Date   

Re: Activity List for UKuG 1.3/2.3/3.4GHz Contest 27 November

gm4cxm <gm4cxm@...>
 

Call: GM4CXM
Locator: IO75TW
Bands: 1.3GHz 150W 4x44ele
2.3GHz 60W 67el
Talkback: Direct CQ on 23cms, ON4KST.
Times: Some breaks but around most of the time.

73 Ray GM4CXM IO75TW


Re: Activity List for UKuG 1.3/2.3/3.4GHz Contest 27 November

Robert Price <g8dtf@...>
 

Hi John

I will be active as follows:-

Call:                G8DTF
Locator:        IO83SM
Bands:            1.3GHz      3W  44 ele Wimo
                        2.3GHz    10W  0.8m dish
                        3.4GHz      5W  0.8m dish
Talkback:    Direct CQ on all bands, ON4KST.
Times:        Various times.

73

Bob
G8DTF


From: G3XDY
To: ukmicrowaves@...
Sent: Saturday, 19 November 2011, 13:23
Subject: [ukmicrowaves] Activity List for UKuG 1.3/2.3/3.4GHz Contest 27 November

The final UK Microwave Group contest of 2011 takes place on Sunday the 27th
November, on 1.3, 2.3 and 3.4GHz.

As usual I will circulate an activity list beforehand, so please let me know
your operating plans.

I will be active as follows:

Call:                G3XDY
Locator:        JO02OB
Bands:            1.3GHz  400W  4x23ele
                        2.3GHz    100W  0.8m dish
                        3.4GHz      20W 0.6m dish
Talkback:    Direct CQ on 23cms, ON4KST.
Times:        From 10:00 for an hour or so.


73

John G3XDY



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Activity List for UKuG 1.3/2.3/3.4GHz Contest 27 November

John Quarmby
 

The final UK Microwave Group contest of 2011 takes place on Sunday the 27th November, on 1.3, 2.3 and 3.4GHz.

As usual I will circulate an activity list beforehand, so please let me know your operating plans.

I will be active as follows:

Call: G3XDY
Locator: JO02OB
Bands: 1.3GHz 400W 4x23ele
2.3GHz 100W 0.8m dish
3.4GHz 20W 0.6m dish
Talkback: Direct CQ on 23cms, ON4KST.
Times: From 10:00 for an hour or so.


73

John G3XDY


Re: Looking for UNEF TAPS

Michael Scott
 


Hi Francois, John
 
Try Tracy Tools www.TracyTools.com , they are cheaper than normal commercial sources and list a very wide range of both metric and imperial taps and dies. They will be at the Model Engineering Exhibition next month, but don't bring there full stock to the shows, so probably necessary to order by mail, online or by phone (01803 328157 ).
 
Hope this helps.
 
Mike, G3LYP 

----- Original Message -----
From: john@...
Sent: Saturday, November 19, 2011 8:29 AM
Subject: Re: [ukmicrowaves] Looking for UNEF TAPS

 

There is a shop in Coventry that can supply them (at a price). I'll send you their details if you don't get any other offers BUT I am going to a model engineering exhibition where there will be various tool companies; I may be able to buy one for you there. What sizes to you require? Please reply before 10:00

de John G8SEQ

> -------Original Message-------
> From: F1CHF <F1CHF@...>
> To: ukmicrowaves@...
> Subject: [ukmicrowaves] Looking for UNEF TAPS
> Sent: Nov 19 '11 08:23
>
> Hello
> To use [LINK: mailto:PI@C] PI@C filters ( called here BY-PASS)
> see here :
> [LINK: http://www.tusonix.com/4000R7Sec2.pdf]
> http://www.tusonix.com/4000R7Sec2.pdf
>
> We must use specials TAPS (eg : #12-32 UNEF -2A)
>
> question : Do you know a shop in UK that will be OK
> to sell us some of them ?
>
> Thanks in davance
> Francois F1CHF
>
>


Re: Looking for UNEF TAPS

Peter Torry <peter_torry@...>
 

Francois,

I use a company called Tracey Tools who supply any tap or die, have a look at http://tracytools.com/

73

Peter
G3SMT


From: F1CHF
To: ukmicrowaves@...
Sent: Saturday, 19 November 2011, 8:23
Subject: [ukmicrowaves] Looking for UNEF TAPS

 
Hello
To use PI@C filters ( called here BY-PASS)
see here :
 
We must use specials TAPS (eg : #12-32 UNEF -2A)
 
question : Do you know a shop in UK that will be OK
to sell us some of them ?
 
