Date   

Re: 23cm amp. Looking for suggestions of built / ready to run units.

Peter G3SMT
 

Hi Andy,

I use a Meanwell switching power supply from, I think, Farnell without  any issues.  For a sequencer the W6pql unit available from a number of sources works well or an an alternative the relay based unit from the VHF DX Book.

Hope to see you on Friday 73

Peter  G3SMT


On 21/09/2019 11:23, Andy GD1MIP wrote:
Update.  I have bought a PE1RKI 150w amp unit from a UK amateur.  Not quite the ready to run option, but closer than I was. I've got relays and a case already.  Now I obviously need a 28v 11amp plus PSU and sequencer, If I can I'll try and add a bias T for my mast head preamp.

Thanks for your advice folks Andy GD1MIP.

--
Peter G3SMT


Re: 23cm amp. Looking for suggestions of built / ready to run units.

Stephen Tompsett
 

Consider the option of using a separate feeder for RX, powering the preamp and mast head relay via the RX feeder. This will minimise the loss on TX (no output relay needed in the power amp, and no bias tee in the TX feeder. A dB or so loss in the low power bias-tee in the RX feed is probably insignificant.

Or depending on your amplifier switching, put the bias tee on the input side of the amplifier, or in the amplifier bypass leg of the switching...

On 21/09/2019 11:23, Andy GD1MIP wrote:
Update.  I have bought a PE1RKI 150w amp unit from a UK amateur.  Not quite the ready to run option, but closer than I was. I've got relays and a case already.  Now I obviously need a 28v 11amp plus PSU and sequencer, If I can I'll try and add a bias T for my mast head preamp.

Thanks for your advice folks Andy GD1MIP.
-- 
Stephen Tompsett (G8LYB)
Tel: 01788 578940
Mob: 07956 855816


Re: 23cm amp. Looking for suggestions of built / ready to run units.

Andy GD1MIP
 

Update.  I have bought a PE1RKI 150w amp unit from a UK amateur.  Not quite the ready to run option, but closer than I was. I've got relays and a case already.  Now I obviously need a 28v 11amp plus PSU and sequencer, If I can I'll try and add a bias T for my mast head preamp.

Thanks for your advice folks Andy GD1MIP.


Re: LOGS?

militaryoperator
 

Ok, stupid me. 

Yes, can see that now. I 'thought' that was the standard saving, minos etc, but forgot I'd gone to the export click. 

Oh dear, the onset begins................


thanks both. Ben.


-----Original Message-----
From: Mike Willis <willis.mj@...>
To: UKMicrowaves <UKMicrowaves@groups.io>
Sent: Sat, 21 Sep 2019 8:03
Subject: Re: [UKMicrowaves] LOGS?

It's the one highlighted. Reg1Test writes an EDI file.

Did you look at the documentation? Pages 28 and 29 explain the formats that can be imported and exported.

https://sourceforge.net/projects/minos/files/Minos%20V2.2.0%20Documentation%20%28V2.2.0.0%29.pdf/download

--
Mike G0MJW


Re: LOGS?

Mike Willis
 

It's the one highlighted. Reg1Test writes an EDI file.

Did you look at the documentation? Pages 28 and 29 explain the formats that can be imported and exported.

https://sourceforge.net/projects/minos/files/Minos%20V2.2.0%20Documentation%20%28V2.2.0.0%29.pdf/download
--
Mike G0MJW


Re: 23cm and 70cm driver kits at Crawley on Sunday

Paul G8AQA
 

Hi John,

I am interested in a 70cm driver kit.  See you on Sunday.

73
Paul G8AQA

On 20/09/2019 19:02, John Worsnop wrote:
Hi Folks, looking forward to meeting up with you all at Crawley on Sunday for the Round Table.

I'll bring a few 70 and 23cm driver kits if anyone's interested.

73
John


Virus-free. www.avg.com


Re: LOGS?

G3UVR Denis IO83KH
 

Ben..

The default setting "Reg 1 Test entry" will create you and .EDI file which then can be uploaded to the RSGB entry page to submit an entry forr the contest.

73 de Denis G3UVR


Re: LOGS?

militaryoperator
 

Subject: Re: [UKMicrowaves] LOGS?

Export as EDI. It is in the help files.
--
Mike G0MJW


I can only see these options Mike. 

1a.jpg

and in Help I only see how to create an archive and add a .edi to it. 

Can not see where to create the .edi


Ben


23cm and 70cm driver kits at Crawley on Sunday

John Worsnop
 

Hi Folks, looking forward to meeting up with you all at Crawley on Sunday for the Round Table.

I'll bring a few 70 and 23cm driver kits if anyone's interested.

73
John


Drum Hill 6cms beacon on .870

John-G8ACE
 

I think I have the 6cm Beacon in Winchester at EME strength. It appears to be A1 keyed.
Yarwho rejects my beacon email so posting reception here.
Perhaps those that know would confirm keying which will clinch it as frequency is correct dish and heading looks right.
I have made a screen grab and must have done it during key up, as you do, as the carrier is missing in the bottom window of HDSDR
73s John G8ACE


Picom Dish using this dish at higher frequencies

Paul G8KFW
 

 

Hi all

 

I have a Picom Dish designed for 40 Ghz  has any one any experience in using this dish at higher frequencies 

It is cast aluminium so it should have a good profile

Regards Paul

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


--
Paul Bicknell G8KFW   South Coast UK


ANDREWS LDF550 connectors

Adrian G4UVZ
 

Two connectors and one adapter to N...£20 for all 3 plus postage at cost.
Adrian


Re: LOGS?

Mike Willis
 

Export as EDI. It is in the help files.
--
Mike G0MJW


Re: LOGS?

militaryoperator
 

What software for making a .log entry? 

