1. UKMicrowaves@groups.io
   Date   
ADF 4350

David <david.g6feo@...>
 

Hello All,

Having read the messages about ADF 4351 I decided to have a dabble, but
I did not need the LF frequencies, I'm after something at 4.2GHz.

Hence I bought an ADF 435X evaluation board from China, it's fitted
with an ADF 4350, it arrived today. It cost me just under £15.

The soldering is not pretty, but it looks functional.

Can anybody point me in the right direction to find data sheets for the
board and a method of setting the frequency.

Thank you,

David.
G6FEO.
FREE test equipment

Dave G8KHU
 

Hi all

Further to my earlier list I've been working through the surplus test equipment to check that things are good enough to be saleable. The following items are not and so are offered FREE to anyone interested for spares, repair or general salvage.


2 off Fireberd 6000 BER test sets - I can't remember how to drive them so I'm unable to test


1 off HP7035B X-Y Plotter - noisy pots


2 off Philips PM3585 Logic Analysers with pods etc - wobbly crt displays and iffy keys


1 off HP8662A 1280MHz signal generator - multiple non-responsive keys and sometimes randomly rests but may be OK if driven via GPIB, I haven't tried


Collection from Newbury (10 mins from M4 Jcn 13) or I can take to Crawley

If anyone wants any or all of the above please respond diectly to my email

Regards
Dave
GMRT 2016

John GM8OTI
 

The GM Microwave Round Table will be on Saturday 12 November. Booking is now open on

http://www.gmroundtable.org.uk/

 

The programme is not yet confirmed; there will be further announcements when there is more information.

John Cooke GM8OTI
Réf. : Re: Hi can any one identify my Mimic?

F1CHF
 

Clive
print it and keep it ..
 
hope that PDF is visible
Francois F1CHF
 
 
 
 
 
-------Message original-------
 
Date : 15/09/2016 12:25:49
Sujet : [ukmicrowaves] Re: Hi can any one identify my Mimic?
 
 

Hi and thanks to those that kindly answered my question ref my unknown
Mimic.

You have confirmed my suspicions.

73 Clive GW0PPO

 

Re: Hi can any one identify my Mimic? [1 Attachment]

Clive Jenner
 

Hi and thanks to those that kindly answered my question ref my unknown Mimic.

You have confirmed my suspicions.

73 Clive GW0PPO
Re: Hi canyone identify my Mimic? [1 Attachment]

g4bao
 

AO6 would be a MAR6


On 14 Sep 2016 12:27, "clivejenner@... [ukmicrowaves]" <ukmicrowaves@...> wrote:
 
[Attachment(s) from clivejenner@... [ukmicrowaves] included below]

Hi, I wonder if anyone can identify some Mimics that I have dug out of my parts draw?

With the aid of a Magnifying glass and my bench mounted magnifying lens and pushing my eye sight to the limit I believe the marking is "A06" Having used my cameras Macro facility. I have confirmed my eye sight did not deceive me. Image attached.

Any help would be appreciated 73 Clive GW0PPO
Re: Hi canyone identify my Mimic? [1 Attachment]

SAM JEWELL
 

MAR6

Sam, G4DDK




From: "clivejenner@... [ukmicrowaves]"
To: ukmicrowaves@...
Sent: Wednesday, 14 September 2016, 12:27
Subject: [ukmicrowaves] Hi canyone identify my Mimic? [1 Attachment]

 
[Attachment(s) from clivejenner@... [ukmicrowaves] included below]
Hi, I wonder if anyone can identify some Mimics that I have dug out of my parts draw?

With the aid of a Magnifying glass and my bench mounted magnifying lens and pushing my eye sight to the limit I believe the marking is "A06" Having used my cameras Macro facility. I have confirmed my eye sight did not deceive me. Image attached.

