Date   

Re: New Sick 40M QCX

Don Huffstetler <wa6ouw@...>
 

Karl
 
Thanks for getting back to me.................I hooked up the head phones and heard a constant clicking sound.  The noise doesn't change when I turn the encoder while hooked up to a dummy load.
 
73's
 
Don
wa6ouw
 
 

-----Original Message-----
From: Karl Heinz Kremer - K5KHK <khk@...>
To: QRPLabs <QRPLabs@groups.io>
Sent: Thu, Jan 3, 2019 4:06 am
Subject: Re: [QRPLabs] New Sick 40M QCX

Have you tried listening to the radio yet? Hook up headphones, increase the volume. If you hear some noise, turn the encoder. Does the noise change while you tune through the band? If so, the controller is working, and the problem is just with the display. I had to re- solder the display connector ( on the display side) to make mine work. 
--
Karl Heinz - K5KHK


Re: #qcx Power output on 20 Meters #qcx

Dieter, DH1HD
 

Hello, no, thera are capacitors fromm my craft box.

73 Dieter


Re: Shack clock out of date

Curt M.
 

I'm patiently awaiting the fix for this.  I built two clock kits for an application where I need to know accurate 12 hour local time. When I saw that the upgrade was available to do this I flashed both of the clocks and scratched my head for a few days trying to figure out where I was making a mistake.  I'm sure they will get to it sometime.


Re: #qcx Power output on 20 Meters #qcx

Curt M.
 

Is there something I should know before I build my 20m QCX?  It's probably about a week away so it's not in my hands yet.

The C25, C26 and C30 that you mention......are there new capacitors supplied with the kit to resolve an issue or is this something that I need to supply on my own and have ready to go when i build my 20m QCX?

Curt M.


Re: U3S Deluxe WSPR intermodulation products

PA3CRZ
 

Hi Geoff,

Just found an article by ZL2IK ( https://zl2ik.blogspot.com/2015/11/u3s-beacon-kit.html  )
He uses 3 L7805CV's to power the U3S, synthesizer board, and the OXCO oven separately.
Haven't got the oven, so 2 7805's will be enough.....or, indeed, maybe even one.

Thanks for the link to the clean supply.
Will give this a try (if I can figure out how to use this schematic for 5V output)

73,
Hans


#qcx Power output on 20 Meters #qcx

Dieter, DH1HD
 

Hello, I also had problems with my QCX for 20 meters. The output power was just under 2 watts. I have, like other OM here, the capacitors C25 to C26 and the C30 replaced by other types.
in addition, I have moved the coil wire on the ring cores a bit. Now I get, depending on the voltage up to 6 watts to the antenna :-)

73 de DH1HD, Dieter


Re: Shack clock out of date

Rick Williams - VE7TK
 

I believe that this firmware glitch has been reported to Hans. No doubt it's on his "to do list". My clock lost the Month at for Jan 1 on the Local time display. It came back at 0000 UTC when it rolled over to Jan 2nd UTC.

--
73, Rick
VE7TK


Wanted QLG1 do you have a spare?

m0bmn
 

Just going to order some bits and bobs from the “shop” but before I do just wanted to check that no one in the UK as a spare QLG1 gps module they want to sell,

Reply direct please m0bmn@...

If not its one extra thing to order (and to wait for )

73/74 Paul M0BMN

 


Re: How do I adjust the display to the actual TX on QCX?

Jerry Gaffke
 

Heaven forbid!
But I did write the si5351 code that is currently used on the uBitx.

Jerry


On Thu, Jan 3, 2019 at 12:10 AM, Alan Richmond wrote:
Are you a lawyer?


Re: U3S Deluxe WSPR intermodulation products

Simon
 

Not im, intermodulation

It is Amplitude modulation of rf carrier by non pure ac. 50Hz plus dustoration caused by switch mode power supply load

Can be caused by a dozen meacanism. The more Majar Solution
 
Filter dc
Screen shield to reduce coupling by capacitance
Ground wire current cause voltage diffetence


On Thursday, January 3, 2019, geoff M0ORE via Groups.Io <m0ore=tiscali.co.uk@groups.io> wrote:
Many wall plug type power supplies don't have much smoothing built in and rely on the unit being powered to clean up the supply. 7805 regulators are not the quietest devices around and can cause noise problems if not fully de-coupled correctly. Why do you need two or three of them. I have never seen more than one in use. One will supply 1 A and if more current is needed, then a series pass transistor such as a 2N3055 can boost the current. A LM 317 variable voltage regulator is much quieter and can also supply 1A again followed by a transistor to boost the current avaliable.
For a really clean supply, look at http://www.wenzel.com/documents/finesse.html .


Re: U3S Deluxe WSPR intermodulation products

geoff M0ORE
 

Many wall plug type power supplies don't have much smoothing built in and rely on the unit being powered to clean up the supply. 7805 regulators are not the quietest devices around and can cause noise problems if not fully de-coupled correctly. Why do you need two or three of them. I have never seen more than one in use. One will supply 1 A and if more current is needed, then a series pass transistor such as a 2N3055 can boost the current. A LM 317 variable voltage regulator is much quieter and can also supply 1A again followed by a transistor to boost the current avaliable.
For a really clean supply, look at http://www.wenzel.com/documents/finesse.html .


Re: Extra parts in my OCXO/Si5351A synthesizer module kit #synth #ocxo #si5351a

John Canfield <bucket@...>
 

Wow, I think I have both of them Hans! Now I need to come up with a project to use the 10 Mhz crystal. I wouldn't mind sending them back but I suspect postage would be prohibitive.
--
John, WB5THT


Re: Thank you...

