Date   

Re: 24/47/76GHz Cumulatives Sunday 3 May

Brian Flynn GM8BJF
 

--- In ukmicrowaves@..., Peter Day <microwaves@...> wrote:

Is anyone planning to be on for this contest? I don't want to go out /P
if there is no one to work, within a reasonable range :-)

I will go to MERRYTON LOW IO93AD51 to start with (by 0900z) but will
move to Alport IO93FB44 and other suitable sites if activity warrants it.

Details:

G3PHO/P: IO93AD, IO93FB, etc
24GHz: 2W output 60cm odffest dish
47GHz: 22mW CW/FM. 35cm offset dish
Talkback: 144.175MHz ssb 50W 9 ele yagi
KST: Vodaphone broadband mobile
Peter,

I will be near Gatehouse at 1075WV with 10 and 24 GHz. Runnin 1Watt on both bands.

73s
Brian, GM8BJF.


Re: Portable bits for sale

Ted Agar <Tedagar@...>
 

Afternoon Conrad,
                           Yes Please on the 23& 13cm antennas if they are still available.
73
Ted Agar
G8AZA


E-book Readers

Christopher Bartram <cbartram@...>
 

This might be of interest to anyone contemplating buying a book reader...

<http://www.spectrum.ieee.org/apr09/8567>

Vy 73

Chris
GW4DGU


Re: OT: Anyone out there used a 'Kindle'?

Christopher Bartram <cbartram@...>
 

David wrote:

I'm now looking at the Sony one.....
Which handles PDF's IIRC. It's on my fantasy Christmas present list!

However, it seems to me that electronic books have a couple of intrinsic
problems. Firstly, they are only really useful away from a computer. Perhaps
it's me, but when I read text books I often have two or three open, so that I
can cross-refer.

Also, E-books suffer from a similar problem to the real thing: they are too
small and easily left on public transport etc. I don't really mind loosing a
ten quid paperback, but I'd start to grieve if I left a UKP200 e-book on the
train!

Given current prices, I wonder if a netbook mightn't be a better solution...

Enough displacement activity - back to the VAT!

Vy 73

Chris
GW4DGU


Re: OT: Anyone out there used a 'Kindle'?

David Wrigley <zen130696@...>
 

Hi Joe

I've also been looking at that.

My concern with the Kindle is that the transfer mechanism isn't under our control- you have to email Amazon to get pdf's transferred.

I'm now looking at the Sony one.....

David G6GXK


Joe McElvenney wrote:

Hi,
I've got a pile of textbooks in pdf format and it would be lovely
to have them in a convenient form such as on an Amazon 'Kindle' or
perhaps the Sony equivalent. The question is, how well do these
things handle schematics, graphics or maths? What are they like to
use in general; as touchy-feely as a paperback?
Of course they are way over-priced but Christmas is only eight
months away. A time when I can buy myself a present without
feeling guilty should folks say, "That's nice. How much was it?".
"Two hundred quid! You must have more money than sense", - a
sentiment I can't generally argue with. The lack of sense, that
is, but not the surfeit of money part.
Cheers - Joe G3LLV


Re: Portable bits for sale

Conrad G0RUZ <conrad@...>
 

All sold thanks

Conrad

Conrad G0RUZ wrote:

I have the following for sale which would be good additions to anyone thinking of portable operation. I will split but anyone who is prepared to meet to pick this stuff up is getting a bargain.

Tonna 55 ele for 23 cms - assembled used twice - 35
Tonna 35 ele for 13 cms - assembled used twice - 25
Tonna 9 element portable for 2m brand new - 55
Waeco PerfectPower DCDC20, 20 A, 12 volts 24 volts converter 30 - this allows 24V operation portable ( good for 13cms surplus PAs) and will charge both batteries when the engine is running - used twice 35
2 x maintenance free batteries used twice the whole system will run 3-400W in a contest type scenario - the batteries have been maintained and are 12 months old 25 each
Portable tripod type aluminium mast 6m with rotary guy ring and waterproof compass rose used twice 40

240 separate 200 for the lot and I'll throw in some coax and big butch DC leads and power pole connectors- collection only - we can meet up to 50 miles or so radius

Conrad



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

Yahoo! Groups Links




OT: Anyone out there used a 'Kindle'?

