Date   

Re: F1PSR connector at 3cms

Eene de Weerd <pa3ceg@...>
 

Hello Conrad,

Take a look at http://users.skynet.be/on4cdu/publications/Measur.pdf

Best 73’ Eene


Van: ukmicrowaves@... [mailto:ukmicrowaves@...] Namens G0RUZ_Conrad
Verzonden: woensdag 2 november 2005 23:56
Aan: ukmicrowaves@...
Onderwerp: [ukmicrowaves] F1PSR connector at 3cms

 

There is a guy on moon net asking if anyone knows the loss through an
Andrews F1PSR right angle sma connector at 3cms. I only have info to 2.2 GHz
for it, anyone know or prepared to make an educated guess?

73

Conrad G0RUZ




F1PSR connector at 3cms

G0RUZ_Conrad <conrad@...>
 

There is a guy on moon net asking if anyone knows the loss through an
Andrews F1PSR right angle sma connector at 3cms. I only have info to 2.2 GHz
for it, anyone know or prepared to make an educated guess?

73

Conrad G0RUZ


6cm contact to EI

Ralph
 

Could anyone on the reflector tell me if I am or am not the first
English station to work EI? on 6cm.
On the 24th Sept 2005 I worked EI/F6DPH/P on 5760.100Mhz
at 0927-0937utc on SSB.

On the negative side the 6cm rx went down today 2nd Nov. Fault
on the mast and weather too poor to rectify. So off-air on 6cm
until further notice.
73
Ralph
G4ALY


Re: TWT Power Supplies

Brian Flynn GM8BJF
 

Chris Bartram wrote:
I now have a big TWT for 10GHz EME system sitting in the shack, looking at me
with a big square cynical smile on its WG output, saying 'Now feed me with
lots of volts and milliamps.'
Before I embark on the tortuous process of building yet another bigger TWT
PSU, it occurs to me that somebody, somewhere, may have a suitable PSU
without a tube that they'd like to turn into cash. The requirements are
Vhelix = 9kV at <20mA, Vcollector = 4.5kV at >350mA, and Vheater = 6.3V at
>1.8A.
The tube was apparently used in a Varian 6900 series TWTA, and one of these
with a zapped tube would be ideal, although I guess that's a really long
shot!
73
Chris
GW4DGU
SPONSORED LINKS
Hobby and craft supply <http://groups.yahoo.com/gads?t=ms&k=Hobby+and+craft+supply&w1=Hobby+and+craft+supply&w2=Craft+hobby&w3=Hobbies+and+crafts&w4=Ham+radio&c=4&s=84&.sig=Sz5ebNg-ZsVyHTzaR4PnAg> Craft hobby <http://groups.yahoo.com/gads?t=ms&k=Craft+hobby&w1=Hobby+and+craft+supply&w2=Craft+hobby&w3=Hobbies+and+crafts&w4=Ham+radio&c=4&s=84&.sig=_8V4kQCK4PEN_MzUUBx-hQ> Hobbies and crafts <http://groups.yahoo.com/gads?t=ms&k=Hobbies+and+crafts&w1=Hobby+and+craft+supply&w2=Craft+hobby&w3=Hobbies+and+crafts&w4=Ham+radio&c=4&s=84&.sig=J-__6L1W_lZQ58dekNdHLA> Ham radio <http://groups.yahoo.com/gads?t=ms&k=Ham+radio&w1=Hobby+and+craft+supply&w2=Craft+hobby&w3=Hobbies+and+crafts&w4=Ham+radio&c=4&s=84&.sig=OzrEr-gq6h7guAFs73WsoQ> ------------------------------------------------------------------------
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* Visit your group "ukmicrowaves
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Service <http://docs.yahoo.com/info/terms/>.
Hmm that sounds loud!

73s

Brian
GM8BJF

--
Dr Brian Flynn GM8BJF
15 Riselaw Crescent
Edinburgh EH10 6HN

Tel/fax 0131 447 4043

Email (Work) Brian.Flynn@ed.ac.uk


Re: PC BOards for W1GHZ projects

Peter Day <microwaves@...>
 

Full deatisl of vboards, proices and PayPal mehtod are shown below..

The above is roughly translated into English as:

"Full details of boards, prices and PayPal method are shown below ..."



please excuse my earlier digit trouble!