Harv - K2PI <gadgetlust@...>
 

Thank you, Hans.   What you have done for the kit building community is beyond measure; you have moved the goalposts way past everyone else.   Bravo, and take care of yourself and familynin this New Year.

73,
-- 
Harv
K2PI
Warrenton, VA


Re: Band choice QCX

Harv - K2PI <gadgetlust@...>
 

Luc,

Yes, each kit is sent with the parts for a specific band.  There are specific caps for certain bands, and not every kit contains the same.   You may get lucky, but my personal experience is that you will have to procure a part or two to build the QCX for a band other than the one the parts list was filled for.  You will have to wind the toroids differently, but I have found there is enough wire in the kits for that if you are careful.

73,
--
Harv
K2PI
Warrenton, VA


Re: Band choice QCX

Kwacka
 


Re: Band choice QCX

Paul Harrison
 

👍 oh dear, then I have caught it too.🤔

73 de Paul.



On Thu, Jan 3, 2019, 14:12 James Daldry W4JED <jim@... wrote:

Hi, Paul

It's only contagious among 70+ people. You can have them at younger ages, but they aren't catching at that point in life.

Jim Daldry W4JED

On 1/2/19 3:38 PM, Paul Harrison wrote:
Hey Jim,

Now you have scared me, what is a "brain f**t"? i have never heard of this, is it contagious? 

Paul DJ0CU

On Wed, Jan 2, 2019, 21:26 James Daldry W4JED <jim@... wrote:

Hi, Luc

I ordered an 80 meter kit and built it using the 40 meter instructions. I now have a 40 meter radio. The differences are the capacitors in the LPF, whether the BPF trimmer gets a parallel capacitor, and the number of turns on the coils. I had wanted the 40 meter, but had a brain f**t while ordering. Happens occasionally when you are past 70 years old.


Jim Daldry W4JED

On 1/2/19 11:22 AM, LUC VLECKEN wrote:
Hello to the group,

I am about to start on a QCX (ordered for 60m band).
Question: is it preprogrammed only for one particular band? Or can it be altered to another band by its settings (and the according caps and values for the coils then naturally).

Thanks in advance for your reply
and kind regards and all the best for 2019 to all!

Luc Vlecken ON4ALV
+32473201069
 



Re: Band choice QCX

James Daldry W4JED
 

Hi, Paul

It's only contagious among 70+ people. You can have them at younger ages, but they aren't catching at that point in life.

Jim Daldry W4JED

On 1/2/19 3:38 PM, Paul Harrison wrote:
Hey Jim,

Now you have scared me, what is a "brain f**t"? i have never heard of this, is it contagious? 

Paul DJ0CU

On Wed, Jan 2, 2019, 21:26 James Daldry W4JED <jim@... wrote:

Hi, Luc

I ordered an 80 meter kit and built it using the 40 meter instructions. I now have a 40 meter radio. The differences are the capacitors in the LPF, whether the BPF trimmer gets a parallel capacitor, and the number of turns on the coils. I had wanted the 40 meter, but had a brain f**t while ordering. Happens occasionally when you are past 70 years old.


Jim Daldry W4JED

On 1/2/19 11:22 AM, LUC VLECKEN wrote:
Hello to the group,

I am about to start on a QCX (ordered for 60m band).
Question: is it preprogrammed only for one particular band? Or can it be altered to another band by its settings (and the according caps and values for the coils then naturally).

Thanks in advance for your reply
and kind regards and all the best for 2019 to all!

Luc Vlecken ON4ALV
+32473201069
 



Re: New Sick 40M QCX

Karl Heinz Kremer - K5KHK
 

Have you tried listening to the radio yet? Hook up headphones, increase the volume. If you hear some noise, turn the encoder. Does the noise change while you tune through the band? If so, the controller is working, and the problem is just with the display. I had to re- solder the display connector ( on the display side) to make mine work. 
--
Karl Heinz - K5KHK


Re: U3S Deluxe WSPR intermodulation products

PA3CRZ
 

Hi fellow amateurs,

Thanks for all your answers. Didn't get around to thank you all until now.

Yes, the AC frequency here is 50 Hz, so the issues I have must be related to im products, causing peaks 50, 100 and 150 Hz apart (and probably more....)

I started investigating what the best way would be to alleviate these problems, without too high costs.
Saw an article that uses 3 L7805CV voltage regulators (I will need only 2), with an input voltage of 12V.
Think I'll be going that way too.

Thanks again for the support !

73,
Hans
PA3CRZ


Re: QRSS New Year's Eve Celebration!

Hans Summers
 

Hi Mark
 
Thank You Hans!  I look forward to your update following some time on the air with it.  I too have a the 12m Spiderbeam mast, but alas the Model 404 is out of stock here in the US for the time being.  

This morning I had a nice QSO with Umberto I1OXO, on 7.025MHz. My first QSO in just over a year :-//   I have also uploaded a map of my first 24 hours WSPR operation on 20m and 40m with 200mW from the Ultimate3S http://qrp-labs.com/ultimate3/u3s . See http://www.hanssummers.com/404ul.html ... this signal was copied by 184 different stations. Some copied it over a hundred times! The list includes five US stations, two in Iceland, one in South Africa, and best DX to Antarctica (on 40m). As far as I am concerned: at this stage, I feel that this antenna is working nicely.
 
Note, I cannot imagine being able to throw one side of the antenna over my neighbor’s roof here at my QTH!  You have very accommodating neighbors.

Errr... the neighbors are out of town until Spring  :-/

73 Hans G0UPL