Any help would be appreciated 73 Clive GW0PPO
Re: Hi canyone identify my Mimic?

ian hope (2E0IJH)
 

Was just about to say the same, 
https://www.minicircuits.com/pdfs/MAR-6+.pdf
 
Ian
2E0IJH

Sent: Wednesday, September 14, 2016 at 12:29 PM
From: "Andy Talbot andy.g4jnt@... [ukmicrowaves]"
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Hi canyone identify my Mimic?
 

 

MAR-6
 
'jnt
 
 
On 14 September 2016 at 12:27, clivejenner@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
[Attachment(s) from clivejenner@... [ukmicrowaves] included below]

Hi, I wonder if anyone can identify some Mimics that I have dug out of my parts draw?

With the aid of a Magnifying glass and my bench mounted magnifying lens and pushing my eye sight to the limit I believe the marking is "A06" Having used my cameras Macro facility. I have confirmed my eye sight did not deceive me. Image attached.

Any help would be appreciated 73 Clive GW0PPO

 

 
Re: Hi canyone identify my Mimic? [1 Attachment]

Andy G4JNT
 

MAR-6

'jnt


On 14 September 2016 at 12:27, clivejenner@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
[Attachment(s) from clivejenner@... [ukmicrowaves] included below]

Hi, I wonder if anyone can identify some Mimics that I have dug out of my parts draw?

With the aid of a Magnifying glass and my bench mounted magnifying lens and pushing my eye sight to the limit I believe the marking is "A06" Having used my cameras Macro facility. I have confirmed my eye sight did not deceive me. Image attached.

Any help would be appreciated 73 Clive GW0PPO
Hi canyone identify my Mimic?

Clive Jenner
 

Hi, I wonder if anyone can identify some Mimics that I have dug out of my parts draw?

With the aid of a Magnifying glass and my bench mounted magnifying lens and pushing my eye sight to the limit I believe the marking is "A06" Having used my cameras Macro facility. I have confirmed my eye sight did not deceive me. Image attached.

Any help would be appreciated 73 Clive GW0PPO
Equipment for sale

Steve G4HTZ
 

Got the following equipment for sale ...going to Crawley Sunday 

Downeast microwave 2w in 8w+ out 10ghz amp
3.4ghz PLL lnb ..new ..ideal for 3.4ghz ATV repeaters 
DB6NT 10ghz 200mw ATV TX plus DG0VE baseband modulator 
10ghz LNBs modified for 9ghz LO
23/24cms G1MFG TX board , display board and 1w amp..built into box..needs finishing.
10ghz dish with waveguide / dipole feed.
2x lengths flexi waveguide wg16

Any interest please e mail direct ..and I will provide further details 
Essexsteve@...

Steve G4HTZ
Re: Réf. : Re: Re: 5.7 GHz PAs

geoffrey pike
 

Just to confirm some numbers, with the SMAs changed and at 5.750 GHz
21.4 dBm in gives 36 dBm out or 140 mW in for 4 watts out and only slightly compressed.
So perhaps an out board wilkinson  combiner/splitter  for some more power using two of these.
Geoff
GI0GDP
the cover was not fitted at this time.



On Friday, 26 August 2016, 20:08, "Andy Talbot andy.g4jnt@... [ukmicrowaves]" wrote:


 
After a few minutes at over 4 Watts 100% dutu cycle mine dropped power suddenly by about 3dB, but after turning off then allowing to cool, full power was restored.   The LED / PSU was fine.

So it down look as if the advised levels of 3 Watts continuous and 4.5Watts max should be adhered to.

Did you try it after cooling down ?    The SMPSU chip may have an over-temperature cutout.

'jnt


On 26 August 2016 at 19:52, g4cch_1@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
I changed the connectors on mine today, and all was working fine and I saw abt 4.5W.
Now I have lost outout, and the red LED on the heatsink side of the pcb is no longer lit.
I guess the on board psu has died or something more serious...??
Will remove the can and have a look later...