Thanks in davance
Francois F1CHF
 



Re: Looking for UNEF TAPS

John E. Beech
 

OK Francois, I'll look for some.

de John G8SEQ.

-------Original Message-------
From: F1CHF <F1CHF@free.fr>
To: ukmicrowaves@yahoogroups.com
Subject: Re: [ukmicrowaves] Looking for UNEF TAPS
Sent: Nov 19 '11 08:54


Super
if possible just TWO TAPS #12-32 UNEF -2A
thanks in advance
Francois (paypal ready)

----- Original Message -----
FROM: [LINK: mailto:john@g8seq.com] john@g8seq.com
TO: [LINK: mailto:ukmicrowaves@yahoogroups.com]
ukmicrowaves@yahoogroups.com
SENT: Saturday, November 19, 2011 9:29 AM
SUBJECT: Re: [ukmicrowaves] Looking for UNEF TAPS


There is a shop in Coventry that can supply them (at a price). I'll send
you their details if you don't get any other offers BUT I am going to a
model engineering exhibition where there will be various tool companies;
I may be able to buy one for you there. What sizes to you require? Please
reply before 10:00

de John G8SEQ

> -------Original Message-------
> From: F1CHF <[LINK: mailto:F1CHF%40free.fr] F1CHF@free.fr>
> To: [LINK: mailto:ukmicrowaves%40yahoogroups.com]
ukmicrowaves@yahoogroups.com
> Subject: [ukmicrowaves] Looking for UNEF TAPS
> Sent: Nov 19 '11 08:23
>
> Hello
> To use [LINK: mailto:PI@C] PI@C filters ( called here BY-PASS)
> see here :
> [LINK: [LINK: http://www.tusonix.com/4000R7Sec2.pdf]
http://www.tusonix.com/4000R7Sec2.pdf]
> [LINK: http://www.tusonix.com/4000R7Sec2.pdf]
http://www.tusonix.com/4000R7Sec2.pdf
>
> We must use specials TAPS (eg : #12-32 UNEF -2A)
>
> question : Do you know a shop in UK that will be OK
> to sell us some of them ?
>
> Thanks in davance
> Francois F1CHF
>
>


Re: Looking for UNEF TAPS

F1CHF
 


Super
if possible just TWO TAPS #12-32 UNEF -2A
thanks in advance
Francois (paypal ready)
 

----- Original Message -----
From: john@...
Sent: Saturday, November 19, 2011 9:29 AM
Subject: Re: [ukmicrowaves] Looking for UNEF TAPS

 

There is a shop in Coventry that can supply them (at a price). I'll send you their details if you don't get any other offers BUT I am going to a model engineering exhibition where there will be various tool companies; I may be able to buy one for you there. What sizes to you require? Please reply before 10:00

de John G8SEQ

> -------Original Message-------
> From: F1CHF <F1CHF@...>
> To: ukmicrowaves@...
> Subject: [ukmicrowaves] Looking for UNEF TAPS
> Sent: Nov 19 '11 08:23
>
> Hello
> To use [LINK: mailto:PI@C] PI@C filters ( called here BY-PASS)
> see here :
> [LINK: http://www.tusonix.com/4000R7Sec2.pdf]
> http://www.tusonix.com/4000R7Sec2.pdf
>
> We must use specials TAPS (eg : #12-32 UNEF -2A)
>
> question : Do you know a shop in UK that will be OK
> to sell us some of them ?
>
> Thanks in davance
> Francois F1CHF
>
>


Re: Looking for UNEF TAPS

John E. Beech
 

There is a shop in Coventry that can supply them (at a price). I'll send you their details if you don't get any other offers BUT I am going to a model engineering exhibition where there will be various tool companies; I may be able to buy one for you there. What sizes to you require? Please reply before 10:00

de John G8SEQ

-------Original Message-------
From: F1CHF <F1CHF@free.fr>
To: ukmicrowaves@yahoogroups.com
Subject: [ukmicrowaves] Looking for UNEF TAPS
Sent: Nov 19 '11 08:23

Hello
To use [LINK: mailto:PI@C] PI@C filters ( called here BY-PASS)
see here :
[LINK: http://www.tusonix.com/4000R7Sec2.pdf]
http://www.tusonix.com/4000R7Sec2.pdf

We must use specials TAPS (eg : #12-32 UNEF -2A)

question : Do you know a shop in UK that will be OK
to sell us some of them ?

