 July 2016 at 18:36, 'Dr. David Kirkby (Kirkby Microwave Ltd)' drkirkby@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

On 29 July 2016 at 09:07, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:


Just in case you haven't seen it, the latest RadCom Plus has a comprehensive article on 10GHz by G0MGX, as well as one or two other excellent articles. :-)

Andy  G4JNT

Admittedly I run a somewhat unusual operating system on my main PC, but this is how your article renders:

http://www.kirkbymicrowave.co.uk/tmp/Screenshot-5.png

I have given up trying to use RadCom Plus. I don't know why the RSGB can't do what every other publisher of material does - put it in a PDF.

Instead, in the print edition, we are treated to yet another review of an antenna analyzer, where not a single known device is measured.  This time is has 11 colour photographs, showing the results when connected to various unknown impedances. Would it take a lot of effort to assemble a range of known impedances from 1% resistors and capacitors?

Anyway, the main thing is the photos look good, the author concludes it useful, and the advertiser is happy.

BTW, my radio club bought a RigExpert AA-600 antenna analyzer. Before connecting it to any electrical device, I checked the N connector, only to find the centre conductor is too far forward to meet the spec of an N connector.

http://www.dhars.org.uk/RigExpert-AA-600/Rig-Expert-AA-600s-N-connector-is-well-out-of-specification.jpg
http://www.dhars.org.uk/RigExpert-AA-600/RigExpert-AA-600-N-connector-fails-to-meet-spec-for-an-N-connector.jpg

With a bit of explanation of what is actually being measured, photos like that are far more revealing than endless photos of a device being reviewed while connected to lots of unknown impedances. With 1% resistors costing less than £0.01, and 1% capacitors only a few tens of pence, it should not be hard to assemble some known devices and measure those.

Dr. David Kirkby Ph.D CEng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT, UK.
Registered in England and Wales, company number 08914892.
http://www.kirkbymicrowave.co.uk/
Tel: 07910 441670 / +44 7910 441670 (0900 to 2100 GMT only please)




Re: Latest RadCom Plus

Andy G4JNT
 

Can I reiterate yet again, instead of just sounding-off here, why do you not send your comments to the editors - you may even end up with it printed in the Last Word.  

The board do follow this group and ReadCom office are aware of what goes on here, but sending your comments in directly does formalise things a lot more.

Andy  G4JNT



On 29 July 2016 at 18:36, 'Dr. David Kirkby (Kirkby Microwave Ltd)' drkirkby@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

On 29 July 2016 at 09:07, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:


Just in case you haven't seen it, the latest RadCom Plus has a comprehensive article on 10GHz by G0MGX, as well as one or two other excellent articles. :-)

Andy  G4JNT

Admittedly I run a somewhat unusual operating system on my main PC, but this is how your article renders:

http://www.kirkbymicrowave.co.uk/tmp/Screenshot-5.png

I have given up trying to use RadCom Plus. I don't know why the RSGB can't do what every other publisher of material does - put it in a PDF.

Instead, in the print edition, we are treated to yet another review of an antenna analyzer, where not a single known device is measured.  This time is has 11 colour photographs, showing the results when connected to various unknown impedances. Would it take a lot of effort to assemble a range of known impedances from 1% resistors and capacitors?

Anyway, the main thing is the photos look good, the author concludes it useful, and the advertiser is happy.

BTW, my radio club bought a RigExpert AA-600 antenna analyzer. Before connecting it to any electrical device, I checked the N connector, only to find the centre conductor is too far forward to meet the spec of an N connector.

http://www.dhars.org.uk/RigExpert-AA-600/Rig-Expert-AA-600s-N-connector-is-well-out-of-specification.jpg
http://www.dhars.org.uk/RigExpert-AA-600/RigExpert-AA-600-N-connector-fails-to-meet-spec-for-an-N-connector.jpg

With a bit of explanation of what is actually being measured, photos like that are far more revealing than endless photos of a device being reviewed while connected to lots of unknown impedances. With 1% resistors costing less than £0.01, and 1% capacitors only a few tens of pence, it should not be hard to assemble some known devices and measure those.