Joe McElvenney <ximac@...>
 

Hi,

I've got a pile of textbooks in pdf format and it would be lovely
to have them in a convenient form such as on an Amazon 'Kindle' or
perhaps the Sony equivalent. The question is, how well do these
things handle schematics, graphics or maths? What are they like to
use in general; as touchy-feely as a paperback?

Of course they are way over-priced but Christmas is only eight
months away. A time when I can buy myself a present without
feeling guilty should folks say, "That's nice. How much was it?".
"Two hundred quid! You must have more money than sense", - a
sentiment I can't generally argue with. The lack of sense, that
is, but not the surfeit of money part.


Cheers - Joe G3LLV


Re: Nice 32GHz DX finally! (only a one-way though)

SAM JEWELL
 

Congratulations , Paul.
DX by any definition.

Good to see you at RAL last Sunday.



73 de Sam



Not sent from my PC!

On 29 Apr 2009, at 23:18, "pjm" <pauljmarsh@...> wrote:

Evening all,

Tonite I completed a 1-way with the Kepler space craft which is tx'ing on 32166.172MHz. It was located 3226045 Miles away from me, not bad DX!!

I've uploaded some info to http://www.uhf-satcom.com/amateurdsn/kepler/ with a couple of screen shots of the signal in FFT. It was a reasonable copy at 10dB over the noise.

regards,

Paul M0EYT.



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

Yahoo! Groups Links


Re: More bits for sale

Conrad G0RUZ <conrad@...>
 

Not sent from my PC either and that's my excuse :-)

Sam wrote:

Cheek!



Not sent from my PC!


On 30 Apr 2009, at 08:18, Conrad G0RUZ <conrad@...> wrote:

Ahhhhhh I did a Jewell of a Bartram!

Conrad

Conrad G0RUZ wrote:
Rich sorry for the delay due to work madness but I won't get the coupler posted until tomorrow. Really sorry about the delay but I am working away from home.

Conrad

G8ZHA wrote:

Conrad,

Has the Narda coupler gone yet?

NARDA 3045C-10 7-12.4 GHz -10dB directional coupler


Regards, Rich G8ZHA









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

Yahoo! Groups Links






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

Yahoo! Groups Links






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

Yahoo! Groups Links




Portable bits for sale

Conrad G0RUZ <conrad@...>
 

I have the following for sale which would be good additions to anyone thinking of portable operation. I will split but anyone who is prepared to meet to pick this stuff up is getting a bargain.

Tonna 55 ele for 23 cms - assembled used twice - 35
Tonna 35 ele for 13 cms - assembled used twice - 25
Tonna 9 element portable for 2m brand new - 55
Waeco PerfectPower DCDC20, 20 A, 12 volts 24 volts converter 30 - this allows 24V operation portable ( good for 13cms surplus PAs) and will charge both batteries when the engine is running - used twice 35
2 x maintenance free batteries used twice the whole system will run 3-400W in a contest type scenario - the batteries have been maintained and are 12 months old 25 each
Portable tripod type aluminium mast 6m with rotary guy ring and waterproof compass rose used twice 40

240 separate 200 for the lot and I'll throw in some coax and big butch DC leads and power pole connectors- collection only - we can meet up to 50 miles or so radius

Conrad


Re: More bits for sale

SAM JEWELL
 

Cheek!



Not sent from my PC!

On 30 Apr 2009, at 08:18, Conrad G0RUZ <conrad@...> wrote:

Ahhhhhh I did a Jewell of a Bartram!

Conrad

Conrad G0RUZ wrote:
Rich sorry for the delay due to work madness but I won't get the coupler
posted until tomorrow. Really sorry about the delay but I am working
away from home.

Conrad

G8ZHA wrote:

Conrad,

Has the Narda coupler gone yet?