Thanks in davance
Francois F1CHF


Looking for UNEF TAPS

F1CHF
 

Hello
To use PI@C filters ( called here BY-PASS)
see here :
 
We must use specials TAPS (eg : #12-32 UNEF -2A)
 
question : Do you know a shop in UK that will be OK
to sell us some of them ?
 
Thanks in davance
Francois F1CHF
 


GB2RS Microwave News

g6jyb <mjniman@...>
 

Hi

The web version of GB2RS has been specially extended to include additional info on the looming issues for some microwave bands

See
http://www.rsgb.org/news/newsitem.php?id=2

and look at the weblinks for the detail

Dont panic:)

A further announcement is due from DCMS shortly following this
http://www.culture.gov.uk/publications/7994.aspx

Murray G6JYB


boontom 4200

Chris
 

HI does anyone on the list have a Boonton 4200


AVO M2007

Clive <clivejenner@...>
 

Hi everyone. This is completely off topic but I hope I am forgiven. I had an accident yesterday with my AVO / Megger M2007 digital multimeter. I have had it for years and it's an old friend it deserves better!

By any chance does anyone have a copy of a schematic for it.

Thanks in advance for any help. 73 Clive GW0PPO


Re: GM & OY

Rob, M0DTS
 

Very similar good conditions here in IO94 yesterday but a VERY sharp cut off of signals between 7:15PM and 7:30PM where GB3VHF,PI7QHN,DB0VC all disappeared within minutes of each other and never returned, quite amazing how quick the drop was, never seen anything like that before.

I guess 100W is not enough on 23cm these days as i never got any replies to CQ's yesterday despite hearing PA/DL/LA and GB3MHL at very good strengths.
Fingers crossed for some Extreme tropo to wake everyone up soon!

Rob

On 17/11/2011 09:16, Martin Andrew wrote:
Some really good conditions, but not many stations QRV, in fact I worked
more (6) off the moon
than I did (1) on tropo yesterday !. Even during the better part (15th)
activity was surprisingly low even though there were some good paths out to
1000Km and possibly more.
Conditions East disappeared late afternoon, but continued to OY with both
OY9JD and the 2 and 70cm beacons
audible until very late.
Basically did not have 23cm antennas up due to a bad knee. Maybe will put
the antenna up and see if I can
work more than five a year (record for last 3 years) when I can climb a
ladder.
No 13cm, did have equipment but never finished it and doubt I would work
much anyway.

This morning only very weak beacons (LA/PA) heard, so the ducting has moved
or disappeared.

Martin, GM6VXB

----- Original Message -----
From: "Rainer"<df6na@df6na.de>
To:<ukmicrowaves@yahoogroups.com>
Sent: Thursday, November 17, 2011 8:44 AM
Subject: Re: [ukmicrowaves] GM& OY


Am 16.11.2011 20:36, schrieb Martin Andrew:
Already worked DB6NT (yesterday), and listening to OY6BEC on 432 just
now.
No 23cm but I am sure I would hear that one as well.

Martin, GM6VXB
(IO97aq(87))
Hi Martin,

hope I could create some activity last night. Think DB6NT worked
some stations. Unfortunately nothing here - as most times.
You definitly should come on 23cm and 13cm. Sometime it
will work and we can make contacts. Unil today did not work
GM on 70cm - but have no antennas up for years now.

