Thank you all for your help troubleshooting. I can't say exactly what the problem was. Alignment menu 8.7 BPF value suddenly jumped to 08+ bars. I was able to complete the alignment (BPF, IQ, Lo, Hi).

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John: I just looked at your photo -- the solder connection in the center of L2 looks suspect. Steve N9SZ

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John: Sounds like you have an enamel removal/soldering issue with your LPF toroids. Steve N9SZ

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Update: 1. I found a solder bridge shorting the RF output. But BPF output is still low (05) 2. I used a resistor in parallel with R43 (as explained int the troubleshooting guide). See photo here: http

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John, 2as C1 fully to the left, or fully to the right? You should be able to peak at 8 and about half-scale bars. 4 is way too low. 73, Shane KE7TR

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The troubleshooting guide says "If the signal strength is less than 7, or if there is no peak, then it is necessary to investigate further." See https://www.qrp-labs.com/qcxmini/trouble.html.

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I don’t think there‘s any minimum value for peaking the BPF. I think you’re looking for a relative value. If you’re still struggling with getting the secondary 1 and 2 are in phase, then you should so

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My 40 m QCX has the BPF signal maxed with 08 and some bars. Similarly for my QCX+ on 20.

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This is a 40m build. Secondary 3 started with 38 turns. I removed 5 turns as the directions said because the capacitor was at one of it's end points. The turns are done in the correct sense--I'm certa

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If you‘re going to rewind T—1, cut the windings above the board. Then you can heat each individual stub and once the solder has melted, pull it out with tweezers. You shouldn’t need any force. Once th

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You might be able to add the turns in place if you’re deft. It’s hard to rework without lifting a pad. If you do lift a pad, run a little wire to repair the connection. Be sure you make all the necesa

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You need to carefully remove T1 and do a complete rewind. Pay very close attention to the pads as you un solder from the PCB. Closely follow the instructions for winding T1. It can be done, just take

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Winding directions look fine. I count the big winding, S3, as 33, the rest 5. I am guessing build is for 40 m. If so you need to add 5 turns to S3, then peak BPF, etc. Your windings look well done.

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All windings should go in the same sense on T1 as it says in the assembly manual. i/q split is performed by FST3253 and phase and timing manipulated via op amps. largest winding on T1 and C1 are first

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Hi John, What band are you trying to build it for? I count 33 turns for S3. 73, Gregg W7GRM

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I posted the T1 photo in the photo albuym area. See: https://groups.io/g/QRPLabs/album?id=258721 John

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It saves in "drafts" and does not post.

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Daniel, Yes, I see the icon for photo. I upload the photo then click "Reply to Group" It takes me to a page of my subscriptions. John

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Where is the trouble? Do you see the little row of icons at the top when you reply? The one that is framed is for uploads. Or is the problem elsewhere?

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I am having trouble posting a picture.

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