My QLG2 might be on a world tour. No one knows. On May 20 my order update gave me the link to TNT and when entered my customer reference it showed delivery on May 24 to the correct address. It was

Hi, Jakob Sorry, a true half wave is a special case, with a narrow impedance peak at around 2000 ohms. Either side of the peak the impedance is much lower and adds a bunch of "j" to the

Talk: The Magic Band by Don Field G3XTT Don Field G3XTT will take us through the fascinating properties of the 6m Band which results in people calling it “The Magic Band“. The propagation

Dan, Maybe because the group is using all it's storage? Using 128 MB for attachments storage Using 624 MB for photos storage And some Files.. 73 Alan G4ZFQ

One problem with removing the bandpass filter in the QCX is that you align the phasing network for maximum suppression of the opposite sideband in the center of the filter's passband. Opposite

Thanks, Allison. You give me hope! Jakob

I used one of those kits and the toroid was fine. The wire supplied was about #24 and easily soldered. The antenna SWR indicator is only for tuning and must be switched out of you incur a large

Spread sheet made from the one used for the base QCX filter... Its on .ODS format Excel should digest that and its the nominal format for Openoffice/LibreOffice Calc. The left side is for those that

That's a huge help and very kind of you Allison. I also just saw in the manual it meantions the gain. 5.7 CW filter The CW filter used in this receiver has a 200Hz bandwidth. The circuit is

I meant my rigs don't normally exceed 10W. The three-core EFHW can apparently handle thousands of watts without saturation.

Tuned is the way to go if you can have a designated, single-band antenna running to your operating position. I would think that's often not often the case with a portable, QRP radio. I would

Thanks Alan, I'll look into this, I did read about being able to by pass it completely. I'll see what that sounds like with no filter! The gain was mentioned by Hans in an old thread I found on the

The Filter in the QCX is of the low pass and high pass format using opamsp. The band width is governed by the edges of the high pass (cutoff requency) and the high pass cutoff frequency. The resulting

Hello? I do not think the filter has any gain. I use a QCX for SSB reception by simply bypassing the filter stage with a switch. I think al I did was to switch the filter side of C20 between the

😂 73 SM6LKM jakob@... wrote:

I followed Dan's photos a while back to change to the 78M05. It worked perfectly. I did have to change out a bad IC9 as well. Now, my 20m mini runs like a champ.

Sebastian, This has been discussed, maybe a message search will help. As far as I remember it is partly due to microphonic SM capacitors. 73 Alan G4ZFQ

I had this problem with a uBITX using a Teensy 4.1 processor. It resolved - more or less - by replacing the LCD display. The ticks are still in there, but muted. Seems to be a common problem with

I don't know why all of my photos were removed, but here is one, I hope it helps. -- 73, Dan - W2DLC

Hi, i've successfully build a QCX mini and it is working as expected. There is just on thing that annoys me a lot and that is that I can clearly hear the rotary encoder in the audio channel when