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Hi folks,? looking for first advices here - if anybody have similar experience and then solution. Situation: - QCX 40 just built - no parts missing, no specialities - modified values of some

Jim, The QCX is designed as a narrow bandwidth RX so opening it up would just make it a direct conversion RX with no image rejection. OK for AM broadcast. Take audio from IC5 pin 1 or 7. For SSB

the almost mod free option.... break out the IQ signals and use one of the SDR Apps? (tuning will still be done off the QCX) Alan

Just finished building my third QCX, this one for 30m.? Hoping to excape the contesters and have some liesurely stress-free QSOs. I've noticed the QCX-30 tunes to 10.000 mHz (and below).? It's a

Hi all I would like to share my experience; I have a QCX/20M. The output power is 2,8 watts at 13,8V DC Yaesu FP 757HD power supply 30 amp. and a Hy Gain TH7DX antenna. In the last two months I had

Interesting experiment. I had a miserable half a watt out of my 20m unit after completion at 13.8V DC which was a bit disappointing. In fact I was a bit deflated and put it away for the night. The

Hi All, I would like to share my experiment. After a several month i have fixed output power for my QCX 20M? (my kit No. # 487) and now i can getting with full power 5 Watts @12Vdc before I solve

I just had the thought but I didn't think it would work. However Alan, if Hans sledgehammer destroyed This WinBloz 10 puter that won't hurt my feelings at all.

??? Carl, If it's not just a paper exercise.... I doubt the U3 eep file is enough to fool the "use original IC" capture, but nothing to loose, You are not going to "break" anything they are both

Carl. Only if Hans sends you the copy-protected firmware. It comes with a sledgehammer to destroy your computer after loading it:-) 73 Alan G4ZFQ

I just had a brain cramp and wonder, can a good U3S chip be flashed with the QCX firmware? Just wondering, Carl.

Howard Couldn't see the wood for the tree's..... How to update the firmware on the QCX using an Arduino UNO and

Martin /g/QRPLabs/message/25598 73 Alan G4ZFQ

Hi Folks My QCX 20 seems to run nice and smothly. Would I improve something with the August update or can I skip that ? Martin DK3UW

??? Hi Howard, Beyond getting the ISP pin connections correct, (there are different size header "standards") the actual update process is broadly the same for any other QRP Labs product, bar the

I had seen the firmware update page, but I was thinking that earlier at least one other way to do the update was outlined there. Howard

Thanks, Alan. ?That's helpful. I should have remembered - I was mixing this up with another rig that I work on. ? Howard

Alan thanks for answering and correcting my recent answer on this - nice that calibration is 'stored' only in those pots.? sounds like a firmware transplant on the QCX is not so bad.? I just did a

Greg perhaps you have gotten through the travails of improper part installation.? let's patiently work toward the finish line.? does the rig hum when you transmit into a dummy load?? also what

Oh, contact?him not contact you. :-) Sorry.