NARDA 3045C-10 7-12.4 GHz -10dB directional coupler


Regards, Rich G8ZHA









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

Yahoo! Groups Links






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

Yahoo! Groups Links


Re: More bits for sale

Conrad G0RUZ <conrad@...>
 

Ahhhhhh I did a Jewell of a Bartram!

Conrad

Conrad G0RUZ wrote:

Rich sorry for the delay due to work madness but I won't get the coupler posted until tomorrow. Really sorry about the delay but I am working away from home.

Conrad

G8ZHA wrote:

Conrad,
Has the Narda coupler gone yet?
NARDA 3045C-10 7-12.4 GHz -10dB directional coupler
Regards, Rich G8ZHA





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

Yahoo! Groups Links




Re: More bits for sale

Conrad G0RUZ <conrad@...>
 

Rich sorry for the delay due to work madness but I won't get the coupler posted until tomorrow. Really sorry about the delay but I am working away from home.

Conrad

G8ZHA wrote:



Conrad,
Has the Narda coupler gone yet?
NARDA 3045C-10 7-12.4 GHz -10dB directional coupler
Regards, Rich G8ZHA




Nice 32GHz DX finally! (only a one-way though)

pjm <pauljmarsh@...>
 

Evening all,

Tonite I completed a 1-way with the Kepler space craft which is tx'ing on 32166.172MHz. It was located 3226045 Miles away from me, not bad DX!!

I've uploaded some info to http://www.uhf-satcom.com/amateurdsn/kepler/ with a couple of screen shots of the signal in FFT. It was a reasonable copy at 10dB over the noise.

regards,

Paul M0EYT.


Re: Desynn sender??

joao caria <ct1fgw@...>
 

HI Alan
 
I know them well, unfortunately only have the meters. The old SIMRAD sonars used them, the hull unit had the pot linked to the transducer shaft. Most of those sonars must have been removed (series SR, SL, SK) if you have any contacts in the fishing industry you may be lucky.
 
Best of luck
Joao CT1FGW


--- On Wed, 4/29/09, Alan Melia wrote:
From: Alan Melia
Subject: [ukmicrowaves] Desynn sender??
To: ukmicrowaves@...
Date: Wednesday, April 29, 2009, 7:52 PM

Hi all I am on the "scounge" again. If you are under bus-pass holder age you
will be muttering what the h..... is a desynn. These were much used in WWII
and soon afterwards as sensors and where often part of position indicating
systems. I had a pair (sensor and indicator, acquired whilst I was at Uni
and never used, but I gave them away (I dont think the receipient used them
either !)

The Desynn is the DC version of the better known AC activated Selsyn which
is used in a lot of antenna rotators and indicators.. ....and uses multiple
phases to drive an indicator... ..often just called a "servo" because the
units are "motor generators" and beefy enough to drive as well as just
indicate.

The desynn sender is a circular wirewound (potentiometer like) track tapped
at the 120 degree points and activated by two wipers at 180 degrees apart on
the track, usually via a standard 1/4 inch (6.35mm for the youngsters)
spindle . A DC voltage (24 volts usually) is put across the wipers and the
signals at the taps are fed down three wires to three coils in the indicator
connected in star configuration which drive a pointer to repeat the position
and movement of the wiper-spindle on the sender. So you know exactly where
your 15inch guns are pointing before you gently squeeze the trigger ....er
was that Bismark ??

I have unearthed another indicator but would very much like to get another
sensor or sender unit. If you have one of these unusual things sitting
around lonely in you junk box I would be happy to put it to use, and allow
it to enjoy a happy and useful retirement (like me !!) I dont mind if you
dont have the long obsolete circular multiway connector that the
interconnection wires used to be fed through.

Alan G3NYK



24/47/76GHz Cumulatives Sunday 3 May

Peter Day <microwaves@...>
 

Is anyone planning to be on for this contest? I don't want to go out /P if there is no one to work, within a reasonable range :-)

I will go to MERRYTON LOW IO93AD51 to start with (by 0900z) but will move to Alport IO93FB44 and other suitable sites if activity warrants it.