I tried Minos Contest Logger, it makes .minos or .adi files

Can I convert either to .log??

Ben.




Re: 23cm amp. Looking for suggestions of built / ready to run units.

Paul G8KFW
 

Hi Dave  Thank you for pointing this gentlemen out he not only has 23 cm amps but also  13 Cm amps

 

One thing is if any one is going for a power amp for 23 Cm it should also works  OK to  1325 mhz

We have the band and we should use it

 

Regards Paul B

 

 


From: UKMicrowaves@groups.io [mailto:UKMicrowaves@groups.io] On Behalf Of David Redman
Sent: 20 September 2019 11:27
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] 23cm amp. Looking for suggestions of built / ready to run units.

 

Andy

Look at Jim's W6PQL site

He has a good range and reputation , kits , assembled pa boards and control boards and built gear

 

 

Not used his gear myself but lots of others have with positive comments ( and I have no connection to Jim )

 

Key on all LDMOS amps is

1) don't overdrive

2) as above

3) as above

 

Dave

G4IDR

 

 

 

 

 

 

On Fri, 20 Sep 2019, 10:52 Andy GD1MIP, <gd1mip@...> wrote:

I am looking to up my RF power on 23cm.

I have a radio output of 0.5 - 10 watts for drive, it'll be used for SSB,  CW  & data. Ideally I want at least 50 watts, but much more would be great. 

I know there are Gemini ones, but I can't afford them new. Also I've emailed Bert PE1RKI & VHF design to see what's on offer. 

So, are there any other companies selling ready to run 23cm linear amplifiers that cost less than a Gemini? Or do you know someone selling one?

Thanks Andy GD1MIP 

PS I will be at Newark on Friday so can hope.

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


--
Paul Bicknell G8KFW   South Coast UK


Re: 23cm amp. Looking for suggestions of built / ready to run units.

geoffrey pike
 

On Friday, 20 September 2019, 10:52:39 BST, Andy GD1MIP <gd1mip@...> wrote:


I am looking to up my RF power on 23cm.

I have a radio output of 0.5 - 10 watts for drive, it'll be used for SSB,  CW  & data. Ideally I want at least 50 watts, but much more would be great. 

I know there are Gemini ones, but I can't afford them new. Also I've emailed Bert PE1RKI & VHF design to see what's on offer. 

So, are there any other companies selling ready to run 23cm linear amplifiers that cost less than a Gemini? Or do you know someone selling one?

Thanks Andy GD1MIP 

PS I will be at Newark on Friday so can hope.


Re: 23cm amp. Looking for suggestions of built / ready to run units.

ian hope (2E0IJH)
 

Tony's direct email is info@..., if anyone wants it, I have bought pallet kits off him before, our 300w 70cm pallet is one of his.
 
Ian
2E0IJH

 
Sent: Friday, September 20, 2019 at 12:29 PM
From: "Steve G4HTZ via Groups.Io" <essexsteve@...>
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] 23cm amp. Looking for suggestions of built / ready to run units.
 
Have you seen the chap who advertises on eBay from Italy ...300w for about £450 delivered ...obviously psu required .....
 
Steve G4HTZ 

On 20 Sep 2019, at 10:52, Andy GD1MIP <gd1mip@...> wrote:
 
I am looking to up my RF power on 23cm.

I have a radio output of 0.5 - 10 watts for drive, it'll be used for SSB,  CW  & data. Ideally I want at least 50 watts, but much more would be great. 

I know there are Gemini ones, but I can't afford them new. Also I've emailed Bert PE1RKI & VHF design to see what's on offer. 

So, are there any other companies selling ready to run 23cm linear amplifiers that cost less than a Gemini? Or do you know someone selling one?

Thanks Andy GD1MIP 

PS I will be at Newark on Friday so can hope.

--
Steve G4HTZ 
JO01JN


Re: 23cm amp. Looking for suggestions of built / ready to run units.

Mike Willis
 

Interesting. That looks very like a pair of XRF286s so 300W is perhaps optimistic but it's got the hard parts done..
--
Mike G0MJW


Re: 23cm amp. Looking for suggestions of built / ready to run units.

Steve G4HTZ
 

Have you seen the chap who advertises on eBay from Italy ...300w for about £450 delivered ...obviously psu required .....

Steve G4HTZ 

On 20 Sep 2019, at 10:52, Andy GD1MIP <gd1mip@...> wrote:

I am looking to up my RF power on 23cm.

I have a radio output of 0.5 - 10 watts for drive, it'll be used for SSB,  CW  & data. Ideally I want at least 50 watts, but much more would be great. 

I know there are Gemini ones, but I can't afford them new. Also I've emailed Bert PE1RKI & VHF design to see what's on offer. 

So, are there any other companies selling ready to run 23cm linear amplifiers that cost less than a Gemini? Or do you know someone selling one?

Thanks Andy GD1MIP 

PS I will be at Newark on Friday so can hope.

--
Steve G4HTZ 
JO01JN


Re: 23cm amp. Looking for suggestions of built / ready to run units.

Mike Willis
 

The problem you will have is the Gemini 200W amplifier at £1300 is not all that expensive when you consider the awful exchange rate and all the extras you need on top of a basic amplifier you might get from Bert or Jim. Excellent as they are they need a good filter, heatsink, relays, protection circuitry and an enclosure. These are things you can do yourself, but the parts are quite expensive unless you can get them surplus. Hence, any commercial amp is likely to head towards £1k. Best bet is second hand from one of the many appliance operators who come and go rapidly. They don't tend to populate ukmicrowaves but can be found on Facebook and the specialist amateur radio sales sites.
--
Mike G0MJW

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