Dr. David Kirkby Ph.D CEng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT, UK.
Registered in England and Wales, company number 08914892.
http://www.kirkbymicrowave.co.uk/
Tel: 07910 441670 / +44 7910 441670 (0900 to 2100 GMT only please)



Re: Latest RadCom Plus

Dr. David Kirkby (Kirkby Microwave Ltd) <drkirkby@...>
 

On 29 July 2016 at 09:07, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:


Just in case you haven't seen it, the latest RadCom Plus has a comprehensive article on 10GHz by G0MGX, as well as one or two other excellent articles. :-)

Andy  G4JNT

Admittedly I run a somewhat unusual operating system on my main PC, but this is how your article renders:

http://www.kirkbymicrowave.co.uk/tmp/Screenshot-5.png

I have given up trying to use RadCom Plus. I don't know why the RSGB can't do what every other publisher of material does - put it in a PDF.

Instead, in the print edition, we are treated to yet another review of an antenna analyzer, where not a single known device is measured.  This time is has 11 colour photographs, showing the results when connected to various unknown impedances. Would it take a lot of effort to assemble a range of known impedances from 1% resistors and capacitors?

Anyway, the main thing is the photos look good, the author concludes it useful, and the advertiser is happy.

BTW, my radio club bought a RigExpert AA-600 antenna analyzer. Before connecting it to any electrical device, I checked the N connector, only to find the centre conductor is too far forward to meet the spec of an N connector.

http://www.dhars.org.uk/RigExpert-AA-600/Rig-Expert-AA-600s-N-connector-is-well-out-of-specification.jpg
http://www.dhars.org.uk/RigExpert-AA-600/RigExpert-AA-600-N-connector-fails-to-meet-spec-for-an-N-connector.jpg

With a bit of explanation of what is actually being measured, photos like that are far more revealing than endless photos of a device being reviewed while connected to lots of unknown impedances. With 1% resistors costing less than £0.01, and 1% capacitors only a few tens of pence, it should not be hard to assemble some known devices and measure those.

Dr. David Kirkby Ph.D CEng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT, UK.
Registered in England and Wales, company number 08914892.
http://www.kirkbymicrowave.co.uk/
Tel: 07910 441670 / +44 7910 441670 (0900 to 2100 GMT only please)


Crawley microwave round table program

Chris G0FDZ
 

Hi folks

The finalised program for the Crawley RT 2016 is now on-line on the UKuW Group website. I look forward to seeing you there.

Regards

Chris G0FDZ


Re: Latest RadCom Plus

Lawrence GJ3RAX <lawrence@...>
 

-----Original Message-----
From: Andy Talbot

Read online, print it using a PDF printer like FreePDF to make your file. Make sure you print using landscape
I use Chrome as my main browser under Windows 7. I could not get CutePDF to change to Landscape so I downloaded and tried FreePDF. It still gave me the same problems. I tried it in Internet Explorer and that was worse. Eventually I tried it in FireFox and that was fine. At last I now have a PDF version of it which is much easier to read. It would still have been easier to read if the format had been Portrait rather than Landscape.

Someone who is not actually reading it might think that Landscape looks better on our present wide screens as the whole page fits. By the time we have zoomed a bit in order to be able to read it rather than just looking at it I could see that Landscape is a very bad idea.

By the time I had got it to display as I wanted I had started to lose interest in the actual content. When I get enthusiastic again I will look more carefully at Andy's article on the Third Method for SSB although I would implement it with "real" wire ended components rather than surface mount. I admire Andy's expertise with surface mount devices but I assume his eyes are younger than mine and hopefully have not had the surgery that I have needed for cataracts and a detached retina. I am also interested in the article on the 10 GHz system. The one with the Arduino project looks worth considering although I have not tried any of those devices yet.

Obviously good and worthwhile articles by the authors and an excellent job by the editor. It is still poorly presented by the RSGB due to using options that are not ideal. If they would also give us a PDF option directly and the layout in Portrait, like RadCom, then I would be a lot happier.

73, Lawrence GJ3RAX


Re: Activity list for the UK Microwave Group 5.7Ghz and 10GHz Contest - Sunday 31st July

Martyn G3UKV
 

Call: G3ZME/P
Location: IO82QL (Brown Clee)
Bands: 5.7 and 10 GHz
Times: ~10:30-4:30 local
Talkback: 'KST or 144.175MHz SSB (preferred)

73 Martyn G3UKV

On 27/07/2016 11:50, G3XDY g3xdy@... [ukmicrowaves] wrote:

 

The next 5.7 and 10GHz event in the summer series of UKuG contests is
almost upon us.

Please send details of your planned operation (in the usual format
please) to arrive by 8pm on Friday 29th July, and I will put together a
consolidated list later on Friday evening. Hopefully the weather will be
kind for the portables.