Details:

G3PHO/P: IO93AD, IO93FB, etc
24GHz: 2W output 60cm odffest dish
47GHz: 22mW CW/FM. 35cm offset dish
Talkback: 144.175MHz ssb 50W 9 ele yagi
KST: Vodaphone broadband mobile


Re: 10GHz Trophy Contest

Peter Day <microwaves@...>
 

Hi Bob..

Just read your email... sorry for the delay in replying.

I've only just realised that it is the 10Ghz Trophy contest on Saturday and the UKuG 24/47/76GHz contest on Sunday. As I can't really justify giving up the whole weekend to microwaves I think I'll go out on the Sunday but maybe take a reduced size 10GHz system (ie 60cm dish instead of 1.2m) out as well foir othe lads in the IARU contest....

Most likely Merryton Low IO93AD plus other Peak District "rover" locations according to millimetre band activity. I will of course try to get to a suitable location to work GD0EMG on 24GHz.

73

Peter G3PHO


Robert Price wrote:

Hi Peter
Don't let me put you off using Winter Hill if it is an appropriate site for you. I am only going to be there for about 3 hours anyway. I'm still not sure what I will be able to achieve with the gear I have and it may be a waste of a good site.
I have done more work on the system recently, but I'm not sure yet how well everything is working. I have finished the 18" dish feed and managed to align it with the help of John MW1FGQ. The dish does have more gain than the horn, probably 6 dB or so, which I guess is about what could be expected. I have also fitted a preamp, but I am not sure what the noise figure is or whether it is any better than the front end of the transverter. All I know is that it has lots of gain.
I still need to put a calibrated scale on the bearing so that I can accurately point the dish, but I will do that during the week.
Hope I can give you some points on Saturday.
regards
Bob
G8DTF


RAL pictures

DF6NA Rainer
 

with some delay because I stayed in England up to tuesday I've put the pictures on my homepage.
http://www.df6na.de/df6na/trip/2009-04/index.htm

Hope you enjoy!
73, Rainer

--



VHF/UHF/SHF Online Toplist:
http://www.vhf-dx.net/top.html

DF6NA Homepage:
http://www.df6na.de/

Amateurfunk-Flohmarkt:
http://www.afu-flohmarkt.de/

VHF-DX.net:
http://www.vhf-dx.net/


Desynn sender??

Alan Melia
 

Hi all I am on the "scounge" again. If you are under bus-pass holder age you
will be muttering what the h..... is a desynn. These were much used in WWII
and soon afterwards as sensors and where often part of position indicating
systems. I had a pair (sensor and indicator, acquired whilst I was at Uni
and never used, but I gave them away (I dont think the receipient used them
either !)

The Desynn is the DC version of the better known AC activated Selsyn which
is used in a lot of antenna rotators and indicators......and uses multiple
phases to drive an indicator.....often just called a "servo" because the
units are "motor generators" and beefy enough to drive as well as just
indicate.

The desynn sender is a circular wirewound (potentiometer like) track tapped
at the 120 degree points and activated by two wipers at 180 degrees apart on
the track, usually via a standard 1/4 inch (6.35mm for the youngsters)
spindle . A DC voltage (24 volts usually) is put across the wipers and the
signals at the taps are fed down three wires to three coils in the indicator
connected in star configuration which drive a pointer to repeat the position
and movement of the wiper-spindle on the sender. So you know exactly where
your 15inch guns are pointing before you gently squeeze the trigger ....er
was that Bismark ??

I have unearthed another indicator but would very much like to get another
sensor or sender unit. If you have one of these unusual things sitting
around lonely in you junk box I would be happy to put it to use, and allow
it to enjoy a happy and useful retirement (like me !!) I dont mind if you
dont have the long obsolete circular multiway connector that the
interconnection wires used to be fed through.

Alan G3NYK


Re: 10GHz Trophy Contest

Richard Newstead <g3cwi@...>
 

--- In ukmicrowaves@..., "Richard Newstead" <g3cwi@...> wrote:

My current plans are to be here:

I should have added that if anyone wants to join me on Saturday to see 10GHz portable in action they will be very welcome. Contact me on 01625-425700.

73

Richard
G3CWI