Hi all A lighthearted intermission, that I hope you enjoy, discussing first "WHY" then the story of explosions, fireworks... and finally a successful and simple junkbox amplifier producing over 50W RF

Just completed the OCXO/Sig Generator kit. Very impressive design and an interesting challenge to build. I wired up two different power supplies for testing (one for main board and one for heater) whi

Hi guys, I'm Francisco, EA7NK. I have read all the messages on the issues of the sidetone. In my QCX40 the dits were not heard while in TX mode, and it has improved considerably by lowering the value

My first job in life was fixing things. Involved film projectors and related products. Grew to fixing electronic flashes. Was fixing one and had to reform the capacitor. Was within 6 inches of it and

It's been a long journey, mostly waiting for temps and humidity levels so the primer, paint and clear coat would adhere properly...with no further delay..here it is... ..hope to see you guys in Monday

I don't feel the problem is QRPs. I installed some resisters in the wrong places and removed them. I broke a couple and I would like to order the replacements. I don't want to wait for delivery from T

Hi All A couple of things about next week's QCX activity sessions on Monday 29th. In response to feedback and a tiny bit of confusion we've decided to simplify the scoring to: Work anybody 1 point Wor

Hello, I have a problem with my qcx 80. wspr worked great in January. Now that I try again it doesn't work anymore.But CW works witch around 5 watts. I think the GPS also works great. It tracks 9 sate

[I know there is a recent thread on this topic, but I think I'm experiencing something different] Hi All! I'm new to the QCX and finished building my -20 a couple of weeks ago. Other than a bad solder

Hello all. When I sought support for my qcx I found 3 discussion groups. I qcx qcx-ok QRPLabs. I assumed that the qcx group was specific for support while the QRPLabs was more about development. After

My Qcx40 looses about 10 seconds every 48 hours. Is there an adjustment I am missing? de W6LEO

Cue another 3 year long debate about incorporating it into the QRP Labs rigs.. But can we finish the other thread please ;-)) http://southgatearc.org/news/2019/april/new-digital-mode-ft4.htm - Andy -

I think there are two answers to this one, but i'll ask all the same! Any chance of FT8 mode being included in the U3 firmware. I know the room in the ATMEGA is tight! (PI mode anybody still use it???

I'm not sure whether this page is well known, I came across it yesterday. Wspr.vk7jj.com An excellent page for tracking / displaying wspr tx and rx. Congrats vk7jj. Paul DJ0CU.

I've searched this forum and can't find any comments on this. No matter what I set the 7.3 & 7.4 menu items on the QCX to, the battery indicator is always an empty container looking like the battery i

AMP, I meant AMP, not am.

My next QCX is under construction :>) First caveat before I continue I wonder how objective QRP DSB FT8 may be to the masses ? Second caveat solved Add one mixer such as the common NE602 (image) Third

As subject header, anyone know what happened to the M0XPD 'Shack Nasties' blog? As a traditionally non blog reader, he used to do some interesting Arduino / RF stuff..... Nothing since the end of 2017

I would have had it yesterday but I was out when the postman knocked on my door. :<) Now to inventory Dennis AG4TD

Can the VFO/Gen be modulated with a tone for use in alignment usage? Carl