Peter, G3PHO


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TWT Power Supplies

Chris Bartram <yahoo@...>
 

I now have a big TWT for 10GHz EME system sitting in the shack, looking at me
with a big square cynical smile on its WG output, saying 'Now feed me with
lots of volts and milliamps.'

Before I embark on the tortuous process of building yet another bigger TWT
PSU, it occurs to me that somebody, somewhere, may have a suitable PSU
without a tube that they'd like to turn into cash. The requirements are
Vhelix = 9kV at <20mA, Vcollector = 4.5kV at >350mA, and Vheater = 6.3V at
1.8A.
The tube was apparently used in a Varian 6900 series TWTA, and one of these
with a zapped tube would be ideal, although I guess that's a really long
shot!

73

Chris
GW4DGU


Re: PC BOards for W1GHZ projects

Peter Day <peter@...>
 

mikeg3pfr@aol.com wrote:
In a message dated 01/11/2005 17:40:24 GMT Standard Time, microwaves@blueyonder.co.uk writes:
Full deatisl of vboards, proices and PayPal mehtod are shown below..
????? - Finger troubles? :-)
Just had a glass or two!!

Peter


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Re: PC BOards for W1GHZ projects

mikeg3pfr@...
 

good on yer!
 
M


PC BOards for W1GHZ projects

Peter Day <microwaves@...>
 

Hello UKuG members..

Paul Wade, W1GHZ, has put a number of his projects online at the URL shown below. He's just told me that he has a few boards left over from MUD 2005 and these will be available at the Martlesham Microwave Round Table held in the UK on Nov 12/13. Dave, WW2R will be bring the boards to the meeting. If anyone would like a board or two and is willing to pay Paul before Martlesham by PayPal then those people will get first choice!

Full deatisl of vboards, proices and PayPal mehtod are shown below..

Ignore shipping costs as you will be collecting the boards at Martleshamn!

73

Peter, G3PHO

For the UK Microwave Group

--------------------------------------------------------------------

PC Board Price List for W1GHZ small projects
see http://www.w1ghz.org/small_proj/small_proj.htm

Quantity
--------
____ Antenna Ratiometer or Handheld Network Analyzer $8

____ LED Bargraph indicator - used with above $4

____ Fan controller - speed proportional to temperature $4

____ Tonemeter - audio tone proportional to voltage $5

____ Lossless Current Monitor $6

____ Single-LED Battery Voltage Monitor $2

____ Utility board for Op-amps and Comparators $2.50

____ Simple, yet "Fool-Resistant" Sequencer -- two for $10
(two boards on a panel, uncut)

____ 222 MHz Transverter for the FT-817 (or SDR-1000) $11

--------- ----------
TOTALS $

Discounts:
Three or more boards total, $0.25 per board
Ten or more boards total, $0.50 per board - $

Shipping:

US & Canada $1 per order for 4 or fewer boards, $
free for 5 or more

Overseas $3 per order for 4 or fewer boards, $
$2 for 5 or more
---------
TOTAL $

Send check and mailing label to:
Paul Wade
161 Center Road
Shirley, MA 01464

or Paypal account wade@bicnet.net then email copy to w1ghz@arrl.net



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Re: PC BOards for W1GHZ projects

mikeg3pfr@...
 

In a message dated 01/11/2005 17:40:24 GMT Standard Time, microwaves@... writes:
Full deatisl of vboards, proices and PayPal mehtod are shown below..
????? - Finger troubles? :-)
 
Mike G3PFR
 
 


Re: 5.7GHz/10GHz Cumulative Entries

Peter Day <peter@...>
 

g4knz wrote:
So far I have received the following 8 entries for the 2005 5.7GHz & 10GHz cumulative contests:
M0GHZ, G0UPU, G1MPW, G3JMY, G3ZME, G4EAT, G4ZXO, G8KQW
I'm sure there should be some more, ... I was travelling all last week, so apologies to a couple of you who wondered if your email was received - I only had a slow link and only downloaded very small emails.
73
Steve G4KNZ.
Closing date is Tuesday next week I believe Steve...mine will be with you soon..

Peter, G3PHO



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SSETI Express Power situation

Trevor M5AKA <TrevorM5aka@...>
 


Re: Certificates, records and firsts...

