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Hi Does class E make stronger or weaker harmonics than class D, that I think the U3 uses? Jan

Welcome back to the hobby, Peter!! QRS is the CW code for “slow down your CW speed” or descriptive “I am using slow speed” QRSS is REALLY SLOW speed. It is decoded by looking at the signal

Hi A theoretical comparison of the original number off turns and 1 and 2 turns less. Note the Toroid calculator at Kits an parts says that 17 turns is 0.87 uH not the 0.904 Hans say,? on other

Hi all I wonder if someone can enlighten me.? What is QRSS/WSPR, what does it stand for, what is

that works but so should searching on "CW Transceiver kit" which did not. Not until I restricted results to items located in Japan. eBay's search tool is "too smart" sometimes as it "assumes"

Hi Curt Thanks for the reply. Don't forget if the mosfets are still on the board then all values will be the same as they are in parallel? My guess is that your problem is the number of turns on

Simulations are interesting, but my practical realisations of the 30m filter have shown much higher insertion loss than 0.15dB. PeterO G0DZB -- Please don't email me "off list" about "QCX

Thanks Warren Tou are absolutly correct. Changed in the file, now the plot looks ok. So I have deleted the original plots as they was incorrect. Jan

Jan, I think that element #1 in your 20 meter simulation should be type "cap par", not "cap ser". This might explain why the shape is soo odd looking. 73, Warren K2GQT

VK4RV must have his radio on 20m but his WSJT-X software set to the wrong band (30m). BB02 is only transmitting on 20m.

Mike Thanks for email, you logic is good.? in my case all 3 mosfets measure the same when tested with dvm for resistance. So I think they each may have taken some damage,? so I plan to replace the

Search using description below shows 2 under international but none under “eBay US” listing Art, N2AJO Sent from my iPhone

Hans, Firstly an excellent kit. ?Secondly. ?I would run an advertisement in some of the ham radio magazines. ?Here in the US I am sure if you ran even a small ad in QST magazine you would get a

Greetings! Try eBay here in the US Auction # 253282568302 is for the title below. or search for QCX 5W 20m CW Transceiver kit Hope this helps! 72/73 de Jeff K9JP - - - - - -

Of course, that's a typo -- I actually had *Message: _TEST CQ #CS _ * Are these transmissions productive of spots, or what?? I'm unclear on the object of this exercise.

It is not so easy to find either. I found the QRP-Labs eBay shop by searching for ebay shops and by name but no matter how I search on ebay.com for QCX or CW transceiver I can not find the

Hi Hans, Well atleast we now know it is an official QRP-LABS shop. Yes ebay dont like you linking to external sites as this could mean loss of income for ebay due to sales outside of ebays control. I

UFB! It says under the cover photo though: "Picture: Hans Summers" but that's not you LOL

Just wanted to say a quick thanks to Hans. I can only imagine with nearly 3000 kits going out and remote management of shipping in Japan that it is a huge time consuming task to keep up with. You and

But if what you are saying is true, why do we have 3W out on 30m and 4W out on 40m on a QCX that was built for 30m without need for any adjustment. Not picking an argument as I'm not knowledgeable at