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/

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November 23cm UKAC - Report

Ray James <gm4cxm@...>
 


The fluctuation in numbers entering either the 70cm and following weeks 23cm UKACs this year has been quite similar and noting November produced a year topping 99 logs on 70cm, the 23cm event last Tuesday did not dissapoint with above average participation.
I managed to make 38 contacts which equalled a previous highest count made earlier in the year and would have been surpassed had conditions not been against me the longer the contest went on.
The tropo duct enjoyed by those on the east coast and further south did not extend to the west of Scotland, if anything, there appeared to be a weather front obstruction to working anything to the east after the first hour.
Things started well enough with big signals from G8PNN (IO95), G0MJW (IO91), G4EAT and G8XIR (JO01) and G3PYE/P (JO02).
ODX was an aircraft reflection contact with Kjeld OZ1FF (JO45) at 782Km and whose signal peaked 579 with me and 59+ with nearby GM0USI/P (IO76) who was well placed to tailend.
Not being aware that problems would occur to the eastern side of the UK later, I was quite content to concentrate with an above average number to work on the western side and midlands.
This included a few pile-ups both on SSB and CW which is certainly not a typical experience on 1.3GHz! 
Inevitably there were a number of gotaways or low powered stations I just couldn't pull through this time unfortunately.
It later became obvious I was missing a number of reachable square multipliers like IO93, 94, 86, 87. Despite attempts with G8EOP & G8GXP (IO93), G0EHV/P (IO94) and GM3UAG (IO87), nothing was heard either end.
The end result was a final 45 minutes of concerted effort producing just one contact. This was with Ian at G8OHM with a superb serial number of 61 and an impressive ODX of 1,067Km via tropo to SM6HYG.
Ian has soundly surpassed his previous "55" highest QSO number made earlier this year by a substantial margin. Well done!
From what I observed there were at least 14 GMs active during the 23cm UKAC.
With less than 2 full days gone, logs submitted so far are just 10 short of equalling the current highest number of 47 for the 2011 session.
All in all, a very positive position with one month remaining in this contests calendar and identifying growth of interest in particular from those with much experience on 2m/70cm moving up in frequency.

My contact map can be viewed at http://maps.google.com/maps?q=http://www.rsgbcc.org/vhf/kml_files/2011/sgEcFLK0VcxXnJG3ipo2KI9fXTSeI4e
 
73 Ray GM4CXM IO75TW
150w 4x44el Wimo @ 11m + LNA.


Re: GM & OY

GM6VXB
 

Some really good conditions, but not many stations QRV, in fact I worked more (6) off the moon
than I did (1) on tropo yesterday !. Even during the better part (15th) activity was surprisingly low even though there were some good paths out to 1000Km and possibly more.
Conditions East disappeared late afternoon, but continued to OY with both OY9JD and the 2 and 70cm beacons
audible until very late.
Basically did not have 23cm antennas up due to a bad knee. Maybe will put the antenna up and see if I can
work more than five a year (record for last 3 years) when I can climb a ladder.
No 13cm, did have equipment but never finished it and doubt I would work much anyway.

This morning only very weak beacons (LA/PA) heard, so the ducting has moved or disappeared.

Martin, GM6VXB

----- Original Message -----
From: "Rainer" <df6na@df6na.de>
To: <ukmicrowaves@yahoogroups.com>
Sent: Thursday, November 17, 2011 8:44 AM
Subject: Re: [ukmicrowaves] GM & OY


Am 16.11.2011 20:36, schrieb Martin Andrew:
Already worked DB6NT (yesterday), and listening to OY6BEC on 432 just now.
No 23cm but I am sure I would hear that one as well.

Martin, GM6VXB
(IO97aq(87))
Hi Martin,

hope I could create some activity last night. Think DB6NT worked
some stations. Unfortunately nothing here - as most times.
You definitly should come on 23cm and 13cm. Sometime it
will work and we can make contacts. Unil today did not work
GM on 70cm - but have no antennas up for years now.

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/

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Re: GM & OY

DF6NA Rainer
 

Am 16.11.2011 20:36, schrieb Martin Andrew:
Already worked DB6NT (yesterday), and listening to OY6BEC on 432 just now.
No 23cm but I am sure I would hear that one as well.

Martin, GM6VXB
(IO97aq(87))
Hi Martin,

hope I could create some activity last night. Think DB6NT worked
some stations. Unfortunately nothing here - as most times.
You definitly should come on 23cm and 13cm. Sometime it
will work and we can make contacts. Unil today did not work
GM on 70cm - but have no antennas up for years now.

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/


Re: GM & OY

GM6VXB
 

Already worked DB6NT (yesterday), and listening to OY6BEC on 432 just now.
No 23cm but I am sure I would hear that one as well.