Peter Day <peter@...>
 

Chris Bartram wrote:
Having never, in nearly 35years, claimed an operating certificate of any kind, (apart from a few contest winner certificates when I was young and foolish...) I guess that I'm not really qualified to comment on the certificates issue! But, the idea of UKuG becoming the IARU Region 1 franchised repository of UK microwave records and 'firsts' is something I'd support wholeheartedly.

I already try to keep a list of uW records on my website Chris. It's reasonably accurate but, as with beacon lists, it is totally dependent on accurate info being sent to me in the first place. Maybe my lists could be put on the UKuG website to give them (and UKuG) a little more authority ...

Regarding "firsts"... I'd dearly love to have such info as I'm laying claim to the first 6cm contacts with both GI and EI!

I also have the honour of being joint holder of the first 3cm ssb qso across Sheffield :-)

regards,

Peter, G3PHO

www.g3pho.org.uk




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Re: RSGB Awards

Peter Day <peter@...>
 

Martyn Kinder wrote:

Perhaps its time for UKuG Microwave awards.
Any suggestions what they should be awarded for? Distance? Squares? Activating rare squares? Peaks on the air? EME awards?
How about worked 10 squares without KST :-0 :-)


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Re: Visit to HB9Q photos

Peter Day <peter@...>
 

G0RUZ Conrad wrote:
I have added some photos to my website www.g0ruz.com of my visit to HB9Q,
there are photos of the huge dish and feed arrangement which may be of
interest to some of you.
Fabulous Conrad! It pouts my 4ft tripod system into perspective!

May I use some of the piccies in Scatterpoint ?



73
Peter, G3PHO



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UKmg notes on cd

m0els <m0els@...>
 

I think this would be a good idea, if we could get a good selection of
various microwave related projects to-gether, incl circuit diagrams
and pcb layouts. We already have a newsletter which I dont think
people would be willing to pay for. What I would like to see is
something similar to the rsgb technical topics books dedicated to
microwave. These would be a worthwile project to boost our income.

73
John


Re: Getting the message over...

Peter Day <peter@...>
 

Kinder Martyn wrote:

Regarding the archive. I am not sure that there is any real benefit to
having an (old) archive. We know that the e-mailed version of
Scatterpoint is already shared because people on this reflector have
made references to it when they are not members of the UKuG. The
microwave community (worldwide or UK) is not huge and therefore the
readership of SP is already higher than the membership numbers (about
300). And I have to say that I think that is excellent. The more the
better.
I agree that it is good the microwave gospel is being spread around but I'd be happier if the freeloaders would commit themselves and join the UK Microwave Group. When we first put out the "new Scatterpoint" last year the committee did agree there would be no freebies! That's why copies dont go to the various National Societies around the world any longer (the old Microwave Newsletter went to them for nothing).

.
FWIW, I think (my personal view not the UKuG secretary view [which is
subject to democratic restraints]) that SP (as a download) should be
freely available to anyone at anytime.

I think UKuG membership numbers would plummet if the newsletter were free to all comers.... especially the overseas membership numbers.

What we
need are clear differentiators, so that joining the UKuG had additional
benefits and is seen for what it is as the representative body of the UK
Microwavers rather than just supporting it because they get 10 copies of
SP per year. That would be the real difference between what the UKuG is
and what the RSGB has become.
I agree totally!
73

Peter, G3PHO





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Re: UKuG Publishing Co. Ltd

Peter Day <peter@...>
 

g4knz wrote:


We could instead have made the PDF files available, either on CD, or via a web-site, and certainly the cost would be lower.
But we would have made a charge wouldn't we?
Some people do like to have a printed document, and maybe also there is sometimes the perception that with printed proceedings, we have produced something more worthy (or maybe that is an outdated and vain view nowadays?).
I agree ... I prefer paper!
Once the material is available electronically, it is probably impossible to control it, in so much it will get copied around, at least if there is any charge to download it.
Agreed ...