73

John G3XDY
UKuG Contest Manager

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Re: Latest RadCom Plus

Andy G4JNT
 

You need the proper reading software for the ePub version. 'Jnt


On Friday, 29 July 2016, Andy Talbot <andy.g4jnt@...> wrote:
Read online, print it using a PDF printer like FreePDF to make your file. Make sure you print using landscape

On Friday, 29 July 2016, 'Michael Scott' g3lyp@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

HI Andy
 
I have skimmed through it online but so far haven’t been able to read the downloaded EPUB version. Acrobat Reader won’t open it and says it’s corrupted! Have you, or anyone else done it successfully? If so what is the best way?
 
73, Mike.
 
From: mailto:ukmicrowaves@...
Sent: Friday, July 29, 2016 9:07 AM
To: ukmicrowaves@...
Subject: [ukmicrowaves] Latest RadCom Plus
 
 

Just in case you haven't seen it, the latest RadCom Plus has a comprehensive article on 10GHz by G0MGX, as well as one or two other excellent articles. :-)
 
Andy  G4JNT
 


Re: Latest RadCom Plus

Andy G4JNT
 

Read online, print it using a PDF printer like FreePDF to make your file. Make sure you print using landscape

On Friday, 29 July 2016, 'Michael Scott' g3lyp@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

HI Andy
 
I have skimmed through it online but so far haven’t been able to read the downloaded EPUB version. Acrobat Reader won’t open it and says it’s corrupted! Have you, or anyone else done it successfully? If so what is the best way?
 
73, Mike.
 
Sent: Friday, July 29, 2016 9:07 AM
Subject: [ukmicrowaves] Latest RadCom Plus
 
 

Just in case you haven't seen it, the latest RadCom Plus has a comprehensive article on 10GHz by G0MGX, as well as one or two other excellent articles. :-)
 
Andy  G4JNT
 


Re: Latest RadCom Plus

Michael Scott
 

HI Andy
 
I have skimmed through it online but so far haven’t been able to read the downloaded EPUB version. Acrobat Reader won’t open it and says it’s corrupted! Have you, or anyone else done it successfully? If so what is the best way?
 
73, Mike.
 
Sent: Friday, July 29, 2016 9:07 AM
Subject: [ukmicrowaves] Latest RadCom Plus
 
 

Just in case you haven't seen it, the latest RadCom Plus has a comprehensive article on 10GHz by G0MGX, as well as one or two other excellent articles. :-)
 
Andy  G4JNT
 


Re: Dressing 0.25" Semi Rigid cable

Michael Scott
 

Hi Conrad
 
You can get small pipe cutters used by model engineers which are quite rigid and work better than those intended for plumbing work.
 
Mike
 
Sent: Thursday, July 28, 2016 2:03 PM
Subject: Re: [ukmicrowaves] Dressing 0.25" Semi Rigid cable
 
 

Hello Michael a standard B&Q (Gamma for our Dutch readers) pipe cutter has too much lateral play to actually cut with. I used to use them with Heliax. However for scoring a nice clean mark they are good enough. Thanks for the reminder.

Problem is that the 0.25" semi rigid that I am working with has a tinned braid outer not a solid copper jacket and as such is quite easy to deform.

Pipe cutters work great with solid copper outer semi - rigid because sufficient force can be applied to stop any lateral movement of the blade during rotation.

Maybe there is a high quality version of the cheap pipe cutters available.

I don't want to get it wrong too often as it's expensive.

Regards

Conrad PA5Y

On 28 July 2016 10:34:10 CEST, "'Michael Scott' g3lyp@... [ukmicrowaves]"
Hi Conrad
 
A tip which Paul Wade published in MUD a year or so back was to use a small pipe cutter. I have had mixed success with it as it tends to round the edge of the copper which makes removing the waste bit more difficult. With care you can make a dent round the copper and use this as a guide for a knife or fine saw.
 
73, Mike, G3LYP
 
Sent: Wednesday, July 27, 2016 10:39 PM
Subject: [ukmicrowaves] Dressing 0.25" Semi Rigid cable
 
 

Hello I have some N types to put on some PTFE based semi-rigid cable. It
has similar construction to RG402 and also has an FEP jacket. The
connectors are the correct ones from rf-microwave.com

The tinned braid outer is extremely tough and I need to make sure that I
can cut it very clean and square without any distortion. I suspect that
a very fine toothed saw of some type will be best.

Any advice?