Martin, GM6VXB
(IO97aq(87))

----- Original Message -----
From: "Rainer" <df6na@df6na.de>
To: <ukmicrowaves@yahoogroups.com>
Sent: Wednesday, November 16, 2011 5:53 PM
Subject: [ukmicrowaves] GM & OY


Hi,
DB6NT is listening OY6 beacon on 70cm (549) and 23cm (559) !
Time to get on the bands !!!
73, Rainer
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GM & OY

DF6NA Rainer
 

Hi,

DB6NT is listening OY6 beacon on 70cm (549) and 23cm (559) !
Time to get on the bands !!!

73, Rainer


Re: FT 290 problem

Mansueto Grech <mansueto.grech@...>
 

Hi Coin,
Don't give up on the rig.
Writing it off is not the solution.
73's

Mans. 9H1GB

On Nov 15, 2011 5:18 PM, "M5FRA - Colin" <m5fra@...> wrote:
 

Bill, a very big thank you for the most coherent explanation of the
likely probelm. I have changed a few 10mfd electrolytics already, some
were visibly leaking others had a v.high ESR. Will have another look
before I write it off.

Colin - G8FRA/M5FRA

www.m5fra.org.uk

------ Original Message ------
From: "Bill Hall" <whhall@...>
To: ukmicrowaves@...
Sent: 15/11/2011 15:42:49
Subject: [ukmicrowaves] Re: FT 290 problem
>Colin, here is more info for you.
>If there is no negative 6.8 volt supply then Q1014 cannot take the gate of Q1015 negative and so it cannot be pinched off. This means that the S meter will always read full scale. The TX ALC problem is the same mechanism. The -6.8 volts is generated by Q4005 ICL7660 on the regulator board. This has probably stopped working because C4014 or C4015 have gone leaky. The extra current drawn is killing the DC-DC convertor. After a while the capacitor reforms enough to reduce the leakage and the convertor will recover and start working again. I would replace both capacitors if you confirm that this is the problem.
>
>I hope this explanation helps.
>
>bill G3RMX
>
>--- In ukmicrowaves@..., "colin" wrote:
>
>>
>>
>>My Mk1 290 has developed a fault - on switch on the S meter goes hard over and the TX will not work. After a period of time, depending on how long the radio was last used, the S meter gradually returns to zero and the TX O/P rises.
>>
>>This is a common fault and the only cure I have seen is to remove Q1014 which kills the AGC. Not a good fix.
>>
>>Has anybody any ideas on a proper repair?
>>
>>Colin - G8FRA/M5FRA
>>
>>
>
>
>
>
>
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Re: FT 290 problem

Brian Flynn GM8BJF
 

Dear Colin,

I had exactly this problem with my 290 which I use as an IF radio for microwaves. When the set was cold (when out /P in GM!) the S-meter would "pin" and the the ALC would cut in full on Tx. I first supected caps leaking but found that it was more subtle. It was a bit of dodgey design by Yaesu!.

The problem lies at the base of Q1014 which amplifies the output of the AGC/ALC rectifier diodes. There is no bias resistor on the base of taht transistor and it depends on the leakage of the diodes to keep the transistor turned off on the absence of signal. The solution I found was to add a 47k resistor between the base and emmitter of Q1014. Presumably when the diodes are cold they are less leaky in reverse and the base charges up turning it on. My set has been fine since doing this and has been tested overnight in the refidgerator. It is most easily done adding an SMD resistor on the track side of the PCB. It also is a low risk fix to the PCB.

G3LLL first described this mod a in a PW article in August 2007. I have a scan of the original article and I think it is in the files section of this group if you search for it.

Hope that is of use.

73s

Brian,

GM8BJF.

--- In ukmicrowaves@yahoogroups.com, "colin" <m5fra@...> wrote:

My Mk1 290 has developed a fault - on switch on the S meter goes hard over and the TX will not work. After a period of time, depending on how long the radio was last used, the S meter gradually returns to zero and the TX O/P rises.

This is a common fault and the only cure I have seen is to remove Q1014 which kills the AGC. Not a good fix.

Has anybody any ideas on a proper repair?

Colin - G8FRA/M5FRA