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Functionally it will work fine for you to finish assembly and start testing.? Those capacitors affect only the bandpass filter and two low-pass filters. But check carefully first: things fit very

I had a 1% resistor sample kit whose resistors marked 10K were actually 1K.? I had some head scratching figuring out why the gains of my opamp circuits were all wrong. 73, Don N2VGU

Here are a few questions, observations, checks to do, and resources for you to look at: 1) First a couple of checks based on your photos (the resolution got stripped, so it is hard to tell whether

If you're a member, you should be able to look in the archives. Jack, W8TEE

I believe the excess wire is quite intentional, due to Hans' correct assumption that some will make mistakes and need a little more. Knowing I'd already wasted a foot or two of wire, I pre-cut lengths

Many thanks Stan for this infos. I will now tests with my qmx+ and fldigi.

Currently, when operating CW with fldigi and QMX+, if you set the fldigi CW modem set for CAT keying, fldigi uses the CAT 'KY' command to send the characters - it does not try to use PTT to turn the

I received my kit for a high-band QMX this Tuesday, and have been working off and on over the course of the week to assemble it. I've gotten to the point where it's fully assembled, and after several

I received my 20m-10m QMX kit and am currently assembling it. Unfortunately, the kit I received was missing the three 33pF and the 100pF capacitors (C401, C404, C521, C516). It will probably take a

Audio levels problem solved ! It was due to incorrect parameters in the AGC settings. I swear I did not do it....think these defaults came with v1.02 ? The AGC threshold was set to 15...should be 8.

You shouldn't have that much leftover wire if you know the inductance, the wire diameter, and the core material. Kits and Parts has a table that helps to estimate the length of wire needed

Drilling is not an acceptable rework method for boards with plated-thru holes.? This is a 6-layer board with internal layers you should never go any where near it with a drill bit lest you ruin the

I think that the assembly instructions should recommend this approach, I think folks are poorly-served by encouraging use of the burn-and-pray method, it just fails too often. Perhaps it works OK for

Hans explains it so well, I almost understand it.

I'd like a solder pot, but it will have to wait until I have a bigger workspace and that day may not come. My bench is so cramped that I think a pot of melted lead would be a rather dangerous thing to

Probably more likely different load impedances and/or latent failures due to electrostatic discharge or poorly-regulated or excessive supply voltages. 73, Don N2VGU

It has already the AGC board, see just below the "s" of Labs. 73 - Pierre - FK8IH

Thank you for posting. Really enjoyed a peek into Han’s world and creative problem solving. Dave

One person's experience: I use a current and voltage limited supply when first testing kits. However, after I confirm that all is working properly, I go to battery power thereafter. All of my

Yes Stan, that is the scenario. When listening on headphones to relatively weak signals in, for instance LSB mode...to change to another mode you can only click forward passing through Digi mode. In