Possibly that doesn't
matter, if we are not intending it to be a source of revenue.
Microwave Update Proceedings cost around $20 and are not in PDF format. In a small way they probably help finance the Update convention as well as disseminate information (Kent Britain might be able to fill us in on this). If the UKuG wishes to put on a mini-Update over here it would need all the income it could find. Already there are some overhead costs being incurred with the forthcoming Martlesham meeting so a bigger affair would involve meaningful expenses. Things done on a shoe string budget can often look shoddy and people wont come back next time,


We are discussing generating proceedings perhaps for spring 2006, so comments on the method of delivery would be timely and welcome.
We could provide a printed one and a CD version (at lower cost). That would be no problem as the origainl PDF thast goesd to the printer is already on CD. We'd need some means of bulk copying it and having a nice label printed on it (not one of those sticky labels which tend to give trouble later!). I personally would like to spend hours copying over a hundred CDs!

73

Peter. G3PHO



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Re: UKuG Publishing Co. Ltd

Peter Day <peter@...>
 

Hi folks,

Excuse my late replies on this important topic but I've been away all weekend and got back last night to find several hundred emails awaiting attention..

Chris Bartram wrote:
I completely agree with the idea of UKuG publishing guides and past article collections, but I wonder if it's really necessary to publish these on paper.
On one hand I agree with Chris about having stuff in PDF format but then again I like having books, pamphlets and newsletters I can read in the lounge instead of having to sit down here in the shack in front of the squared eyed monster! It's also nice to have something to open out on the workbench. That said, there's no doubt that archiving in PDF is a massive physical space saver.


I haven't investigated the possibilities at all deeply, but it seems to me that a simple electronic commerce system allowing people to pay per download of documents produced in .PDF format would cost less to put together than the print-run for a single publication...

I would not agree to having an internet resource where anyone can access UKuG material, unless they were a member of UKuG. Other specialist groups operate a members only section (eg BATC)in addition to an all comers one and I think this is needed to give the Group concerned (a) some prestige (respec' in street language!) and (b) to encourage people to join the group. If I were to independently produce Scatterpoint as an electronic newsletter, available to anyone for free, I would eventually pack it in as it's a lot of effort for no reward. The reward I get from doing it through UKuG is obviously not a financial one (I get no fee of course!) but is from knowing that it puts UKuG on the map and helps gives the Group an identity. A bonus for me is that after 20+ years of editing I now have a large network of microwave contacts around the world.

The fact that it is the Group's newsletter is the incentive for me to put myself into gear each month to see it through. I don't think I would be motivated enough if it were not the case.... I can't even keep my own website updated on monthly basis like I used to! I had the same view when I edited the RSGB Microwave Newsletter (which became Scatterpoint) ... I did it as my contribution towards the Microwave Committee's work in promoting microwaves in the UK..

I receive newsletters from other microwave groups on a "swap" or exchange basis... eg North Texas Microwave Society, Packrats, San Bernardino Microwave Society and in each case I believe these are for members only, although older copies of the SBMS ones are available on one or two websites for anyone to download.

If the UKuG is to offer various services to its members it needs to generate a little income. Newsletters, books and the like can do that and hopefully fund microwave meetings and projects in the future such as support for beacons, stands at various rallies and exhibitions, information packs, pcbs, kitsets and component services. Such things need money up front, even if they are eventually sold at cost, as in the case of the UKuG Proceedings 2005.

Giving stuff away free, while a laudable concept in the cause of advancing amateur microwaves, could be self-defeating in the long run. That's my own view, not the committee's.

We need the members of UKuG to tell us how they want things being done... if they want free access to Scatterpoint for everyone, member or not, then will they still remain a member of the group? Would they still regard membership as being advantageous? It's a little like trying to justify RSGB membership without RadCom... what else do I get out of it? :-) :^)

By the way, the membership fee for the UKuG is not a subscription to Scatterpoint. It's for being a member of what is becoming a valuable special interest group. The PDF newsletter is supplied FREE to members. Those who want a paper copy pay (if you are in the UK) £6 extra. I personally think making Scatterpoint free to anyone, anywhere, would degrade its status in the eyes of UKuG members.


73

Peter, G3PHO

Scatterpoint Editor




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Frequency Range...

Chris Bartram <yahoo@...>
 

I'm not terribly interested in 471THz operation, despite having a very nice
250mm antenna for that band, but am I the only person here who's trying to
figure-out how to generate coherent energy in the 0.5 - 10THz band?

Perhaps we could redefine UKuG to include amateur experimentation and
communications on all frequencies above UHF...

73

Chris
GW4DGU