Best 73, Howard - G4CCH
24GHz gear at Crawley

STEPHEN COOKE
 

Due to a change in circumstances , there will be one possibly two 24GHz
transverters for sale at Crawley .

Both are 432 MHz I.F. , based on the Alcatel " white box " modules
and fully working ..... 500mW output if I remember correctly ... I will
check the paperwork .

Looks like there will be lots of goodies for sale on Sunday !

Steve G1MPW
Re: Crawley Round table. G4BAO kits update.

g4bao
 

No. It's all on www.g4bao.com


On 13 Sep 2016 20:02, "'Paul Bicknell' paul@... [ukmicrowaves]" <ukmicrowaves@...> wrote:
 

Hi John

Could you please post the specification for the 2.5 watt pa kit on this site also the cost ?

 

From: ukmicrowaves@... [mailto:ukmicrowaves@yahoogroups.com]
Sent: 13 September 2016 10:46
To: Ukmicrowaves (ukmicrowaves@...)
Subject: [ukmicrowaves] Crawley Round table. G4BAO kits update.

 

 

Hi Folks
I now have just ONE 45 Watt 23cm PA kit left and have no plans to make any more unless there is a sudden large uptick in demand.

First email (and subsequent payment!) gets the kit, or if not I'll bring it to Crawley on Sunday.

I still have plenty of the 2.5 watts driver kits so If you want to collect one from Crawley on Sunday please email me and I'll bring enough for all.

73

John

 

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Checked by AVG - www.avg.com
Version: 2016.0.7752 / Virus Database: 4649/13011 - Release Date: 09/13/16
Microwave equipment for sale

Steve G4HTZ
 

Got the following equipment for sale ...going to Crawley Sunday

Downeast microwave 2w in 8w+ out 10ghz amp
3.4ghz PLL lnb ..new ..ideal for 3.4ghz ATV repeaters
DB6NT 10ghz 200mw ATV TX plus DG0VE baseband modulator
10ghz LNBs modified for 9ghz LO
23/24cms G1MFG TX board , display board and 1w amp..built into box..needs finishing.
10ghz dish with waveguide / dipole feed.
2x lengths flexi waveguide wg16

Any interest please e mail direct ..and I will provide further details
Essexsteve@icloud.com

Steve G4HTZ
Re: 3cm good this morning

Mark Turner <ei3kd@...>
 

WebSDR is rx JO21, JO22 and JO34 beacons this (14th Sep) morning on 3cms, very strong!

Regards,

Mark EI3KD


On 13/09/2016 09:46, martin_ehrenfried@... [ukmicrowaves] wrote:
 

HI All,


3cm is very good this morning - lots of beacons to be seen on the SUWS WEB SDR.


Regards,


Martin - G8JNJ


www.g8jnj.net

www.tc2m.info

http://websdr.suws.org.uk
Re: Test Equipment for Sale

Dave G8KHU
 

Sorry there is a typo on the list, the HP473B power meter should read HP437B
Re: calling / working frequency

Wolfgang Hoeth OE4WOG
 

 
 
------ Originalnachricht ------
Von: "'Paul Bicknell' paul@... [ukmicrowaves]" <ukmicrowaves@...>
Gesendet: 13.09.2016 20:53:00
Betreff: RE: [ukmicrowaves] calling / working frequency
 

 

Hi Wolfgang

 

Interesting  the reason I asked the question  is I have two 76 Ghz transceivers that I need to re Xtal

I am also looking for a local oscillator chine to use at 135Ghz

 

So from your note 76,032,1   is not preferred and I have been told the UK have moved from

76,032,1  to 75.967,1  have I got this correct

 

Regards Paul B

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 12 September 2016 19:23
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] calling / working frequency

 

 

24.048,1

48.088,1

76,032,1   note 1

134.928,1 note 2

 

note 1: not preferred ( because of second allocation to amateur radio ) but still used widely in Central Europe

note 2: according to IARU Region 1 frequency allocation, used only in Central Europe

