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Take a look at the "midnight loop" project (pdf at https://www.nonstopsystems.com/radio/pdf-ant/antenna-article-magloop-midnite.pdf (

I have never heard an outside signal on my bit40. Testing with a signal generator I get signals down to or below 10uV? I have no antenna, but a wire out the door brings in nothing but a little more

I use 1.75mm Filament. I use Simplify3D set to 30% fill and 0.1mm layer. I have setup in Inches, I can see relative size when the part loads. The big knob loads with the bottom (hollow parts up), so I

Is there any plans to make pre-programmed memories?

The big knob is 1.4" x 0.7". You probably need to covert units?

This is Field Day weekend, so I probably won't be on Sunday night, but with a little luck, I'll be using the BitX for our Field Day operation under the call sign K2OAK. -- John - WA2FZW

here is a pic of the one I printed without checking...

Are you sure you sent the correct.stl files? The one I printed came out huge and when checking the other one a bit more carefully after slicing, it would have been even bigger. 137.5 x 137.5 x 75 mm,

I forgot to mention: I do not need a tuner, the antenna matches perfectly, 1:1. The variable cap is the tuner. I get about 200 kHz bandwidth before I have to retune. You would not want to use aluminum

When I built my 10M loop, I used this calculator: http://www.66pacific.com/calculators/small-transmitting-loop-antenna-calculator.aspx I liked this calculator, since it provides approximate voltages

Installed! Working good. I did not manage to use the brown wire for the tuner, but i guess i did something wrong... Great to see people like you determined to make this rig shine hasta la vista!

I have some plans and ideas, but thought I should consult with the smartest group of people I know. Can I use zinc plated hardware with aluminum roof flashing? How to attach a arduino stepper motor to

I'm in for 2. McCoy N5YAV

Mike,As you are going for fresh pcbs,? perhaps It is worth? to incorporate? Auto level control , that helps near constant level at all frequencies.There are such mods for AD9850 /51.

Hi Mike, I'd like three of them, please. 73, Larry K3PEG

Ordered on June 12, received June 20, SN's: 4/270, 4/376 Jack, W8TEE

I'll take 3 more. 73, Richard W2KAP

I'm planning on ordering more of the Type I to Type II DDS adapter boards.? They will be a re-spin that corrects the Sine 1 connections that required a modification to the previous boards.? Anyone

I like to use Slic3r, myself, and Cura on occasion, though now I am stuck with the older versions of Cura since the new ones only work with 64 bit systems. Of the two, I prefer Slic3r anyway, as it

HI Jack and the group the board is arrived today at my qth ok via mail. Thanks for your efforts with the group and your attention to me. Thiss week I worked the country Nbr. 137 in JT65 using QRP,