Regards

Conrad PA5Y


Re: ATC Capacitors

David Warr <g4rqi@...>
 

Hello Keith

They may be unsuitable for another reason but i think http://www.enigma-shop.com/ stock the ATC values you require.

David

On 28 Jul 2016, at 23:52, "'Keith D. Le Boutillier' keithl@... [ukmicrowaves]" <ukmicrowaves@...> wrote:

 

Hi Group

 

Where is the best place to order ATC capacitors from?

I am looking for the following values

 

ATC600S 47Pf

ATC600S 8.2Pf

ATC100B 3.3Pf

 

Ideally would like to order all from one supplier as the sources I can find the postage is way more than the cost of the capacitors as none of them keep all of the ranges and values that I am looking for.

 

Thanks

 

73 Keith GU6EFB


Re: Dressing 0.25" Semi Rigid cable

mw1fgq
 

Hi
To strip semi rigid cable I use a pair of Ideal T-strippers such as:-

I grip the semi rigid at the top or smaller diameter end of the tool and rotate so the "teeth" cut into the outer, it doesn't wander and only takes one or two turns to cut into the screen sufficiently to allow me to flex and snap it cleanly. Cheap versions can be found in ordinary DIY shops but it doesn't seem to harm the tool anyway.
John
MW1FGQ


Re: This weekend's GHz band talks to be streamed live

Andy G4JNT
 

Trevor -
Was there a reason the talks programme was so late being published / arranged ?

Even a week ago your list looked so Tim Peake orientated I gave up.  Have now made other arrangements but would now have been interested in coming along.  I can't be the only one to think this way

Normally functions as mainstream as that event are organised months in advance

Andy  G4JNT

On 29 July 2016 at 09:34, M5AKA m5aka@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

For those unable to join us at Guildford this weekend there be live streaming of the presentations provided by volunteers from the British Amateur Television Club (BATC). 

The webstream will be available at this new location:

https://beta.batc.tv/live/amsatuk

The Live Stream will begin on Saturday morning, July 30 at 10:15 BST with the Official Opening by Professor Sir Martin Sweeting G3YJO.

The PDF Programme Schedule, Day-Pass Booking and Travel information are at


----



This weekend's GHz band talks to be streamed live

M5AKA
 

For those unable to join us at Guildford this weekend there be live streaming of the presentations provided by volunteers from the British Amateur Television Club (BATC). 

The webstream will be available at this new location:

https://beta.batc.tv/live/amsatuk

The Live Stream will begin on Saturday morning, July 30 at 10:15 BST with the Official Opening by Professor Sir Martin Sweeting G3YJO.

The PDF Programme Schedule, Day-Pass Booking and Travel information are at


----


Re: ATC Capacitors

SAM JEWELL
 

I believe RFElettronica are now on their summer hols...........back end of August.
Otherwise an excellent source of such bits, as many on here will testify.

73 de Sam, G4DDK


Sent from my DDKpad

g4ddk.com
g4ddk.blogspot.com

On 29 Jul 2016, at 00:23, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:

I've bought ATC caps from RF-Elettronica asnd Digikey recently Keith:

http://www.digikey.co.uk/product-search/en/capacitors/ceramic-capacitors/131083
and

http://www.rf-microwave.com/en/shop/0/143-porcelain-multilayer-high-q-capacitors-for-rf-high-power-microwave.html


Neil G4DBN



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Latest RadCom Plus

Andy G4JNT
 

Just in case you haven't seen it, the latest RadCom Plus has a comprehensive article on 10GHz by G0MGX, as well as one or two other excellent articles. :-)

Andy  G4JNT


GB3USK Frequency

Andy G4JNT
 

It does move around a bit.

This morning (now) it is running 158Hz BELOW nominal.  And I even saw a few Hz of change on the waterfall. S

In fact quite a lot of drift on the display

Line on the right is my synth at 1296.87000 dead
Broken one to the left of that  is GB3USK.  Each red tick on the left is 10 seconds


Andy  G4JNT


Re: ATC Capacitors

Neil Smith G4DBN
 


ATC Capacitors

Keith D. Le Boutillier <keithl@...>
 

Hi Group

 

Where is the best place to order ATC capacitors from?

I am looking for the following values

 

ATC600S 47Pf

ATC600S 8.2Pf

ATC100B 3.3Pf

 

Ideally would like to order all from one supplier as the sources I can find the postage is way more than the cost of the capacitors as none of them keep all of the ranges and values that I am looking for.

 

Thanks

 

73 Keith GU6EFB