 

BTW: asking for changes in frequency plans and allocations may not accepted at the time being, but more detail explanations will help to understand the issue(s) 

 

73 de Wolfgang,  OE4WOG

microwave manager OEVSV

 

------ Originalnachricht ------

Von: "paul@... [ukmicrowaves]" <ukmicrowaves@...>

Gesendet: 09.09.2016 11:56:33

Betreff: [ukmicrowaves] calling / working frequency

 

 

Hi all could someone please help with the calling / working frequency that are currently being used and if there is any intention to change them

The bands of interest are    24 , 47 , 76 , 135  Ghz 

Regards Paul B

 

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Checked by AVG - www.avg.com
Version: 2016.0.7752 / Virus Database: 4649/13011 - Release Date: 09/13/16
Re: LM2596S-ADJ Ebay modules

Andy G4JNT
 

I wasn't concerned with RF suppression from the module - that was dealt with elsewhere in the beacon source.

Its not noise from the 19V PSU source you need to concern yourself with, its making sure there is a low enough dynamic source impedance to cope with the  LM2596 on period.   Output C then defines the output ripple.    

The input C is by far the more important in boost converters - those that step a voltage up - as it has to supply the energy to be stored in the L during the on cycle.    Buck converters like these - ie. step down, are rather more benign as teh current through the output  L is essentially continuous so current spikes aren't so big.   

Lots of small low EST caps are better than one big one.

'jnt


On 13 September 2016 at 20:12, 'g8zha' g8zha@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

Just had a look at the ON Semiconductors data sheet. It recommends 100u on the input and 220-470u on the output. Did you add any small 10n caps to stop any HF on the output?

 

I am using one to power a Rubiduim 10MHz reference at 15V from a computer 19V PSU. I have included lots of L and C on the input as I reckoned the computer PSU would be quite noisy.

 

I will change the input and output caps for some Lo ESR types at work tomorrow, and add some L on the output of the module.

 

Thanks for your comments. Rich

 

From: ukmicrowaves@... [mailto:ukmicrowaves@yahoogroups.com]
Sent: 13 September 2016 17:46
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] LM2596S-ADJ Ebay modules

 




I stuck more C on the output and more C on the input.   They don't have enough input or output C even according to the data sheet recommendations.   Some input and output L and further RF decoupling  might help if you get radiated interference issues, but that wasn't a problem here.

 

'jnt

 

 

On 13 September 2016 at 17:42, 'g8zha' g8zha@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

I saw that Andy G4JNT used one of these modules in a recent project but said they needed  a few mods to improve the performance. Looking on the ’net suggests an additional coil and capacitor low pass filter on the output.

 

I wonder what you did Andy?

 

Regards, Rich

 

 
Re: Crawley Round table. G4BAO kits update.

Paul G8KFW
 

Thank you Steve  thought  it might create a bit of interest Paul B

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 13 September 2016 20:11
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Crawley Round table. G4BAO kits update.

 

 

In case John doesn't reply for a while details are on his website with downloads 

 

Steve G4HTZ


On 13 Sep 2016, at 20:02, 'Paul Bicknell' paul@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi John

Could you please post the specification for the 2.5 watt pa kit on this site also the cost ?

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 13 September 2016 10:46
To: Ukmicrowaves (ukmicrowaves@...)
Subject: [ukmicrowaves] Crawley Round table. G4BAO kits update.

 

 

Hi Folks
I now have just ONE 45 Watt 23cm PA kit left and have no plans to make any more unless there is a sudden large uptick in demand.

First email (and subsequent payment!) gets the kit, or if not I'll bring it to Crawley on Sunday.

I still have plenty of the 2.5 watts driver kits so If you want to collect one from Crawley on Sunday please email me and I'll bring enough for all.

73

John

 

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7752 / Virus Database: 4649/13011 - Release Date: 09/13/16

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Checked by AVG - www.avg.com
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